Archer II & III Components

Lycoming O-360-A4M Engine

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Piper Archers -Carbureted-4 Cylinders -Horizontally Opposed -Naturally Aspirated

Cylinder

Rubber baffles to redirect airflow for cooling Fins for air

cooling

Magnetos

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• 2 Magnetos attached to engine in left and right positions

• Engine driven, provide power to spark plugs

Ignition leads to spark plugs

Spark plugs

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There are 8 spark Plugs

• Provides spark to the cylinders for combustion

• 2 per cylinder

• Each spark plug is powered by a different magneto for redundancy

Vacuum Pump

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Provides suction to vacuum powered instruments • Attitude Indicator• Directional Gyro

Suction gauge (Normal Range 4.8-5.2)

Auxiliary Vacuum Pump

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• Equipped on Archer III’s• Located on right upper side of firewall behind engine• Electrically driven backup vacuum source in

the event of engine driven vacuum pump failure• Activated by an “Aux Vac” Button on left hand side of panel

next to vacuum gauge

Starter

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• Located just behind the prop spinneron the 5 o’clock position in both models

• Turns propeller spinner when starting

Starter Gear

Alternator

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• Provides electrical power to the aircraft • Recharges battery • Belt driven

• Archer II - 14Vt 60 Amp Alternator• Archer III - 28Vt 70 Amp Alternator

• Archer II – Located on 7 O’clock position behind prop• Archer III – Located on 5 O’clock position

Alternator Belt

Engine Driven Fuel Pump

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• Located on back side of Engine • Pressurizes fuel system to keep a

steady flow of fuel to the engine

Electric Fuel Pump

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• Auxiliary source of fuel pressure for added redundancy so that fuel flow continues in the event of engine driven fuel pump failure

• Used during takeoff & landing

Fuel Strainer

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• Also known as the Gascolator, is the lowest point in the fuel system

• Filters sediments and debris within the fuel system• Fuel is sumped at every preflight to check for contamination

Carburetor

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• Float Type Carburetorlocated underneath engine block

• Mixes Air/Fuel before entering engine for combustion

• If needed, hot air can enter from an exhaust shroud utilizing the carb heat lever to prevent or remove any icing build up

Fuel Lines

Air Source

Air Induction

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Archer II Intake

Archer III Intake

Air entering the engine is routed through an intake that goes to an air filter prior to entering the carburetor

Cabin Heat

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• Lower inlet on front left side of cowling • When turned on, air enters the inlet and is routed into

an exhaust shroud for heating prior to entering cabin

Exhaust Shroud

Alternator Cooling Air Inlet

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• Equipped on Archer III’s• Upper inlet on front left portion of lower cowling Archer III’s• Routes air into the back of the alternator for cooling

Air Duct

Pitot-Static Mast

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• Provides both ram air and static air inputs for the pitot static instruments

• Front air port provides ram air for airspeed indicator aka pitot tube

• Lower and rear ports provides static air for the static instruments

Ram Air

Static

Static

Static Source on empennage

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• This static source only supplies static pressure to the autopilot system on board if equipped

Stall Warning

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• Small tab on leading edge of left wing

• Provides warning to the pilots of an impending stall

Ground Power Inputs

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Archer II 12 Volt Input

Archer III 24 Volt Input

Refer to Pilots Operating Handbook for Instructions

Fresh Air Inlets

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• Brings fresh air from outside into cabin

COMM Antennas

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COMM 1

If there is no COMM 2 antenna on top of the aircraft, it will be underneath

GPS Antenna

Transponder Antennas

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Type of antenna varies between aircraft regardless if it is Archer II or III

VOR Antenna

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• V Shaped antenna on top of vertical stabilizer• Used for VOR navigation

Garmin GPS Antenna

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• Flat round shaped antennas located on top of the fuselage• Receive GPS satellite signals for GPS navigation

Marker Beacons Antenna

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• Located underneath the empennage of both Archer II’s & III’s• Used during IFR approaches to let pilots know the location

of marker beacons to determine their location on an approach

ELT

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ELT Panel

Antenna

• Emergency Locator Transmitter• Located on right side of empennage • In the event of a forced landing, it will

transmit an emergency signal on 121.5 to aid search and rescue efforts

Temperature Probes

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• Provides Outside Air Temperature (OAT) indicated on a Temp. Gauge