VEHICLE DATA SHEETS - Star Destroyer · 2008-09-13 · VEHICLE DATA SHEETS Specifications for each...

VEHICLE DATA SHEETS

Specifications for each of the major vehiclesdescribed in this book are outlined in the followingdata sheets. An effort has been made to obtain com-parable values for each item despite the wide varia-tions found in the official documents. Dimensionssuch as length, width, and height varied widelydepending on the source. Lengths, for example, oftendid not indicate the position of the gun or if sand-shields and a towing pintle were included. The heightmeasured in the field varied with the load and theresulting spring compression. Where possible, theoriginal design dimensions are used, obtained fromthe arsenal drawings. If these were not available, acomparable value was estimated using the measure-ments taken during tests at Aberdeen Proving Groundand Fort Knox.

Most of the terms used in the data sheets are selfexplanatory, however, some may be clarified byfurther discussion. For example, the tread is thewidth measured between track centers. The fireheight is the distance measured from the ground tothe centerline of the main weapon bore, when theweapon is aimed forward at zero elevation.

Engine power is listed as gross horsepower andnet horsepower. The gross horsepower refers to themaximum power delivered at the output shaft of theengine including only those accessories essential to

the operation of the engine. The effect of fans, gener-ators, air cleaners, etc. is excluded from these mea-surements. The net horsepower is the power actuallydelivered at the output shaft as installed in the vehicleincluding all of the accessories. The same criteriaapply to the measurement of the gross and nettorque.

The ground contact length at zero penetration isdefined as the distance between the centers of thefirst and last road wheels. This value is used to com-pute the ground contact area for determination of theground pressure. Combat weights are used for all cal-culations.

The stowage of the experimental vehicles variedduring their life reflecting the results of the testingprogram and changing user requirements. Early pilottanks were fitted with a .30 caliber antiaircraftmachine gun. This was later replaced by the .50 cali-ber weapon standard on all U.S. tanks.

Ballistic tests on the Pershing showed thedrivers' auxiliary periscopes to be vulnerable to theblast from high explosive shells detonating against theturret. To strengthen the hull roof against this type ofattack, the auxiliary periscopes were eliminated fromthe late production vehicles. As can be seen in photo-graphs of the T26E5 and other late production tanks,only the hatch cover periscope are retained.

203

MEDIUM TANK T20

204

GENERAL DATACrew: 5 menLength: Gun forward, over sandshields 294 inchesLength: Gun to rear, over sandshields 245 inchesLength: Over sandshields, w/o gun 227 inchesGun Overhang: Gun forward 67 inchesWidth: Over sandshields 123 inchesHeight: Over mg mount 96 inchesTread: 102 inchesGround Clearance: 17 inchesFire Height: 75 inchesTurret Ring Diameter: (inside) 69 inchesWeight, Combat Loaded: 65,758 poundsWeight, Unstowed: 60,704 poundsPower to Weight Ratio: Net 13.7 hp/ton

Gross 15.2 hp/tonGround Pressure: Zero penetration 13.5 psiARMORType: Turret, cast homogeneous steel; Hull, rolled and cast homogen-

eous steel; Welded assemblyHull Thickness: Actual Angle w/Vertical

Front, Upper 2.5 inches 47 degreesLower 2.5 inches 53 degrees

Sides 2.0 inches 0 degreesRear 1.5 inches 10 degreesTop 0.75 inches 90 degreesFloor, Front 1.0 inches 90 degrees

Rear 0.5 inches 90 degreesTurret Thickness:

Front 3.5 inches 0 degreesSides 2.5 inches 0 to 13 degreesRear 2.5 inches 0 degreesTop 0.75 inches 90 degrees

ARMAMENTPrimary: 76 mm Gun M1A1 in Mount T79 in turret

Traverse: Hydraulic and manual 360 degreesTraverse Rate: (max) 15 seconds/360 degreesElevation: Manual +25 to -10 degreesFiring Rate: (max) 20 rounds/minuteLoading System: ManualStabilizer System: Elevation only

Secondary:(1) .30 caliber MG M1919A4 flexible AA mount on turret*(1) .30 caliber MG M1919A4 coaxial w/76mm gun in turret(1) .30 caliber MG M1919A4 in bow mountProvision for (1) .45 caliber SMG M1928A1

AMMUNITION70 rounds 76mm 12 hand grenades540 rounds .45 caliber7000 rounds .30 caliber

FIRE CONTROL AND VISION EQUIPMENTPrimary Weapon: Direct Indirect

Telescope T92 Azimuth Indicator M19Periscope M4 Gunner's Quadrant M1with telescope Elevation Quadrant M9

Vision Devices: Direct IndirectDriver Hatch Periscope M6 (2)Asst. Driver Hatch Periscope M6 (2)Commander Hatch Periscope M6 (1)Gunner None Periscope M4 (1)Loader Hatch Periscope M6 (1)

Total Periscopes: M4 (1), M6 (6)

*Early armament and stowage, .30 caliber AA MG later replaced by a.50 caliber weapon

1100 cubic inches5.4 x 6 inches7.5:1450 hp at 2600 rpm500 hp at 2600 rpm950 ft-lb at 2200 rpm1040 ft-lb at 2200 rpm1414 lb, dry196 gallons32 quarts

ENGINEMake and Model: Ford GANType: 8 cylinder, 4 cycle, 60 degree veeCooling System: Liquid Ignition: MagnetoDisplacement:Bore and Stroke:Compression Ratio:Net Horsepower (max):Gross Horsepower (max):Net Torque (max):Gross Torque (max):Weight:Fuel: 80 octane gasolineEngine Oil:POWER TRAINTransmission: Torqmatic, 3 speeds forward, 1 reverse

Torque Converter Ratio: Varies from 1:1 to 4.4:1Gear Ratios: 1st 1.63:1 3rd 0.39:1

2nd 0.74:1 reverse 1.17:1Steering: Controlled differential

Bevel Gear Ratio: 2.434:1 Steering Ratio: 1.515:1Brakes: Mechanical, external contractingFinal Drive: Spur gear Gear Ratio: 2.84:1Drive Sprocket: At rear of vehicle with 13 teeth

Pitch Diameter: 25.038 inchesRUNNING GEARSuspension: Horizontal volute spring

12 wheels in 6 bogies (3 bogies/track)Tire Size: 20 x 9 inches6 track return rollers (3/track)Adjustable idler at front of each trackIdler Size: 22 x 9 inchesShock absorbers fitted on front and rear bogies

Tracks: Outside guide, T48 and T51Type: (T48) Double pin, 16.56 inch width, chevron

(T51) Double pin, 16.56 inch width, smoothPitch: 6 inchesShoes per Vehicle: 158 (79/track)Ground Contact Length: 147 inches

ELECTRICAL SYSTEMNominal Voltage: 24 volts DCMain Generator: (2) 24 volts, 50 amperes, driven by power take-off

from main engineAuxiliary Generator: (1) 24 volts, 125 amperes, driven by the auxiliary

engineBattery: (2) 12 volts in seriesCOMMUNICATIONSRadio: SCR 508 or 528 in rear of turret; SCR 506 (command tanks

only) on shelf in front of loaderInterphone: (part of radio) 5 stationsFlag Set M238, Panel Set AP50A, SpotlightFlares: 3 each, M17, M18, M19, and M21 (command tanks only)Ground Signals Projector M4 (command tanks only)FIRE AND GAS PROTECTION

(2) 10 pound carbon dioxide, fixed(2) 4 pound carbon dioxide, portable(2) 1½ quart decontaminating apparatus

PERFORMANCEMaximum Speed: Sustained, level road 30 miles/hour

Short periods, level 35 miles/hourMaximum Tractive Effort: TE at stall 40,000 pounds

Per Cent of Vehicle Weight: TE/W 60.8 per centMaximum Grade: 58 per centMaximum Trench: 7.5 feetMaximum Vertical Wall: 24 inchesMaximum Fording Depth: 48 inchesMinimum Turning Circle: (diameter) 65 feetCruising Range: Roads approx. 150 miles

MEDIUM TANK T20E3

205

GENERAL DATACrew: 5 menLength: Gun forward, over sandshields 294 inchesLength: Gun to rear, over sandshields 245 inchesLength: Over sandshields, w/o gun 227 inchesGun Overhang: Gun forward 67 inchesWidth: Over sandshields 127 inchesHeight: Over mg mount 97 inches

Tread: 105 inchesGround Clearance: 16 inchesFire Height: 76 inchesTurret Ring Diameter: (inside) 69 inchesWeight, Combat Loaded: 67,500 poundsWeight, Unstowed: 62,500 poundsPower to Weight Ratio: Net 13.3 hp/ton






Front 3.5 inches 0. degreesSides 2.5 inches 0 to 13 degreesRear 2.5 inches 0 degreesTop 0.75 inches 90 degrees

ARMAMENTPrimary: 76mm Gun M1A1 in Mount T79 in turret


Secondary:(1) .50 caliber MG HB M2 flexible AA mount on turret*(1) .30 caliber MG M1919A4 coaxial w/76mm gun in turret(1) .30 caliber MG M1919A4 in bow mountProvision for (1) .45 caliber SMG M1928A1

AMMUNITION68 rounds 76mm 12 hand grenades300 rounds .50 caliber600 rounds .45 caliber5000 rounds .30 caliber

FIRE CONTROL AND VISION EQUIPMENTPrimary Weapon: Dkect Indirect




*Late armament and stowage, a .30 caliber AA MG was originallyspecified


ENGINEMake and Model: Ford GANType: 8 cylinder, 4 cycle, 60 degree veeCooling System: Liquid Ignition: MagnetoDisplacement:Bore and Stroke:Compression Ratio:Net Horsepower (max):Gross Horsepower (max):Net Torque (max):Gross Torque (max):Weight:Fuel: 80 octane gasolineEngine Oil:POWER TRAINTransmission: Torqmatic, 3 speeds forward, 1 reverse

Torque Converter Ratio: Varies from 1:1 to 4.4:1Gear Ratios: 1st 1.63:1 3rd 0.39:1



Pitch Diameter: 25.054 inchesRUNNING GEARSuspension: Torsion bar

12 individually sprung dual road wheels (6/track)Tire Size: 26 x 4.5 inches6 dual track return rollers (3/track)Final version equipped with 10 track return rollers (5/track)Dual compensating idler at front of each trackIdler Size: 24.5 x 4.5 inchesShock absorbers fitted on first 2 and last 2 road wheels on each side

Tracks: Center guide, cast steelType: Single pin, 18 inch widthPitch: 6 inches ,Shoes per Vehicle: 166 (83/track)Ground Contact Length: 145.2 inches, left side

148.7 inches, right sideELECTRICAL SYSTEMNominal Voltage: 24 volts DCMain Generator: (2) 24 volts, 50 amperes, driven by power take-off




(2) 10 pound carbon dioxide, fixed(2) 4 pound carbon dioxide, portable(2) l ½ quart decontaminating apparatus




MEDIUM TANK T22

206















Total Periscopes: M4 (1), M6 (6)*Late armament and stowage, a .30 caliber AA MG was originallyspecified


ENGINEMake and Model: Ford GANType: 8 cylinder, 4 cycle, 60 degree veeCooling System: Liquid Ignition: MagnetoDisplacement:Bore and Stroke:Compression Ratio:Net Horsepower (max):Gross Horsepower (max):Net Torque (max):Gross Torque (max):Weight:Fuel: 80 octane gasolineEngine Oil:POWER TRAINClutch: Dry disc, 2 plateTransmission: Synchromesh, 5 speeds forward, 1 reverse

Gear Ratios: 1st 7.554:1 4th 1.108:12nd 3.105:1 5th 0.733:13rd 1.768:1 reverse 5.646:1

Steering: Controlled differentialBevel Gear Ratio: 3.53:1 Steering Ratio: 1.515:1

Brakes: Mechanical, external contractingFinal Drive: Spur gear Gear Ratio: 2.84:1Drive Sprocket: At rear of vehicle with 13 teeth










PERFORMANCEMaximum Speed: Sustained, level road 25 miles/hourMaximum Tractive Effort: TE at stall 57,600 pounds


MEDIUM TANK T22E1

207

4 men254 inches240 inches240 inches

14 inches123 inches95 inches

102 inches19 inches77 inches69 inches

estimated 68,000 poundsestimated 63,000 pounds

13.2hp/ton14.7 hp/ton14.0 psi

GENERAL DATACrew:Length: Gun forward, over sandshieldsLength: Gun to rear, over sandshieldsLength: Over sandshields, w/o gunGun Overhang: Gun forwardWidth: Over sandshieldsHeight: Over mg mountTread:Ground Clearance:Fire Height:Turret Ring Diameter: (inside)Weight, Combat Loaded:Weight, Unstowed:Power to Weight Ratio: Net

GrossGround Pressure: Zero penetrationARMORType: Turret, cast homogeneous steel; Hull, rolled and cast homogen-





Front 3.5 inches 0 degreesSides 2.5 inches 0 degreesRear 2.5 inches 0 degreesTop 1.0 inches 90 degrees

ARMAMENTPrimary: 75mm Gun M3 in Mount M34 in turret

Traverse: Hydraulic and manual 360 degreesTraverse Rate: (max) 15 seconds/360 degreesElevation: Manual +15 to -10 degreesFiring Rate: (max) 20 rounds/minuteLoading System: Automatic, hydraulicStabilizer System: Elevation only




Periscope M4 Azimuth Indicator M19with Telescope Gunner's Quadrant MlM38 Elevation Quadrant M9

Vision Devices: Direct IndirectDriver Hatch Periscope M6 (2)Asst. Driver Hatch Periscope M6 (2)Commander Hatch and Periscope M6 (1)

pistol portGunner Hatch Periscope M4 (1)

Total Periscopes: M4 (1), M6 (5)Total Pistol Ports: Hull (0), Turret (1)

*Late armament and stowage, a .30 caliber AA MG was originallyspecified


ENGINEMake and Model: Ford GANType: 8 cylinder, 4 cycle, 60 degree veeCooling System: Liquid Ignition: MagnetoDisplacement:Bore and Stroke:Compression Ratio:Net Horsepower (max):Gross Horsepower (max):Net Torque (max):Gross Torque (max):Weight:Fuel: 80 octane gasolineEngine Oil:POWER TRAINClutch: Dry disc, 2 plateTransmission: Synchromesh, 5 speeds forward, 1 reverse

Gear Ratios: 1st 7.554:1 4th 1.108:12nd 3.105:1 5th 0.733:13rd 1.768:1 reverse 5.646:1

Steering: Controlled differentialBevel Gear Ratio: 3.53:1 Steering Ratio: 1.515:1

Brakes: Mechanical, external contractingFinal Drive: Spur gear Gear Ratio: 2.84:1Drive Sprocket: At rear of vehicle with 13 teeth












MEDIUM TANK T23, Pilot #2





Sides 2.0 inches 0 degreesRear 1.5 inches 0 to 30 degreesTop 0.75 inches 90 degreesFloor, Front 1.0 inches 90 degrees




Traverse: Hydraulic and manual 360 degreesTraverse Rate: (max) 15 seconds/360 degreesElevation: Manual +25 to -10 degreesFking Rate: (max) 20 rounds/minuteLoading System: ManualStabilizer System: Elevation only

Secondary :(1) .30 caliber MG M1919A4 flexible AA mount on turret*(1) .30 caliber MG M1919A4 coaxial w/76mm gun in turret(1) .30 caliber MG M1919A4 in bow mountProvision for (1) .45 caliber SMG M1928A1

AMMUNITION75 rounds 76mm 12 hand grenades450 rounds .45 caliber7000 rounds .30 caliber


Telescope T92 Azimuth Indicator M19Periscope M4 Gunner's Quadrant Mlwith telescope Elevation Quadrant M9



*Early armament and stowage, .30 caliber AA MG later replaced by a.50 caliber weapon


ENGINEMake and Model: Ford GANType: 8 cylinder, 4 cycle, 60 degree veeCooling System: Liquid Ignition: MagnetoDisplacement:Bore and Stroke:Compression Ratio:Net Horsepower (max):Gross Horsepower (max):Net Torque (max):Gross Torque (max):Weight:Fuel: 80 octane gasolineEngine Oil:POWER TRAINTransmission: Electric drive with speed infinitely variable both forward

and reverseSteering: ElectricBrakes: ElectricFinal Drive: Spur gear Gear Ratio: 5.31:1Drive Sprocket: At rear of vehicle with 13 teeth

Pitch Diameter: 25.038 inchesRUNNING GEARSuspension: Vertical volute spring

12 wheels in 6 bogies (3 bogies/track)Tire Size: 20 x 9 inches6 track return rollers (1 at rear of each bogie)Adjustable idler at front of each trackIdler Size: 22 x 9 inches



ELECTRICAL SYSTEMNominal Voltage: 24 volts DCBattery Charging Generator: 24 volts, 300 amperes, driven by power

take-off from main engineAuxiliary Generator: 24 volts, 50 amperes, driven by the auxiliary





Per Cent of Vehicle Weight: TE/W 77.2 per centMaximum Grade: 60 per centMaximum Trench: 7.5 feetMaximum Vertical Wall: 24 inchesMaximum Fording Depth: 48 inchesMinimum Turning Circle: (diameter) pivotCruising Range: Roads approx. 150 miles

208

MEDIUM TANK T23

GENERAL DATACrew: 5 menLength: Gun forward, over sandshields 297.5 inchesLength: Gun to rear, over sandshields 253.8 inchesLength: Over sandshields, w/o gun 236.9 inchesGun Overhang: Gun forward 60.6 inchesWidth: Over sandshields 122.5 inchesHeight: To top of cupola 98.8 inchesTread: 102 inchesGround Clearance: 19.1 inchesFire Height: 77 inchesTurret Ring Diameter: (inside) 69 inchesWeight, Combat Loaded: 75,311 poundsWeight, Unstowed: 68,200 poundsPower to Weight Ratio: Net 11.9 hp/ton




Sides, Front 2.0 inches 0 degreesRear 1.5 inches 0 degrees

Rear 1.5 inches 0 to 30 degreesTop 0.75 inches 90 degreesFloor, Front 1.0 inches 90 degrees


Gun Shield 3.5 inches 0 degreesFront 3.0 inches 0 degreesSides 2.5 inches 0 to 13 degreesRear 2.5 inches 0 degreesTop 1.0 inches 90 degrees

ARMAMENTPrimary: 76mm Gun M1A1 in Mount M62 (T80) in turret


Secondary:(1) .50 caliber MG HB M2 flexible AA mount on turret(1) .30 caliber MG M1919A4 coaxial w/76mm gun in turret(1) .30 caliber MG M1919A4 in bow mount(1) 2 inch Mortar M3 (smoke) fixed in turretProvision for (4) .45 caliber SMG M3Provision for (1) .30 caliber Carbine Ml

AMMUNITION66 rounds 76mm 12 rounds 2 in. (smoke)300 rounds .50 caliber 12 hand grenades600 rounds .45 caliber5000 rounds .30 caliber


Telescope M71D Azimuth Indicator M19Periscope M4A1 Gunner's Quadrant Mlwith Telescope M47 Elevation Quadrant M9

Vision Devices: Direct IndirectDriver Hatch Periscope M6 (2)Asst. Driver Hatch Periscope M6 (2)Commander Vision cupola Periscope M6 (1)

and hatchGunner None Periscope M4A1 (1)Loader Hatch and Periscope M6 (1)

pistol portTotal Periscopes: M4A1 (1), M6 (6)Total Pistol Ports: Hull (0), Turret (1)Vision Cupolas: (1) w/6 vision blocks on turret top


ENGINEMake and Model: Ford GANType: 8 cylinder, 4 cycle, 60 degree veeCooling System: Liquid Ignition: MagnetoDisplacement:Bore and Stroke:Compression Ratio:Net Horsepower (max):Gross Horsepower (max) :Net Torque (max):Gross Torque (max):Weight:Fuel: 80 octane gasolineEngine Oil:POWER TRAINTransmission: Electric drive with speed infinitely variable both forward

and reverseSteering: ElectricBrakes: Electric and mechanical BendixFinal Drive: Spur gear Gear Ratio: 5.31:1Drive Sprocket: At rear of vehicle with 13 teeth

Pitch Diameter: 25.038 inchesRUNNING GEARSuspension: Vertical volute spring

12 wheels in 6 bogies (3 bogies/track)Tire Size: 20 x 9 inches6 track return rollers ( 1 at rear of each bogie)Adjustable idler at front of each trackIdler Size: 22 x 9 inches







(2) 10 pound carbon dioxide, fixed(2) 4 pound carbon dioxide, portable(2) l ½ quart decontaminating apparatus


Per Cent of Vehicle Weight: TE/W 74.4 per centMaximum Grade: 60 per centMaximum Trench: 7.5 feetMaximum Vertical Wall: 24 inchesMaximum Fording Depth: 48 inchesMinimum Turning Circle: (diameter) pivotCruising Range: Roads approx. 100 miles

209

MEDIUM TANK T23E3

210

GENERAL DATACrew: 5 menLength: Gun forward, over sandshields 306 inchesLength: Gun to rear, over sandshields 253.8 inchesLength: Over sandshields, w/o gun 244.4 inchesGun Overhang: Gun forward 62 inchesWidth: Over sandshields 128 inchesHeight: To top of cupola 100.6 inchesTread: 105 inchesGround Clearance: 17.6 inchesFire Height: 78 inchesTurret Ring Diameter: (inside) 69 inchesWeight, Combat Loaded: 79,390 poundsWeight, Unstowed: 72,000 poundsPower to Weight Ratio: Net 11.3 hp/ton





















12 individually sprung dual road wheels (6/track)Tire Size: 26 x 4.3 inches10 dual track return rollers (5/track)Dual compensating idler at front of each trackIdler Tire Size: 26 x 4.3 inchesShock absorbers fitted on first 2 and last 2 road wheels on each side

Tracks: Center guide, cast steelType: Single pin, 19 inch widthPitch: 6 inchesShoes per Vehicle: 164 (82/track)Ground Contact Length: 148.3 inches, left side

152.3 inches, right sideELECTRICAL SYSTEMNominal Voltage: 24 volts DCBattery Charging Generator: 24 volts, 200 amperes, driven by power



only) on shelf in front of loaderInterphone: (part of radio) 5 stationsFlag Set M238, Panel Set AP50A, SpotlightFlares: 3 each, M17, M18, Ml9, and M21 (command tanks only)Ground Signals Projector M4 (command tanks only)FIRE AND GAS PROTECTION



Per Cent of Vehicle Weight: TE/W 70.5 per centMaximum Grade: 60 per centMaximum Trench: 8 feetMaximum Vertical Wall: 36 inchesMaximum Fording Depth: 48 inchesMinimum Turning Circle: (diameter) pivotCruising Range: Roads approx. 100 miles

MEDIUM TANK T23 HVSS

GENERAL DATACrew: 5 menLength: Gun forward, over sandshields 308 inchesLength: Gun to rear, over sandshields 264 inchesLength: Over sandshields, w/o gun 237 inchesGun Overhang: Gun forward 71 inchesWidth: Over sandshields 137 inchesHeight: To top of cupola 98 inchesTread: 108 inchesGround Clearance: 18 inchesFire Height: 76 inchesTurret Ring Diameter: (inside) 69 inchesWeight, Combat Loaded: 82,000 poundsWeight, Unstowed: 75,000 poundsPower to Weight Ratio: Net 11.0 hp/ton

Gross 12.2 hp/tonGround Pressure: Zero penetration ll.8 psiARMORType: Turret, cast homogeneous steel; Hull, rolled and cast homogen-









Secondary:(1) .50 caliber MG HB M2 flexible AA mount on turret(1) .30 caliber MG M1919A4 coaxial w/76mm gun in turret(1) .30 caliber MG M1919A4 in bow mount(1) 2 inch Mortar M3 (smoke) fixed in turretProvision for (4) .45 caliber SMG M3Provision for (1) .30 caliber Carbine M1











12 dual wheels in 6 bogies (3 bogies/track)Tke Size: 20 x 6.25 inches4 dual track return rollers (2/track)6 single track return rollers (3/track)Dual adjustable idler at front of each trackIdler Tire Size: 22 x 6.25 inchesShock absorbers fitted on each bogie

Tracks: Center guide, T80Type: (T80) Double pin, 23 inch widthPitch: 6 inchesShoes per Vehicle: 158 (79/track)Ground Contact Length: 151 inches








211

MEDIUM TANK T25, Püot #2

GENERAL DATACrew: 5 menLength: Gun forward, over sandshields 312 inchesLength: Gun to rear, over sandshields 270 inchesLength: Over sandshields, w/o gun 237 inchesGun Overhang: Gun forward 75 inchesWidth: Over sandshields 137 inchesHeight: To top of cupola 108 inchesTread: 108 inchesGround Clearance: 18 inchesFire Height: 77 inchesTurret Ring Diameter: (inside) 69 inchesWeight, Combat Loaded: 84,210 poundsWeight, Unstowed: 78,810 poundsPower to Weight Ratio: Net 10.9 hp/ton







Gun Shield 3.5 inches 0 degreesFront 3.0 inches 0 degreesSides 2.5 inches 0 to 8 degreesRear 2.5 inches 0 to 5 degreesTop 1.0 inches 90 degrees

ARMAMENTPrimary: 90mm Gun M3 (T7) in Mount T99 in turret

Traverse: Hydraulic and manual 360 degreesTraverse Rate: (max) 15 seconds/360 degreesElevation: Manual +20 to -10 degreesFiring Rate: (max) 8 rounds/minuteLoading System: ManualStabilizer System: None




Telescope M71C Azimuth Indicator M19Periscope M8A1 Gunner's Quadrant Mlwith Telescope T121 Elevation Quadrant M9








12 dual wheels in 6 bogies (3 bogies/track)Tire Size: 20 x 6.25 inches4 dual track return rollers (2/track)6 single track return rollers (3/track)Dual adjustable idler at front of each trackIdler Tire Size: 22 x 6.25 inchesShock absorbers fitted on each bogie

Tracks: Center guide, T66 and T80Type: (T66) Single pin, 23 inch width

(T80) Double pin, 23 inch widthPitch: 6 inchesShoes per Vehicle: 158 (79/track)Ground Contact Length: 149 inches







Short periods, level 34.5 miles/hourMaximum Tractive Effort: TE at stall 56,000 pounds


212

MEDIUM TANK T25E1

213

GENERAL DATACrew: 5 menLength: Gun forward, over pintle 323.3 inchesLength: Gun to rear, over sandshields 268.6 inchesLength: Over ss and pintle, w/o gun 247.8 inchesGun Overhang: Gun forward 75.5 inchesWidth: Over sandshields 127.0 inchesHeight: To top of cupola 109.4 inchesTread: 105 inchesGround Clearance: 17.2 inchesFire Height: 78 inchesTurret Ring Diameter: (inside) 69 inchesWeight, Combat Loaded: 77,590 poundsWeight, Unstowed: 70,000 poundsPower to Weight Ratio: Net 11.6 hp/ton





Rear, Upper 1.5 inches 10 degreesLower 0.75 inches 62 degrees

Top 0.875 inches 90 degreesFloor, Front 1.0 inches 90 degrees



ARMAMENTPrimary: 90mm Gun M3 (T7) in Mount T99 in turret


Secondary:(1) .50 caliber MG HB M2 flexible AA mount on turret(1) .30 caliber MG M1919A4 coaxial w/90mm gun in turret(1) .30 caliber MG M1919A4 in bow mount(1) 2 inch Mortar M3 (smoke) fixed in turretProvision for (5) .45 caliber SMG M3





and hatchGunner None Periscope M8A1 (1)Loader Hatch Periscope M6 (1)

Total Periscopes: M8A1 (1), M6 (6)Vision Cupolas: (1) w/6 vision blocks on turret top

1100 cubic inches5.4 x 6 inches7.5:1450 hp at 2600 rpm500 hp at 2600 rpm950 ft-lb at 2200 rpm1040 ft-lb at 2200rpm1414 lb, dry202 gallons32 quarts

ENGINEMake and Model: Ford GAFType: 8 cylinder, 4 cycle, 60 degree veeCooling System: Liquid Ignition: MagnetoDisplacement:Bore and Stroke:Compression Ratio:Net Horsepower (max):Gross Horsepower (max):Net Torque (max):Gross Torque (max):Weight:Fuel: 80 octane gasolineEngine Oil:POWER TRAINTransfer Case: Planetary reduction gears

Gear Ratio: 1.377:1 engine to transmissionTransmission: Torqmatic, 3 speeds forward, 1 reverse

Torque Converter Ratio: Varies from 1:1 to 4.8:1Gear Ratios: 1st 1:1 3rd 0.244:1




12 individually sprung dual road wheels (6/track)Tire Size: 26 x 4.3 inches10 dual track return rollers (5/track)Dual compensating idler at front of each trackIdler Tire Size: 26 x 4.3 inchesShock absorbers fitted on first 2 and last 2 road wheels on each side

Tracks: Center guide, cast steelType: Single pin, 19 inch widthPitch: 6 inchesShoes per Vehicle: 164 (82/track)Ground Contact Length: 148.3 inches, left side

152.3 inches, right sideELECTRICAL SYSTEMNominal Voltage: 24 volts DCGenerator: (1) 24 volts, 150 amperes, belt driven by either the main

engine or the auxiliary engineBattery: (2) 12 volts in seriesCOMMUNICATIONSRadio: SCR 610 in rear of turretInterphone: RC 99, 4 stationsFlag Set M238, Panel Set AP50A, SpotlightFIRE AND GAS PROTECTION




Per Cent of Vehicle Weight: TE/W 68.3 per centMaximum Grade: 60 per centMaximum Trench: 8 feetMaximum Vertical Wall: 46 inchesMaximum Fording Depth: 48 inchesMinimum Turning Circle: (diameter) 40 feetCruising Range: Roads approx. 110 miles

MEDIUM TANK T26

214

GENERAL DATACrew: 5 menLength: Gun forward, over sandshields 318.5 inchesLength: Gun to rear, over sandshields 270.0 inchesLength: Over sandshields, w/o gun 244.4 inchesGun Overhang: Gun forward 74.1 inchesWidth: Over sandshields 138 inchesHeight: To top of cupola 109 inchesTread: 110 inchesGround Clearance: 17.2 inchesFire Height: 78 inchesTurret Ring Diameter: (inside) 69 inchesWeight, Combat Loaded: 95,100 poundsWeight, Unstowed: 89,700 poundsPower to Weight Ratio: Net 9.5 hp/ton

Gross 10.5 hp/tonGround Pressure: Zero penetration 12.9psiARMORType: Turret, cast homogeneous steel; Hull, rolled and cast homogen-







ARMAMENTPrimary: 90mm Gun M3 (T7) in Mount T99E1 in turret




FIRE CONTROL AND VISION EQUIPMENTPrimary Weapon: Direct Indkect









12 individually sprung dual road wheels (6/track)Tire Size: 26 x 6 inches10 dual track return rollers (5/track)Dual compensating idler at front of each trackIdler Tire Size: 26 x 6 inchesShock absorbers fitted on first 2 and last 2 road wheels on each side

Tracks: Center guide, T81 and T80E1Type: (T81) Single pin, 24 inch width

(T80E1) Double pin, 23 inch widthPitch: 6 inchesShoes per Vehicle: 164 (82/track)Ground Contact Length: 151.5 inches, left side

155.5 inches, right sideELECTRICAL SYSTEMNominal Voltage: 24 volts DCBattery Charging Generator: 24 volts, 200 amperes, driven by power








MEDIUM TANK T26E1

GENERAL DATACrew: 5 menLength: Gun forward, over pintle 324.6 inchesLength: Gun to rear, over sandshields 269 inchesLength: Over ss and pintle, w/o gun 249.1 inchesGun Overhang: Gun forward 75.5 inchesWidth: Over sandshields 138.3 inchesHeight: To top of cupola 109.4 inchesTread: 110 inchesGround Clearance: 17.2 inchesFire Height: 78 inchesTurret Ring Diameter: (inside) 69 inchesWeight, Combat Loaded: 87,350 poundsWeight, Unstowed: 81,300 poundsPower to Weight Ratio: Net 10.3 hp/ton









ARMAMENTPrimary: 90mm Gun M3 (T7) in Mount T99E1 in turret


Secondary:(1) .50 caliber MG HB M2 flexible AA mount on turret(1) .30 caliber MG M1919A4 coaxial w/90mm gun in turret(1) .30 caliber MG M1919A4 in bow mount(1) 2 inch Mortar M3 (smoke) fixed in turretProvision for (5) .45 caliber SMG M3





and hatchGunner None Periscope M8A1 (1)Loader Hatch Periscope M6 (1)

Total Periscopes: M8A1 (1), M6 (6)Vision Cupolas: (1) w/6 vision blocks on turret top









Tracks: Center guide, T81 cast steelType: (T81) Single pin, 24 inch widthPitch: 6 inchesShoes per Vehicle: 164 (82/track)Ground Contact Length: 148.3 inches, left side


engine or the auxiliary engineBattery: (2) 12 volts in seriesCOMMUNICATIONSRadio: SCR 610 in rear of turretInterphone: RC 99, 4 stationsFlag Set M238, Panel Set AP50A, SpotlightFIRE AND GAS PROTECTION





215

MEDIUM TANK M45 (T26E2)

GENERAL DATACrew: 5 menLength: Howitzer forward, over muffler 256.7 inchesLength: Howitzer to rear, over muffler and ss 254.3 inchesLength: over ss and muffler, w/o howitzer 254.3 inchesGun Overhang: Howitzer forward 2.4 inchesWidth: Over sandshields 138.3 inchesHeight: Over mg Mount 110.9 inchesTread: 110 inchesGround Clearance: 18.8 inchesFire Height: 80 inchesTurret Ring Diameter: (inside) 69 inchesWeight, Combat Loaded: 93,000 poundsWeight, Unstowed: 86,000 poundsPower to Weight Ratio: Net 9.7 hp/ton








Howitzer Shield 8.0 inches 0 degreesFront 5.0 inches 0 degreesSides 5.0 to 3.0 inches 0 to 8 degreesRear 2.5 inches 0 to 5 degreesTop 1.0 inches 90 degrees

ARMAMENTPrimary: 105mm Howitzer M4 in Mount M71 (T117) in turret


Secondary:(1) .50 caliber MG HB M2 flexible AA mount on turret(1) .30 caliber MG M1919A4 coaxial w/105mm howitzer in turret(1) .30 caliber MG M1919A4 in bow mountProvision for (5) .45 caliber SMG M3Provision for (1) .30 caliber Carbine M2 w/grenade launcher


FIRE CONTROL AND VISION EQUIPMENT*Primary Weapon: Direct Indkect

Telescope M76G Azimuth Indicator M20Periscope M10D Elevation Quadrant M9Elbow Telescope M62


and hatchGunner None Periscope M10D (1)Loader Hatch and Periscope M13 (1)

pistol portTotal Periscopes: M10D (1), M13 (3), M15 (1); In addition the follow-

ing spares are carried, M10D (1), M13 (4)Total Pistol Ports: Hull (0), Turret (1)Vision Cupolas: (1) w/6 vision blocks on turret top

*Late production vision devices, drivers' auxiliary periscopes eliminated






Bevel Gear Ratio: 3.53:1 Steering Ratio: 1.79:1Brakes: Mechanical, 3 shoe, reverse anchorFinal Drive: Spur gear Gear Ratio: 3.95:1Drive Sprocket: At rear of vehicle with 13 teeth






engine or the auxiliary engineBattery: (2) 12 volts in seriesCOMMUNICATIONSRadio: SCR 508 or 528 in rear of turret; SCR 506 (command tanks

only) on shelf in front of loader; AN/VRC 3 in rear of turret onsome tanks (infantry communication)

Interphone: (part of radio) 5 stationsFlag Set M238, Panel Set AP50A, SpotlightFlares: 3 each, M17, M18, M19, and M21 (command tanks only)Ground Signals Projector M4 (command tanks only)FIRE AND GAS PROTECTION





216

MEDIUM TANK M26 (T26E3)

217

GENERAL DATACrew: 5 menLength: Gun forward, over pintle 340.5 inchesLength: Gun to rear, over sandshields 285 inchesLength: Over ss and pintle, w/o gun 249.1 inchesGun Overhang: Gun forward 91.4 inchesWidth: Over sandshields 138.3 inchesHeight: To top of cupola 109.4 inchesTread: 110 inchesGround Clearance: 17.2 inchesFire Height: 78 inchesTurret Ring Diameter: (inside) 69 inchesWeight, Combat Loaded: 92,355 poundsWeight, Unstowed: 84,850 poundsPower to Weight Ratio: Net 9.7 hp/ton









ARMAMENTPrimary: 90mm Gun M3 (T7) in Mount M67 (T99E2) in turret


Secondary:(1) .50 caliber MG HB M2 flexible AA mount on turret(1) .30 caliber MG M1919A4 coaxial w/90mm gun in turret(1) .30 caliber MG M1919A4 in bow mountProvision for (5) .45 caliber SMG M3Provision for (1) .30 caliber Carbine M2 w/grenade launcher



Telescope M71C Azimuth Indicator M19Periscope M10F Gunner's Quadrant MlPeriscope M4A1, spare Elevation Quadrant M9


and hatchGunner None Periscope M10F (1)Loader Hatch and Periscope M6 (1)

pistol port

Total Periscopes: M10F (1), M6 (6)Total Pistol Ports: Hull (0), Turret (1)Vision Cupolas: (1) w/6 vision blocks on turret top












engine or the auxiliary engineBattery: (2) 12 volts in seriesCOMMUNICATIONSRadio: SCR 508 or 528 in rear of turret; SCR 506,(command tanks







MEDIUM TANK T26E4

218

GENERAL DATACrew: 5 menLength: Gun forward, over pintle 406 inchesLength: Gun to rear, over sandshields 348 inchesLength: Over ss and pintle, w/o gun 249.1 inchesGun Overhang: Gun forward 157 inchesWidth: Over sandshields 138.3 inchesHeight: To top of cupola 109.4 inchesTread: 110 inchesGround Clearance : 17.2 inchesFire Height: 78 inchesTurret Ring Diameter: (inside) 69 inchesWeight, Combat Loaded: 96,000 poundsWeight, Unstowed: 88,000 poundsPower to Weight Ratio: Net 9.4 hp/ton








Gun Shield 4.5 inches 0 degreesFront 4.0 inches 0 degreesSides 3.0 inches 0 to 8 degreesRear 3.0 inches plus 0 to 5 degrees

counterweightTop 1.0 inches 90 degrees

ARMAMENTPrimary: 90 mm Gun T15E2 in Mount Tl 19 in turret




FIRE CONTROL AND VISION EQUIPMENT*Primary Weapon: Direct Indirect

Telescope M71E4 Azimuth Indicator M200Periscope M10E4 Elevation Quadrant M9


and hatchGunner None Periscope M10E4 (1)Loader Hatch and Periscope Ml3 (1)

pistol portTotal Periscopes: M10E4 (1), M13 (3), M15 (1); In addition the follow-

ing spares are carried, M10E4 (1), M13 (4)Total Pistol Ports: Hull (0), Turret (1)Vision Cupolas: (1) w/6 vision blocks on turret top




















MEDIUM TANK T26E5

GENERAL DATACrew: 5 menLength: Gun forward, over pintle 340.5 inchesLength: Gun to rear, over sandshields 285 inchesLength: Over ss and pintle, w/o gun 249.1 inchesGun Overhang: Gun forward 91.4 inchesWidth: Over sandshields 148 inchesHeight: To top of cupola 109.4 inchesTread: With 23 inch tracks 110 inches

With 28 inch tracks 115 inchesGround Clearance: 17.2 inchesFire Height: 78 inchesTurret Ring Diameter: (inside) 69 inchesWeight, Combat Loaded: 102,300 poundsWeight, Unstowed: 94,500 poundsPower to Weight Ratio: Net 8.8 hp/ton

Gross 9.7 hp/tonGround Pressure: Zero penetration, 23" trk 14.5 psi

28"trk 11.9 psiARMORType: Turret, cast homogeneous steel; Hull, rolled and cast homogen-





Top 1.5 to 0.875 inches 90 degreesFloor, Front 1.0 inches 90 degrees



ARMAMENTPrimary: 90mm Gun M3 (T7) in Mount M67 (T99E2) in turret





Telescope M83C Azimuth Indicator M19Periscope M10F Elevation Quadrant M9



pistol portTotal Periscopes: M10F (1), M13 (3), M15 (1); In addition the follow-

ing spares are carried, M10F (1), M13 (4)Total Pistol Ports: Hull (0), Turret (1)Vision Cupolas: (1) w/6 vision blocks on turret top


1100 cubic inches5.4 x 6 inches7.5:1450 hp at 2600 rpm500 hp at 2600 rpm950 ft-lb at 2200 rpm1040 ft-lb at 2200rpm1414 lb, dry183 gallons32 quarts







12 individually sprung dual road wheels (6/track)Tire Size: 26 x 6 inches10 dual track return rollers (5/track)Dual compensating idler at front of each trackIdler Tire Size: 2 6 x 6 inchesShock absorbers fitted on first 2 and last 2 road wheels on each side

Tracks: Center guide, T80E1 w/5 inch end connectorsType: (T80E1) Double pin, 23 inch widthTotal Track Width: 28 inches with end connectorsPitch: 6 inchesShoes per Vehicle: 164 (82/track)Ground Contact Length: 151.5 inches, left side








Per Cent of Vehicle Weight: TE/W 66.5 per centMaximum Grade: 60 per centMaximum Trench: 8 feetMaximum Vertical Wall: 46 inchesMaximum Fording Depth: 48 inchesMaximum Turning Circle: (diameter) 60 feetCruising Range: Roads approx. 80 miles

219

MEDIUM TANK M26E1

GENERAL DATACrew: 5 menLength: Gun forward, over pintle 376 inchesLength: Gun to rear, over sandshields 321 inchesLength: Over ss and pintle, w/o gun 249.1 inchesGun Overhang: Gun forward 127 inchesWidth: Over sandshields 138.3 inchesHeight: To top of cupola 109.4 inchesTread: 110 inchesGround Clearance: 17.2 inchesFire Height: 78 inchesTurret Ring Diameter: (inside) 69 inchesWeight, Combat Loaded: estimated 94,600 poundsWeight, Unstowed: estimated 87,000 poundsPower to Weight Ratio: Net 9.5 hp/ton








Gun Shield 4.5 inches 0 degreesFront 4.0 inches 0 degreesSides 3.0 inches 0 to 8 degreesRear 3.0 inches plus 0 to 5 degrees

counterweightTop 1.0 inches 90 degrees

ARMAMENTPrimary: 90mm Gun T54 in Mount T126 in turret


Secondary:(1) .50 caliber MG HB M2 flexible AA mount on turret(1) .50 caliber MG HB M2 coaxial w/90mm gun in turret(1) .30 caliber MG M1919A4 in bow mountProvision for (5) .45 caliber SMG M3

AMMUNITION41 rounds 90mm 12 hand grenades1100 rounds .50 caliber (estimated)900 rounds .45 caliber2500 rounds .30 caliber (estimated)


Telescope M71E4 Azimuth Indicator M20Periscope M10E4 Elevation Quadrant M9


and hatchGunner None Periscope M10E4 (1)Loader Hatch and Periscope M13 (1)

pistol portTotal Periscopes: M10E4 (1), M13 (3), M15 (1); In addition the follow-

ing spares are carried, M10E4 (1), M13 (4)Total Pistol Ports: Hull (0), Turret (1)Vision Cupolas: (1) w/6 vision blocks on turret top




















220

MEDIUM TANK M26E2

5 men335 inches285 inches244 inches

91 inches138 inches109 inches110 inches

17 inches78 inches69 inches

estimated 94,000 poundsestimated 86,500 pounds

15.0 hp/ton17.2 hp/ton13.3 psi

GENERAL DATACrew:Length: Gun forwardLength: Gun to rearLength: Without gunGun Overhang: Gun forwardWidth: Over sandshieldsHeight: To top of cupolaTread:Ground Clearance:Fire Height:Turret Ring Diameter: (inside)Weight, Combat Loaded:Weight, Unstowed:Power to Weight Ratio: Net

GrossGround Pressure: Zero penetrationARMORType: Turret, cast homogeneous steel; Hull, rolled and cast homogen-








ARMAMENTPrimary: 90mm Gun M3 in Mount M67 in turret

Traverse: Hydraulic and Manual 360 degreesTraverse Rate: (max) 15 seconds/360 degreesElevation: Manual +20 to -10 degreesFiring Rate: (max) 8 rounds/minuteLoading System: ManualStabilizer System: None




Telescope M71C Azimuth Indicator M19Periscope M10F Gunner's Quadrant M1Periscope M4A1, spare Elevation Quadrant M9



pistol portTotal Periscopes: M10F (1), M6 (6)Total Pistol Ports: Hull (0), Turret (1)Vision Cupolas: (1) w/6 vision blocks on turret top

ENGINEMake and Model: Continental AV-1790-1 or -3Type: 12 cylinder, 4 cycle, 90 degree veeCooling System: Air Ignition: -1 battery, -3 magnetoDisplacement: 1790 cubic inchesBore and Stroke: 5.75 x 5.75 inchesCompression Ratio: 6.5:1Net Horsepower (max): 704 hp at 2800 rpmGross Horsepower (max): 810 hp at 2800 rpmNet Torque (max): 1440 ft-lb at 2200 rpmGross Torque (max): 1610 ft-lb at 2200 rpmWeight: 2380 lb, dryFuel: 80 octane gasoline 190 gallonsEngine Oil: 72 quartsPOWER TRAINTransmission: Cross-drive, 2 ranges forward, 1 reverse

Single stage hydraulic converterStall Multiplication: 5.2:1Overall Usable Ratios: low 15.5 reverse 20.6

high 7.1Steering Control: Mechanical wobble stick

Steering Rate: 5.7 RPMBrakes: Multiple discFinal Drive: Spur gear Gear Ratio: 3.95:1Drive Sprocket: At rear of vehicle with 13 teeth





155.5 inches, right sideELECTRICAL SYSTEMNominal Voltage: 24 volts DCMain Generator: (1) 24 volts, 175 amperes, driven by power take-off


engineBattery: (4) 12 voltsCOMMUNICATIONSRadio: SCR 508 or 528 in rear of turret; SCR 506 (command tanks





Per Cent of Vehicle Weight: TE/W 86.2 per centMaximum Grade: 60 per centMaximum Trench: 8 feetMaximum Vertical Wall: 46 inchesMaximum Fording Depth: 48 inchesMinimum Turning Circle: (diameter) pivotCruising Range: Roads 175 miles

221

8 inch HOWITZER MOTOR CARRIAGE T84

GENERAL DATACrew: 8 menLength: Overall 273 inchesWidth: Over sandshields 136.3 inchesHeight: Overall 125 inchesTread: 110 inchesGround Clearance: 17.7 inchesWeight, Combat Loaded: estimated 82,000 poundsWeight, Unstowed: 76,660 poundsPower to Weight Ratio: Net 11.0 hp/ton

Gross 12.2 hp/tonGround Pressure: Zero penetration ll.8 psiARMORType: Rolled homogeneous steel, welded assemblyHull Thickness: Actual Angle w/Vertical


Sides, Upper 0.5 inches 0 degreesLower 1.0 inches 0 degrees

Rear 0.5 inches 30 degreesTop 0.5 inches 90 degreesFloor, Front 1.0 inches 90 degrees

Rear 0.5 inches 90 degreesHowitzer Shield 0.5 inches 40 degreesARMAMENTPrimary: 8 inch Howitzer Ml in mount at rear of hull

Traverse: Manual 15 degrees each sideElevation: Manual +60 to -5 degreesFiring Rate: (max) 1 round/minuteLoading System: Manual

Secondary:Provision for (1) .30 caliber Rifle M1903A3Provision for (7) .30 caliber Carbines M2Provision for (1) Grenade Launcher M8

AMMUNITION6 rounds 8 inch 12 hand grenades10 rifle grenades

FIRE CONTROL AND VISION EQUIPMENTPrimary Weapon: Telescope M69E2

Panoramic Telescope M12Gunner's Quadrant M1

Vision Devices: Direct IndirectDriver Vision cupola None

and hatchAsst. Driver Vision cupola None

and hatchVision Cupolas: (2) w/4 vision blocks on hull roof






Bevel Gear Ratio: 3.53:1 Steering Ratio: 1.79:1Brakes: Mechanical, 3 shoe, reverse anchorFinal Drive: Spur gear Gear Ratio: 3.95:1Drive Sprocket: At front of vehicle with 13 teeth


12 individually sprung dual road wheels (6/track)Tire Size: 26 x 6 inches10 dual track return rollers (5/track)Dual compensating idler at rear of each trackIdler Tire Size: 26 x 6 inchesShock absorbers fitted on first 2 and last 2 road wheels on each side


(T80E1) Double pin, 23 inch widthPitch: 6 inchesShoes per Vehicle: 164 (82/track)Ground Contact Length: 149.6 inches, right side

153.4 inches, left sideELECTRICAL SYSTEMNominal Voltage: 24 volts DCGenerator: (1) 24 volts, 75 amperes, driven by power take-off from

main engineBattery: (2) 12 volts in seriesCOMMUNICATIONSRadio: SCR 610 or 628 in left sponson compartmentInterphone: RC 99, 4 stationsFIRE AND GAS PROTECTION

(2) 10 pound carbon dioxide, fixed(2) 4 pound carbon dioxide, portable(1) 1 ½ quart decontaminating apparatus



222

8 inch GUN MOTOR CARRIAGE T93

GENERAL DATACrew: 8 menLength: Overall 447 inchesWidth: With 23 inch tracks, w/o ss 133 inches

With 28 inch tracks, w/o ss 143 inchesHeight: Overall 126.9 inchesTread: With 23 inch tracks 110 inches

With 28 inch tracks 115 inchesGround Clearance: 18.7 inchesWeight, Combat Loaded: 132,600 poundsWeight, Unstowed: estimated 128,000 poundsPower to Weight Ratio: Net 6.8 hp/ton


28" trk 13.2 psiARMORType: Rolled homogeneous steel, welded assemblyHull Thickness: Actual Angle w/Vertical

Front, Upper 1.0 inches 64 to 72 degreesLower 1.0 inches 40 degrees


Rear 0.5 inches 10 degreesTop 0.875 inches 90 degreesFloor 1.0 inches 90 degrees

Gun Shield 0.5 inches 30 degreesARMAMENTPrimary: 8 inch Gun Ml in Mount T31 at rear of hull

Traverse: Manual 12 degrees each sideElevation: Manual +65 to 0 degreesFiring Rate: (max) 1 round/minuteLoading System: Manual


AMMUNITION10 rifle grenades 12 hand grenades

FIRE CONTROL AND VISION EQUIPMENTPrimary Weapon: Elbow Telescope M16A1E1

Panoramic Telescope M12Gunner's Quadrant M1



and hatchVision Cupolas: (2) w/3 vision blocks on front hull plate






Bevel Gear Ratio: 3.53:1 Steering Ratio: 1.79:1Brakes: Mechanical, 3 shoe, reverse anchorFinal Drive: Planetary gear Gear Ratio: 6.25:1Drive Sprocket: At front of vehicle with 13 teeth



Tracks: Center guide, T80E1 w/5 inch end connectorsType: (T80E1) Double pin, 23 inch widthTotal Track Width: 28 inches with end connectorsPitch: 6 inchesShoes per Vehicle: 188 (94/track)Ground Contact Length: 180 inches, average



engineBattery: (2) 12 volts in seriesCOMMUNICATIONSInterphone: RC 99, 4 stationsRemote Control Equipment: RC 261FIRE AND GAS PROTECTION

(2) 10 pound carbon dioxide, fixed(2) 4 pound carbon dioxide, portable(2) 1 ½ quart decontaminating apparatus




223

240mm HOWITZER MOTOR CARRIAGE T92

224

GENERAL DATACrew: 8 menLength: Overall 382 inchesWidth: With 23 inch tracks, w/o ss 133 inches

With 28 inch tracks, w/o ss 143 inchesHeight: Overall 126.9 inchesTread: With 23 inch tracks 110 inches

With 28 inch tracks 115 inchesGround Clearance: 18.7 inchesWeight, Combat Loaded: 127,500 poundsWeight, Unstowed: estimated 123,000 poundsPower to Weight Ratio: Net 7.1 hp/ton


28" trk 12.6 psiARMORType: Rolled homogeneous steel, welded assemblyHull Thickness: Actual Angle w/Vertical

Front, Upper 1.0 inches 64 to 72 degreesLower 1.0 inches 40 degrees


Rear 0.5 inches 10 degreesTop 0.875 inches 90 degreesFloor 1.0 inches 90 degrees

Howitzer Shield 0.5 inches 30 degreesARMAMENTPrimary: 240mm Howitzer Ml in Mount T30 at rear of hull

Traverse: Manual 12 degrees each sideElevation: Manual +65 to 0 degreesFiring Rate: (max) 1 round/minuteLoading System: Manual


AMMUNITION10 rifle grenades 12 hand grenades

FIRE CONTROL AND VISION EQUIPMENTPrimary Weapon: Elbow Telescope M16A1E1

Panoramic Telescope M12Gunner's Quadrant Ml



and hatchVision Cupolas: (2) w/3 vision blocks on front hull plate

ENGINEMake and Model: Ford GAFType: 8 cylinder, 4 cycle, 60 degree veeCooling System: Liquid Ignition: MagnetoDisplacement: 1100 cubic inchesBore and Stroke: 5.4 x 6 inchesCompression Ratio: 7.5:1Net Horsepower (max): 450 hp at 2600 rpmGross Horsepower (max): 500 hp at 2600 rpmNet Torque (max): 950 ft-lb at 2200 rpmGross Torque (max): 1040 ft-lb at 2200 rpmWeight: 1414 lb, dryFuel: 80 octane gasoline 245 gallonsEngine Oil: 32 quartsPOWER TRAINTransfer Case: Planetary reduction gears




Bevel Gear Ratio: 3.53:1 Steering Ratio: 1.79:1Brakes: Mechanical, 3 shoe, reverse anchorFinal Drive: Planetary gear Gear Ratio: 6.25:1Drive Sprocket: At front of vehicle with 13 teeth



Tracks: Center guide, T80E1 w/5 inch end connectorsType: (T80E1) Double pin, 23 inch widthTotal Track Width: 28 inches with end connectorsPitch: 6 inchesShoes per Vehicle: 188 (94/track)Ground Contact Length: 180 inches, average



engineBattery: (2) 12 volts in seriesCOMMUNICATIONSInterphone: RC 99, 4 stationsRemote Control Equipment: RC 261FIRE AND GAS PROTECTION





CARGO CARRIER T31

GENERAL DATACrew: 6 menLength: Overall 252 inchesWidth: Over sandshields 136.3 inchesHeight: Overall 106 inchesTread: 110 inchesGround Clearance: 17.7 inchesWeight, Combat Loaded: estimated 80,000 poundsWeight, Unstowed: estimated 50,000 poundsPower to Weight Ratio: Net 11.3 hp/ton

Gross 12.5 hp/tonGround Pressure: Zero penetration 11.5 psiARMORType: Rolled homogeneous steel, welded assemblyHull Thickness: Actual Angle w/Vertical





Rear 0.5 inches 90 degreesARMAMENT

(1) .50 caliber MG HB M2 on ring mt. over asst. driverProvision for (1) .30 caliber Rifle M1903A3Provision for (5) .30 caliber Carbines M2Provision for (1) Grenade Launcher M8

AMMUNITION*60 rounds 8 inch howitzer 12 hand grenades600 rounds .50 caliber10 rifle grenades

VISION EQUIPMENTDirect Indirect

Driver Vision cupola Noneand hatch

Asst. Driver Vision cupola Noneand hatch

Vision Cupolas: (2) w/4 vision blocks on hull roof

*Alternate stowage arrangements for ammunition for the 240mmhowitzer, 8 inch gun, 155mm gun, or 155mm howitzer


ENGINEMake and Model: Ford GAFType: 8 cylinder, 4 cycle, 60 degree veeCooling System: Liquid Ignition: MagnetoDisplacement:Bore and Stroke:Compression Ratio:Net Horsepower (max):Gross Horsepower (max):Net Torque (max) :Gross Torque (max):Weight:Fuel: 80 octane gasolineEngine Oil:POWER TRAINTransfer Case: Planetary reduction gears




Bevel Gear Ratio: 3.53:1 Steering Ratio: 1.79:1Brakes: Mechanical, 3 shoe, reverse anchorFinal Drive: Spur gear Gear Ratio: 3.95:1Drive Sprocket: At front of vehicle with 13 teeth




(T80E1) Double pin, 23 inch widthPitch: 6 inchesShoes per Vehicle: 164 (82/track)Ground Contact Length: 149.6 inches, right side

153.4 inches, left sideELECTRICAL SYSTEMNominal Voltage: 24 volts DCGenerator: (1) 24 volts, 75 amperes, driven by power take-off from

main engineBattery: (2) 12 volts in seriesCOMMUNICATIONSRadio: SCR 610 or 628 in left sponson compartmentInterphone: RC 99, 4 stationsFIRE AND GAS PROTECTION




225

TANK RECOVERY VEHICLE T12

226

GENERAL DATACrew: 6 menLength: Boom to rear, travel position 298 inchesLength: Without boom 263 inchesBoom Overhang: Boom to rear 35 inchesWidth: Over sandshields 148 inchesHeight: Boom in travel position 134 inchesTread:-With 23 inch tracks 110 inches

With 28 inch tracks 115 inchesGround Clearance : 18 inchesWeight, Combat'Loaded: estimated 90,000 poundsWeight, Unstowed: estimated 80,000 poundsPower to Weight Ratio: Net 10.0 hp/ton


28" trk 10.5 psiARMORType: Turret, rolled homogeneous steel; Hull, rolled and cast homo-

geneous steel; Welded assemblyHull Thickness: Actual Angle w/Vertical






Front 1.25 inches 0 degreesSides 1.25 inches 0 degreesRear 1.25 inches 0 degreesTop 1.0 inches 90 degrees

ARMAMENT(1) .50 caliber MG HB M2 on ring mount on turret top(1) .30 caliber MG M1919A4 in bow mountProvision for (2) .45 caliber SMG M3Provision for (4) .30 caliber Carbines M2Provision for (1) 2.36 inch Rocket Launcher M9A1Provision for (1) Grenade Launcher M8

AMMUNITION550 rounds .50 caliber 10 rockets 2.36 inch360 rounds .45 caliber 10 rifle grenades2000 rounds .30 caliber 12 hand grenades

VISION EQUIPMENTDirect Indirect

Driver Hatch Periscope M6 (2)Asst. Driver Hatch Periscope M6 (2)Commander Vision cupola Periscope M6 (1)

and hatchTotal Periscopes: M6 (5)Vision Cupolas: (1) w/6 vision blocks on turret top

ENGINEMake and Model: Ford GAFType: 8 cylinder, 4 cycle, 60 degree veeCooling System: Liquid Ignition: MagnetoDisplacement: 1100 cubic inchesBore and Stroke: 5.4 x 6 inchesCompression Ratio: 7.5:1Net Horsepower (max): 450 hp at 2600 rpmGross Horsepower (max): 500 hp at 2600 rpmNet Torque (max) : 950 ft-lb at 2200 rpmGross Torque (max): 1040 ft-lb at 2200 rpmWeight: 1414 lb, dryFuel: 80 octane gasoline 202 gallonsEngine Oil: 32 quartsPOWER TRAINTransfer Case: Planetary reduction gears







Tracks: Center guide, T80E1 w/5 inch end connectorsType: (T80E1) Double pin, 23 inch widthTotal Track Width: 28 inches with end connectorsPitch: 6 inchesShoes per Vehicle: 164 (82/track)Ground Contact Length: 151.5 inches, left side


engine or the auxiliary engineBattery: (2) 12 volts in seriesCOMMUNICATIONSRadio: SCR 508 or 528 on shelf in turretInterphone: (part of radio) 5 stations plus RC 298 external interphone

extensionFlag Set M238, Panel Set AP50A, SpotlightFIRE AND GAS PROTECTION

(2) 10 pound carbon dioxide, fixed(2) 4 pound carbon dioxide, portable(2) 1 quart carbon tetrachloride, portable(1) 1½ quart decontaminating apparatus




WEAPON DATA SHEETS

The general characteristics and performance datafor the major armament mounted on the T20 seriesvehicles are included in the following pages. To avoidconfusion, caliber lengths are quoted for each weaponusing both the U.S. (bore length only) and the Ger-man method (muzzle to rear face of breech). Otherdimensions are defined in the sketch below.

Official nomenclature in effect during the periodof greatest service is used to describe each type ofammunition. Since the terminalogy changed occasion-ally, a standard nomenclature is added in parenthesis.An explanation of the standard terms, which are usedseparately and in combination, is given below:

AP Armor piercing, uncappedAPBC Armor piercing with ballistic cap, with-

out armor piercing capAPCBC Armor piercing with armor piercing

cap and ballistic capAPCR Armor piercing, composite rigidCP Concrete piercingHE High explosiveHEAT High explosive antitank, hollow charge-T Tracer

All armor plate angles quoted in the data sheetsare measured between a vertical plane and the platesurface. This is illustrated by angle a in the figurebelow. The armor plate penetration performance ofthe various projectiles is usually quoted for a 30degree angle of obliquity. This angle is defined as theangle between a line perpendicular to the armor plateand the projectile path. This is shown by angle ßbelow.

In regard to armor penetration, it should benoted that the values obtained at 30 degrees obliquitydo not necessarily indicate the relative performanceof these projectiles at other angles. For example, the90 mm AP T33 is approximately equal to the APCM82 at 30 degrees, but at the 55 degree angle of thePanther's front plate, the latter fails completely whilethe T33 will penetrate at ranges up to 1100 yards.Against this type of high obliquity target, the mono-bloc shot was also much more effective than theHVAP or APCR type projectile.

227

75mm Gun M3

Carriage and Mount

Length of Chamber (to rifling)Length of RiflingLength of Chamber (to projectile base)Travel of Projectile in BoreLength of BoreDepth of Breech RecessLength, Muzzle to Rear Face of BreechAdditional Length, Muzzle Brake, etc.Overall LengthDiameter of BoreChamber CapacityWeight, TubeTotal WeightType of Breechblock

RiflingAmmunitionPrimerWeight, Complete Round

Weight, Projectile

Maximum Powder PressureMaximum Rate of FireMuzzle Velocity

Muzzle Energy of Projectile, KE= ½ MV2

Rotational energy is neglected andvalues are based on long tons (2,240pounds)

Maximum Range (independent of mount)

Penetration Performance

APC M61

AP M72

APC M61

AP M72

Range

Range

Medium Tank M3 series in Mount Ml, Medium Tank M4 series in Mounts M34 and M34A1,Medium Tank M7 in Mount M47, Medium Tank T22E1 in Mount M34 with an automatic loader,Assault Tank T14 in Mount M34A114.4 inches96.2 inches12.96 inches (APC M61), 11.5 inches (HE M48)97.67 inches (APC M61), 99.1 inches (HE M48)110.63 inches, 37.5 calibers7,75 inches118.38 inches, 40.1 calibersNone118.38 inches2.95 inches88.05 cubic inches (APC M61), 80.57 cubic inches (HE M48)611 pounds893 poundsSemiautomatic sliding wedge. Gun mounted so breechblock slides vertically in Mount Ml, at 45degrees in Mount M47, and horizontally in Mounts M34 and M34A124 grooves, uniform right-hand twist, one turn in 25.59 calibers (slope 7 degrees)FixedPercussionAPC M61 Projectile (APCBC/HE-T) 19.92 poundsAP M72 Shot (AP-T) 18.80 poundsHE M48 Shell (HE), Supercharge 19.56 poundsHE M48 Shell (HE), Normal 18.80 poundsHC BI M89 Shell, Smoke 9.83 poundsAPC M61 Projectile (APCBC/HE-T) 14.96 poundsAP M72 Shot (AP-T) 13.94 poundsHE M48 Shell (HE) 14.70 poundsHC BI M89 Shell, Smoke 6.61 pounds38,000 psi20 rounds/minuteAPC M61 Projectile (APCBC/HE-T) 2,030 ft/secAP M72 Shot (AP-T) 2,030 ft/secHE M48 Shell (HE), Supercharge 1,980 ft/secHE M48 Shell (HE), Normal 1,520 ft/secHC BI M89 Shell, Smoke 850 ft/secAPC M61 Projectile (APCBC/HE-T) 427 ft-tonsAP M72 Shot (AP-T) 398 ft-tonsHE M48 Shell (HE), Supercharge 400 ft-tonsHE M48 Shell (HE), Normal 235 ft-tonsAPC M61 Projectile (APCBC/HE-T) 14,000 yardsAP M72 Shot (AP-T) 10,650 yardsHE M48 Shell (HE), Supercharge 14,000 yardsHE M48 Shell (HE), Normal 11,400 yardsHC BI M89 Shell, Smoke approx. 1,500 yardsHomogeneous Armor at 30 degrees obliquity500 yards 1,000 yards 1,500 yards2.6 inches(66mm)3.0 inches(76mm)

2.4 inches(60mm)2.5 inches(63mm)

Face-Hardened Armor at 30 degrees obliquity500 yards 1,000 yards2.9 inches 2.6 inches(74mm) (67mm)2.6 inches 2.1 inches(66mm) (5 3mm)

2.2 inches(55mm)2.0 inches(51mm)

1,500 yards2.4 inches(60mm)1.6 inches(41mm)



228

Carriage and Mount

Length of Chamber (to rifling)Length of RiflingLength of Chamber (to projectile base)Travel of Projectile in BoreLength of BoreDepth of Breech RecessLength, Muzzle to Rear Face of BreechAdditional Length, Muzzle Brake, etc.Overall LengthDiameter of BoreChamber CapacityWeight, Tube (without muzzle brake)Weight, Complete (without muzzle brake)Weight, Muzzle Brake M2Total WeightType of Breechblock

Rifling

AmmunitionPrimerWeight, Complete Round

Weight, Projectile





RangePenetration Performance

APC M62

HVAP M93

AP M79

Penetration values are for the M1A1 gun. A

76mm Gun M1, M1A1, M1A1C, and M1A2

Medium Tank M4 series in Mount M62, Medium Tanks T20, T20E3, T22, and T23-2 in Mount T79,Medium Tanks T23 and T23E3 in Mount T80, Motor Carriages M18, T86, and T86E1 in Mount M122.46 inches133.54 inches20.7 inches (square base projectiles)135.3 inches (square base projectiles)156.00 inches, 52.0 calibers7.75 inches163.75 inches, 54.6 calibers11.6 inches, Muzzle Brake M2 on M1A1C and M1A2163.75 inches (Ml, MlAl), 175.4 inches (M1A1C, M1A2)3.000 inches142.6 cubic inches (APC M62), 140.50 inches (HE M42A1)870 pounds (M1), 940 pounds (M1A1)1,141 pounds (M1), 1,206 pounds (M1A1C), 1,231 pounds (M1A2)62 pounds1,141 pounds (M1), 1,268 pounds (M1A1C), 1,293 pounds (M1A2)Semiautomatic sliding wedge. Gun mounted so breechblock slides horizontally in Mounts M62,T79, and T80, and at 45 degrees in Mount Ml28 grooves, uniform right-hand twist, one turn in 40 calibers (M1, M1A1, M1A1C) or 32 calibers(M1A2)FixedPercussionAPC M62 Projectile (APCBC/HE-T) 24.80 poundsHVAP M93 Shot (APCR-T) 18.91 poundsAP M79 Shot (AP-T) 24.24 poundsHE M42A1 Shell (HE) 22.23 poundsHC BI M88 Shell, Smoke 13.43 poundsAPC M62 Projectile (APCBC/HE-T) 15.44 poundsHVAP M93 Shot (APCR-T) 9.40 poundsAP M79 Shot (AP-T) 15.00 poundsHE M42A1 Shell (HE) 12.87 poundsHC BI M88 Shell, Smoke 7.38 pounds43,000 psi20 rounds/minuteAPC M62 Projectile (APCBC/HE-T) 2,600 ft/secHVAP M93 Shot (APCR-T) 3,400 ft/secAP M79 Shot (AP-T) 2,600 ft/secHE M42A1 Shell (HE) 2,700 ft/secHC BI M88 Shell, Smoke 900 ft/secAPC M62 Projectile (APCBC/HE-T) 724 ft-tonsHVAP M93 Shot (APCR-T) 7 5 3 ft-tonsAP M79 Shot (AP-T) 703 ft-tonsHE M42A1 Shell (HE) 650 ft-tonsAPC M62 Projectile (APCBC/HE-T) 16,100 yardsHVAP M93 Shot (APCR-T) 13,100 yardsAP M79 Shot (AP-T) 12,770 yardsHE M42A1 Shell (HE) 14,200 yardsHC BI M88 Shell, Smoke (at 12 degrees) 2,000 yardsHomogeneous Armor at 30 degrees obliquity500 yards 1,000 yards 1,500 yards 2,000 yards3.7 inches 3.5 inches 3.2 inches 3.0 inches(93mm) (88mm) (82mm) (75mm)6.2 inches 5.3 inches 4.6 inches 3.9 inches(157mm) (135mm) (116mm) (98mm)4.3 inches 3.6 inches 3.0 inches 2.5 inches(109mm) (92mm) (76mm) (64mm)

slight increase for APC is obtained with the M1A2 at the longer ranges

229

90mm Gun M3

Carriage and Mount

Length of Chamber (to rifling)Length of RiflingLength of Chamber (to projectile base)Travel of Projectile in BoreLength of BoreDepth of Breech RecessLength, Muzzle to Rear Face of BreechAdditional Length, Muzzle Brake, etc.Overall LengthDiameter of BoreChamber CapacityWeight, Complete (without muzzle brake)Weight, Muzzle Brake M3Total WeightType of BreechblockRiflingAmmunitionPrimerWeight, Complete Round

Weight, Projectile





Penetration PerformanceRange

APC M82 (2,650)

APC M82 (2,800)

HVAP M304 (T30E16)

AP T33

Medium Tanks T25 and T25E1 in Mount T99, Medium Tanks T26 and T26E1 in Mount T99E1,Medium Tanks M26 (T26E3), M26E2, and T26E5 in Mount M67 (T99E2), Motor Carriage M36series in Mount M4 (T8). This weapon mounted experimentally in the Heavy Tank T1E1 andMotor Carriages M10 and M1824.8 inches152.4 inches20.8 inches (boat-tailed projectiles)156.4 inches (boat-tailed projectiles)177.15 inches, 50.0 calibers9.00 inches186.15 inches, 52.5 calibers16.0 inches, Muzzle Brake M3 on late production202.2 inches with muzzle brake3.543 inches300 cubic inches2,300 pounds149.5 pounds2,450 poundsSemiautomatic, vertical sliding wedge32 grooves, uniform right-hand twist, one turn in 32 calibersFixedPercussionAPC M82 Projectile (APCBC/HE-T) early 42.75 poundsAPC M82 Projectile (APCBC/HE-T) late 43.87 poundsHVAP T30E16 Shot (APCR-T) 37.13 poundsAP T33 Shot (APBC-T) 43.82 poundsHE M71 Shell (HE) 41.93 poundsAPC M82 Projectile (APCBC/HE-T) 24.11 poundsHVAP M304 (T30E16) Shot (APCR-T) 16.80 poundsAP T33 Shot (APBC-T) 24.06 poundsHE M71 Shell (HE) 23.29 pounds38,000 psi8 rounds/minuteAPC M82 Projectile (APCBC/HE-T) early 2,650 ft/secAPC M82 Projectile (APCBC/HE-T) late 2,800 ft/secHVAP M304 (T30E16) Shot (APCR-T) 3,350 ft/secAP T33 Shot (APBC-T) 2,800 ft/secHE M71 Shell (HE) 2,700 ft/secAPC M82 Projectile (APCBC/HE-T) early 1,174 ft-tonsAPC M82 Projectile (APCBC/HE-T) late 1,310 ft-tonsHVAP M304 (T30E16) Shot (APCR-T) 1,307 ft-tonsAP T33 Shot (APBC-T) 1,310 ft-tonsHE M71 Shell (HE) 1,177 ft-tonsAPC M82 Projectile (APCBC/HE-T) early 20,400 yardsAPC M82 Projectile (APCBC/HE-T) late 21,400 yardsHVAP M304 (T30E16) Shot (APCR-T) 15,700 yardsAP T33 Shot (APBC-T) 21,000 yardsHE M71 Shell (HE) 19,560 yardsHomogeneous Armor at 30 degrees obliquity500 yards 1,000 yards 1,500 yards 2,000 yards4.7 inches 4.4 inches 4.1 inches 3.8 inches(120mm) (112mm) (104mm) (96mm)5.1 inches 4.8 inches 4.5 inches 4.2 inches(129mm) (122mm) (114mm) (106mm)8.7 inches 7.9 inches 7.0 inches 6.1 inches(221 mm) (199mm) (176mm) (156mm)4.7 inches 4.6 inches 4.5 inches 4.3 inches(119mm) (117mm) (114mm) (109mm)

230

Carnage and MountLength of Chamber (to rifling)Length of RiflingLength of Chamber (to projectile base)Travel of Projectile in BoreLength of BoreDepth of Breech RecessLength, Muzzle to Rear Face of BreechAdditional Length, Muzzle Brake, etc.Overall LengthDiameter of BoreChamber CapacityWeight, Complete (without muzzle brake)Weight, Muzzle Brake M3Total WeightType of BreechblockRiflingAmmunitionPrimerWeight, Complete Round

Weight, Projectile




Maximum Range (independent of mount)Penetration Performance

RangeAP T43

HVAP T44

90mmGun T15E2

Medium Tank T26E4 in Mount T119, Heavy Tanks T32 and T32E1 in Mount T11940.7 inches207.2 inches36.7 inches (boat-tailed projectiles)211.2 inches (boat-tailed projectiles)247.9 inches, 70.0 calibers9.0 inches256.9 inches, 72.6 calibers16.0 inches, Muzzle Brake M3272.9 inches3.543 inches488 cubic inches (estimated)3,270 pounds150 pounds3,420 poundsSemiautomatic, vertical sliding wedge32 grooves, uniform right-hand twist, one turn in 32 calibersSeparatedPercussionAP T43 Shot (APBC-T)HVAP T44 Shot (APCR-T)HE T42 Shell (HE)AP T43 Shot (APBC-T)HVAP T44 Shot (APCR-T)HE T42 Shell (HE)41,500 psi4 rounds/minuteAP T43 Shot (APBC-T)HVAP T44 Shot (APCR-T)HE T42 Shell (HE)AP T43 Shot (APBC-T)HVAP T44 Shot (APCR-T)HE T42 Shell (HE)

51.2 pounds44 pounds50.4 pounds24.06 pounds16.70 pounds23.3 pounds

HE T42 Shell (HE)Homogeneous Armor at 30 degrees obliquity500 yards 1,000 yards 1,500 yards5.2 inches 5.0 inches 4.9 inches(132mm) (127mm) (124mm)9.6 inches 8.7 inches 7.7 inches(244mm) (221mm) (196mm)

3,200 ft/sec3,750 ft/sec3,200 ft/sec1,711 ft-tons1,628 ft-tons1,654 ft-tons

27,000 yards

2,000 yards4.8 inches(122mm)

6.8 inches(173mm)

231

90mm Gun T54

Carriage and MountLength of Chamber (to rifling)Length of RiflingLength of Chamber (to projectile base)Travel of Projectile in BoreLength of BoreDepth of Breech RecessLength, Muzzle to Rear Face of BreechAdditional Length, Muzzle Brake, etc.Overall LengthDiameter of BoreChamber CapacityWeight, Complete (without muzzle brake)Weight, Muzzle BrakeTotal WeightType of BreechblockRiflingAmmunitionPrimerWeight, Complete Round

Weight, Projectile




Maximum Range (independent of mount)Penetration Performance

RangeAP

HVAP

Medium Tank M26E1 in Mount T12624.6 inches209.184 inches21.8 inches212 inches233.8 inches, 66.6 calibers8.45 inches242.25 inches, 68.4 calibers6.75 inches, Muzzle Brake M3E2249.0 inches3.543 inches465 cubic inches3,400 pounds80 pounds3,480 poundsSemiautomatic, vertical sliding wedge32 grooves, uniform right-hand twist, one turn in 32 calibersFixedPercussionAP Shot (APBC-T)HVAP Shot (APCR-T)HE Shell (HE)AP Shot (APBC-T)HVAP Shot (APCR-T)HE Shell (HE)40,000 psi6 rounds/minuteAP Shot (APBC-T)HVAP Shot (APCR-T)HE Shell (HE)AP Shot (APBC-T)HVAP Shot (APCR-T)HE Shell (HE)

HE Shell (HE)Homogeneous Armor at 30 degrees obliquity500 yards 1,000 yards 1,500 yards5.2 inches 5.0 inches 4.9 inches(132mm) (127mm) (124mm)9.6 inches 8.7 inches 7.7 inches(244mm) (221mm) (196mm)

approx.approx.approx.

49424824.116.723.3

poundspoundspoundspoundspoundspounds

3,200 ft/sec3,750 ft/sec3,200 ft/sec1,711 ft-tons1,628 ft-tons1,654 ft-tons

27,000 yards

2,000 yards4.8 inches(122mm)

6.8 inches(173mm)

232

Carriage and Mount

Length of Chamber (to rifling)Length of RiflingLength of Chamber (to projectile base)Travel of Projectile in BoreLength of BoreDepth of Breech RecessLength, Muzzle to Rear Face of BreechAdditional Length, Muzzle Brake, etc.Overall LengthDiameter of BoreChamber CapacityWeight, TubeTotal WeightType of BreechblockRiflingAmmunitionPrimerWeight, Complete Round

Weight, Projectile






105mm Howitzer M4

Medium Tank M4 series in Mount M52, Medium Tank M45 (T26E2) in Mount M71 (T117), MotorCarriage M37 in Mount M515.03 inches78.02 inches11.38 inches (boat-tailed projectiles)81.67 inches (boat-tailed projectiles)93.05 inches, 22.5 calibers8.25 inches101.3 inches, 24.5 calibersNone101.3 inches4.134 inches153.80 cubic inches973 pounds1,140 poundsManually operated, horizontal sliding wedge36 grooves, uniform right-hand twist, one turn in 20 calibersSemifixed, variable charge except for HEAT M67PercussionHE M1 Shell (HE) 42.07 poundsHEAT M67 Shell (HEAT-T) 36.85 poundsWP M60 Shell, Smoke 43.77 poundsHC BE M84 Shell, Smoke 41.94 poundsHE M1 Shell (HE) 33.00 poundsHEAT M67 Shell (HEAT-T) 29.22 poundsWP M60 Shell, Smoke 34.31 poundsHC BE M84 Shell, Smoke 32.87 pounds28,000 psi8 rounds/minuteHE M1 Shell (HE) maximum charge 1,550 ft/secHEAT M67 Shell (HEAT-T) 1,250 ft/secWP M60 Shell, Smoke maximum charge 1,550 ft/secHC BE M84 Shell, Smoke maximum charge 1,550 ft/secHE M1 Shell (HE) maximum charge 555 ft-tonsHEAT M67 Shell (HEAT-T) 317 ft-tons

HE M1 Shell (HE) maximum charge 12,205 yardsHEAT M67 Shell (HEAT-T) 8,590 yardsWP M60 Shell, Smoke maximum charge 12,150 yardsHC BE M84 Shell, Smoke maximum charge 12,205 yardsHomogeneous Armor at 0 degrees obliquity, HEAT M67, 4.0 inches at any range

233

Carriage and MountLength of Chamber (to rifling)Length of RiflingLength of Chamber (to projectile base)Travel of Projectile in BoreLength of BoreDepth of Breech RecessLength, Muzzle to Rear Face of BreechAdditional Length, Breech MechanismOverall LengthDiameter of BoreChamber CapacityTotal WeightType of BreechblockRiflingAmmunitionPrimerWeight, Complete Round

Weight, Projectile



Rotational energey is neglected andvalues are based on long tons (2,240pounds)



8 inch Howitzer M1 and M2

Towed Carriage Ml, Motor Carriage T84, Motor Carriage M43 in Mount M1735.2 inches164.8 inches26.2 inches (HE M106)173.83 inches (HE M106)200.0 inches, 25.0 calibers9.6 inches209.59 inches, 26.2 calibers6.4 inches216.0 inches8.00 inches1,527 cubic inches (HE M106)10,240 poundsStepped thread interrupted screw, horizontal swing64 grooves, uniform right-hand twist, one turn in 25 calibersSeparate LoadingPercussionHE M106 Shell (HE) with Charge M2HE Mk1A1 Shell (HE) with Charge M1HE M106 Shell (HE)HE Mk1A1 Shell (HE)33,000 psi1 round/minuteHE M106 Shell (HE) with Charge M2HE Mk1A1 Shell (HE) with Charge M1HE Ml06 Shell (HE) with Charge M2

228.19 pounds213.19 pounds200.00 pounds200.00 pounds

1,950 ft/sec1,339 ft/sec5,272 ft-tons

HE M106 Shell (HE) with Charge M2 18,510 yardsHE Mk1A1 Shell (HE) with Charge M1 11,170 yardsReinforced Concrete at 0 degrees obliquity, HE M106 with CP Fuse M78; 5.5 feet at 1,000 yards,4.7 feet at 3,000 yards, 4.0 feet at 5,000 yards, 3.2 feet at 10,000 yards, 3.1 feet at 15,000 yards

234

Carriage and MountLength of Chamber (to rifling)Length of RiflingLength of Chamber (to projectile base)Travel of Projectile in BoreLength of BoreDepth of Breech RecessLength, Muzzle to Rear Face of BreechAdditional Length, Breech MechanismOverall LengthDiameter of BoreChamber CapacityTotal WeightType of BreechblockRiflingAmmunitionPrimerWeight, Complete Round

Weight, Projectile






8 inch Gun M1

Towed Carriage M2, Motor Carriage T93 in Mount T3171.8 inches328.15 inches61.4 inches (HE M103)338.58 inches (HE M103)400.0 inches, 50.0 calibers9.5 inches409.5 inches, 51.2 calibers5.0 inches (estimated)415 inches (estimated)8.00 inches5,156 cubic inches (HE M103)29,800 poundsStepped thread interrupted screw, vertical swing64 grooves, uniform right-hand twist, one turn in 25 calibersSeparate LoadingPercussionHE M103 Shell (HE) maximum chargeMk14 Projectile, Common (APBC/HE) max. chg.HE M103 Shell (HE)Mk14 Projectile, Common (APBC/HE)38,000 psi1 round/minuteHE M103 Shell (HE) maximum chargeMk14 Projectile, Common (APBC/HE) max. chg.HE M103 Shell (HE) maximum charge

346 pounds366 pounds240 pounds260 pounds

2,850 ft/sec2,750 ft/sec

13,514 ft-tons

HE M103 Shell (HE) maximum charge 35,630 yardsMk14 Projectile, Common (APBC/HE) max. chg. 32,500 yardsReinforced Concrete at 0 degrees obliquity, HE M103 with CP Fuse M78; 5.2 feet at 15,000yards, 4.5 feet at 19,000 yards, 3.8 feet at 23,000 yards, 3.7 feet at 27,000 yards

235

240mm Howitzer M1

Carriage and Mount Towed Carriage M1, Motor Carriage T92 in Mount T30Length of Chamber (to rifling) 63.8 inchesLength of Rifling 257.69 inchesLength of Chamber (to projectile base) 53.3 inches (HE M114)Travel of Projectile in Bore 268.16 inches (HE M114)Length of Bore 321.5 inches, 34.0 calibersDepth of Breech Recess 9.5 inchesLength, Muzzle to Rear Face of Breech 331.0 inches, 35.0 calibersAdditional Length, Breech Mechanism 5.0 inches (estimated)Overall Length 336 inches (estimated)Diameter of Bore 9.45 inchesChamber Capacity 4,430.0 cubic inches (HE M114)Total Weight 25,100 poundsType of Breechblock Stepped thread interrupted screw, vertical swingRifling 68 grooves, uniform right-hand twist, one turn in 25 calibersAmmunition Separate LoadingPrimer PercussionWeight, Complete Round HE M114 Shell (HE) maximum charge 438.78 poundsWeight, Projectile HE M114 Shell (HE) 360 poundsMaximum Powder Pressure 36,000 psiMaximum Rate of Fire 1 round/minuteMuzzle Velocity HE M114 Shell (HE) maximum charge 2,300 ft/secMuzzle Energy of Projectile, KE= ½ MV2 HE M114 Shell (HE) maximum charge 13,202 ft-tons


Maximum Range (independent of mount) HE M114 Shell (HE) maximum charge 25,255 yardsPenetration Performance Reinforced Concrete at 0 degrees obliquity, HE Ml 14 with CP Fuse M78; 4.9 feet at 12,500

yards, 4.4 feet at 15,000 yards, 4.1 feet at 19,000 yards

236

Date post:	12-Apr-2020
Category:	Documents
Upload:	others
View:	0 times
Download:	0 times

VEHICLE DATA SHEETS - Star Destroyer · 2008-09-13 · VEHICLE DATA SHEETS Specifications for each...

Documents