+ All Categories
Home > Documents > STEALTH AIRCRAFTS DESIGN ASPECTS AND CONSIDERATIONS · STEALTH AIRCRAFTS DESIGN ASPECTS AND...

STEALTH AIRCRAFTS DESIGN ASPECTS AND CONSIDERATIONS · STEALTH AIRCRAFTS DESIGN ASPECTS AND...

Date post: 25-Apr-2018
Category:
Upload: truongdien
View: 262 times
Download: 12 times
Share this document with a friend
128
Artzi Dror STEALTH AIRCRAFTS DESIGN ASPECTS AND CONSIDERATIONS
Transcript
Page 1: STEALTH AIRCRAFTS DESIGN ASPECTS AND CONSIDERATIONS · STEALTH AIRCRAFTS DESIGN ASPECTS AND CONSIDERATIONS. ... The Lockheed Martin F-117 stealth fighter ... to an ideal stealth shape.

Artzi Dror

STEALTH AIRCRAFTS

DESIGN ASPECTS AND CONSIDERATIONS

Page 2: STEALTH AIRCRAFTS DESIGN ASPECTS AND CONSIDERATIONS · STEALTH AIRCRAFTS DESIGN ASPECTS AND CONSIDERATIONS. ... The Lockheed Martin F-117 stealth fighter ... to an ideal stealth shape.

Artzi Dror

These three factors can be combined to determine the completeradar cross section (�) for a target

Simplifying that expression yields the following relationship for radar cross section.

The importance of radar cross section can best be understood bylooking at an equation relating the RCS of the target to the energy received by the radar.

where S = signal energy received by the radar Pavg = average power transmitted by the radar G = gain of the radar antenna � = radar cross section of the target Ae = effective area of the radar antenna, or "aperture efficiency"tot = time the radar antenna is pointed at the target (time on target) R = range to the target

Page 3: STEALTH AIRCRAFTS DESIGN ASPECTS AND CONSIDERATIONS · STEALTH AIRCRAFTS DESIGN ASPECTS AND CONSIDERATIONS. ... The Lockheed Martin F-117 stealth fighter ... to an ideal stealth shape.

Third strongest radar return due to direct reflection of incident wave; decreases rapidly as incidence angle changes from perpendicular

Flat plate

Second strongest radar return due to double reflection of incident wave; decreases from maximum slowly with changing q and rapidly with changing f

Right dihedral corner

reflector

Strongest radar return due to triple reflection of incident wave

Square trihedral corner reflector

Comments Maximum RCS Description Geometry

Page 4: STEALTH AIRCRAFTS DESIGN ASPECTS AND CONSIDERATIONS · STEALTH AIRCRAFTS DESIGN ASPECTS AND CONSIDERATIONS. ... The Lockheed Martin F-117 stealth fighter ... to an ideal stealth shape.

Perpendicular incidence wave creates a strong but

narrow RCS peakwhere q = aspect

qint = interior dihedral

angle between two faces

Straight edge

Produces the same isotropic return in all directions

Sphere

Strong radar return as aspect (q) changes, but decreases rapidly as azimuth (f) changes

Right circular

cylinder

Comments Maximum RCS Description Geometry

Page 5: STEALTH AIRCRAFTS DESIGN ASPECTS AND CONSIDERATIONS · STEALTH AIRCRAFTS DESIGN ASPECTS AND CONSIDERATIONS. ... The Lockheed Martin F-117 stealth fighter ... to an ideal stealth shape.

Artzi Dror

B2 GEOMETRY

Page 6: STEALTH AIRCRAFTS DESIGN ASPECTS AND CONSIDERATIONS · STEALTH AIRCRAFTS DESIGN ASPECTS AND CONSIDERATIONS. ... The Lockheed Martin F-117 stealth fighter ... to an ideal stealth shape.

Artzi Dror

100 m²

15 m²

7 m²

6 m²

4 m²

3 m²

2 m²

0.75 m²

0.1 m²

0.025 m²

Page 7: STEALTH AIRCRAFTS DESIGN ASPECTS AND CONSIDERATIONS · STEALTH AIRCRAFTS DESIGN ASPECTS AND CONSIDERATIONS. ... The Lockheed Martin F-117 stealth fighter ... to an ideal stealth shape.

Artzi Dror

DETECTION RANGE

Page 8: STEALTH AIRCRAFTS DESIGN ASPECTS AND CONSIDERATIONS · STEALTH AIRCRAFTS DESIGN ASPECTS AND CONSIDERATIONS. ... The Lockheed Martin F-117 stealth fighter ... to an ideal stealth shape.

Artzi Dror

NON-STEALTHY AIRCRAFT PENETRATION

Page 9: STEALTH AIRCRAFTS DESIGN ASPECTS AND CONSIDERATIONS · STEALTH AIRCRAFTS DESIGN ASPECTS AND CONSIDERATIONS. ... The Lockheed Martin F-117 stealth fighter ... to an ideal stealth shape.

Artzi Dror

STEALTHY AIRCRAFT PENETRATION

Page 10: STEALTH AIRCRAFTS DESIGN ASPECTS AND CONSIDERATIONS · STEALTH AIRCRAFTS DESIGN ASPECTS AND CONSIDERATIONS. ... The Lockheed Martin F-117 stealth fighter ... to an ideal stealth shape.

Artzi Dror

Air to Air

Page 11: STEALTH AIRCRAFTS DESIGN ASPECTS AND CONSIDERATIONS · STEALTH AIRCRAFTS DESIGN ASPECTS AND CONSIDERATIONS. ... The Lockheed Martin F-117 stealth fighter ... to an ideal stealth shape.

Artzi Dror

Page 12: STEALTH AIRCRAFTS DESIGN ASPECTS AND CONSIDERATIONS · STEALTH AIRCRAFTS DESIGN ASPECTS AND CONSIDERATIONS. ... The Lockheed Martin F-117 stealth fighter ... to an ideal stealth shape.

Artzi Dror

Page 13: STEALTH AIRCRAFTS DESIGN ASPECTS AND CONSIDERATIONS · STEALTH AIRCRAFTS DESIGN ASPECTS AND CONSIDERATIONS. ... The Lockheed Martin F-117 stealth fighter ... to an ideal stealth shape.

Artzi Dror

Page 14: STEALTH AIRCRAFTS DESIGN ASPECTS AND CONSIDERATIONS · STEALTH AIRCRAFTS DESIGN ASPECTS AND CONSIDERATIONS. ... The Lockheed Martin F-117 stealth fighter ... to an ideal stealth shape.

Artzi Dror

Page 15: STEALTH AIRCRAFTS DESIGN ASPECTS AND CONSIDERATIONS · STEALTH AIRCRAFTS DESIGN ASPECTS AND CONSIDERATIONS. ... The Lockheed Martin F-117 stealth fighter ... to an ideal stealth shape.

Artzi Dror

Page 16: STEALTH AIRCRAFTS DESIGN ASPECTS AND CONSIDERATIONS · STEALTH AIRCRAFTS DESIGN ASPECTS AND CONSIDERATIONS. ... The Lockheed Martin F-117 stealth fighter ... to an ideal stealth shape.

Artzi Dror

Page 17: STEALTH AIRCRAFTS DESIGN ASPECTS AND CONSIDERATIONS · STEALTH AIRCRAFTS DESIGN ASPECTS AND CONSIDERATIONS. ... The Lockheed Martin F-117 stealth fighter ... to an ideal stealth shape.

Artzi Dror

Page 18: STEALTH AIRCRAFTS DESIGN ASPECTS AND CONSIDERATIONS · STEALTH AIRCRAFTS DESIGN ASPECTS AND CONSIDERATIONS. ... The Lockheed Martin F-117 stealth fighter ... to an ideal stealth shape.

Artzi Dror

Page 19: STEALTH AIRCRAFTS DESIGN ASPECTS AND CONSIDERATIONS · STEALTH AIRCRAFTS DESIGN ASPECTS AND CONSIDERATIONS. ... The Lockheed Martin F-117 stealth fighter ... to an ideal stealth shape.

Artzi Dror

Page 20: STEALTH AIRCRAFTS DESIGN ASPECTS AND CONSIDERATIONS · STEALTH AIRCRAFTS DESIGN ASPECTS AND CONSIDERATIONS. ... The Lockheed Martin F-117 stealth fighter ... to an ideal stealth shape.

Artzi Dror

T-33 medianized radar cross section

T-33 jet trainer

Page 21: STEALTH AIRCRAFTS DESIGN ASPECTS AND CONSIDERATIONS · STEALTH AIRCRAFTS DESIGN ASPECTS AND CONSIDERATIONS. ... The Lockheed Martin F-117 stealth fighter ... to an ideal stealth shape.

Artzi Dror

B-52

B-1

B-2

Page 22: STEALTH AIRCRAFTS DESIGN ASPECTS AND CONSIDERATIONS · STEALTH AIRCRAFTS DESIGN ASPECTS AND CONSIDERATIONS. ... The Lockheed Martin F-117 stealth fighter ... to an ideal stealth shape.

Artzi Dror

SR-71

Page 23: STEALTH AIRCRAFTS DESIGN ASPECTS AND CONSIDERATIONS · STEALTH AIRCRAFTS DESIGN ASPECTS AND CONSIDERATIONS. ... The Lockheed Martin F-117 stealth fighter ... to an ideal stealth shape.

Artzi DrorF-117

The Lockheed Martin F-117 stealth fighteris almost entirely covered in Radar-Absorbent Material

Page 24: STEALTH AIRCRAFTS DESIGN ASPECTS AND CONSIDERATIONS · STEALTH AIRCRAFTS DESIGN ASPECTS AND CONSIDERATIONS. ... The Lockheed Martin F-117 stealth fighter ... to an ideal stealth shape.

Artzi Dror

Page 25: STEALTH AIRCRAFTS DESIGN ASPECTS AND CONSIDERATIONS · STEALTH AIRCRAFTS DESIGN ASPECTS AND CONSIDERATIONS. ... The Lockheed Martin F-117 stealth fighter ... to an ideal stealth shape.

Artzi Dror

Lockheed version of the Have Blue Demonstratorwhich led to the F-117

Page 26: STEALTH AIRCRAFTS DESIGN ASPECTS AND CONSIDERATIONS · STEALTH AIRCRAFTS DESIGN ASPECTS AND CONSIDERATIONS. ... The Lockheed Martin F-117 stealth fighter ... to an ideal stealth shape.

Artzi Dror

MetallizedCanopy

CantedVerticals

SlopedFuselage

Sides

Top-MountedInlet

ShieldedNozzles

No ExternalWeapons

No CornerReflectors

Page 27: STEALTH AIRCRAFTS DESIGN ASPECTS AND CONSIDERATIONS · STEALTH AIRCRAFTS DESIGN ASPECTS AND CONSIDERATIONS. ... The Lockheed Martin F-117 stealth fighter ... to an ideal stealth shape.

Artzi Dror

Page 28: STEALTH AIRCRAFTS DESIGN ASPECTS AND CONSIDERATIONS · STEALTH AIRCRAFTS DESIGN ASPECTS AND CONSIDERATIONS. ... The Lockheed Martin F-117 stealth fighter ... to an ideal stealth shape.

Artzi Dror

Page 29: STEALTH AIRCRAFTS DESIGN ASPECTS AND CONSIDERATIONS · STEALTH AIRCRAFTS DESIGN ASPECTS AND CONSIDERATIONS. ... The Lockheed Martin F-117 stealth fighter ... to an ideal stealth shape.

Artzi Dror

Page 30: STEALTH AIRCRAFTS DESIGN ASPECTS AND CONSIDERATIONS · STEALTH AIRCRAFTS DESIGN ASPECTS AND CONSIDERATIONS. ... The Lockheed Martin F-117 stealth fighter ... to an ideal stealth shape.

Artzi Dror

F-117 BOMB BAY

Page 31: STEALTH AIRCRAFTS DESIGN ASPECTS AND CONSIDERATIONS · STEALTH AIRCRAFTS DESIGN ASPECTS AND CONSIDERATIONS. ... The Lockheed Martin F-117 stealth fighter ... to an ideal stealth shape.

Artzi Dror

Why Zig-Zag

Page 32: STEALTH AIRCRAFTS DESIGN ASPECTS AND CONSIDERATIONS · STEALTH AIRCRAFTS DESIGN ASPECTS AND CONSIDERATIONS. ... The Lockheed Martin F-117 stealth fighter ... to an ideal stealth shape.

Artzi Dror

Gold plated “Zig-Zag” Canopy

Special RudderHinge Line

Page 33: STEALTH AIRCRAFTS DESIGN ASPECTS AND CONSIDERATIONS · STEALTH AIRCRAFTS DESIGN ASPECTS AND CONSIDERATIONS. ... The Lockheed Martin F-117 stealth fighter ... to an ideal stealth shape.

Artzi Dror

Page 34: STEALTH AIRCRAFTS DESIGN ASPECTS AND CONSIDERATIONS · STEALTH AIRCRAFTS DESIGN ASPECTS AND CONSIDERATIONS. ... The Lockheed Martin F-117 stealth fighter ... to an ideal stealth shape.

Artzi Dror

Special Design Pitot Tubes

Page 35: STEALTH AIRCRAFTS DESIGN ASPECTS AND CONSIDERATIONS · STEALTH AIRCRAFTS DESIGN ASPECTS AND CONSIDERATIONS. ... The Lockheed Martin F-117 stealth fighter ... to an ideal stealth shape.

Artzi Dror

X-32 BOEINGRCS MODEL

47 ft LONG 36 ft WING-SPAN

RCS Measurements in Special Range

Page 36: STEALTH AIRCRAFTS DESIGN ASPECTS AND CONSIDERATIONS · STEALTH AIRCRAFTS DESIGN ASPECTS AND CONSIDERATIONS. ... The Lockheed Martin F-117 stealth fighter ... to an ideal stealth shape.

Artzi Dror

The USAF's Lockheed Martin F-117A fighters are to undergo a return-to-works programme to receive a new,

stealthier skin coating and improved cockpit instrumentation.

Play

Page 37: STEALTH AIRCRAFTS DESIGN ASPECTS AND CONSIDERATIONS · STEALTH AIRCRAFTS DESIGN ASPECTS AND CONSIDERATIONS. ... The Lockheed Martin F-117 stealth fighter ... to an ideal stealth shape.

Artzi Dror

B-2

Page 38: STEALTH AIRCRAFTS DESIGN ASPECTS AND CONSIDERATIONS · STEALTH AIRCRAFTS DESIGN ASPECTS AND CONSIDERATIONS. ... The Lockheed Martin F-117 stealth fighter ... to an ideal stealth shape.

Artzi Dror

Northrop YB-49 Flying Wing

1929 Twin Boom Wing---N1M---N9M---XP56---MX324---XP79---JB10---XB35---1947 YB49

Page 39: STEALTH AIRCRAFTS DESIGN ASPECTS AND CONSIDERATIONS · STEALTH AIRCRAFTS DESIGN ASPECTS AND CONSIDERATIONS. ... The Lockheed Martin F-117 stealth fighter ... to an ideal stealth shape.

Artzi Dror

Page 40: STEALTH AIRCRAFTS DESIGN ASPECTS AND CONSIDERATIONS · STEALTH AIRCRAFTS DESIGN ASPECTS AND CONSIDERATIONS. ... The Lockheed Martin F-117 stealth fighter ... to an ideal stealth shape.

Artzi Dror

B-2 BOMB DROP

Page 41: STEALTH AIRCRAFTS DESIGN ASPECTS AND CONSIDERATIONS · STEALTH AIRCRAFTS DESIGN ASPECTS AND CONSIDERATIONS. ... The Lockheed Martin F-117 stealth fighter ... to an ideal stealth shape.

Artzi Dror

Page 42: STEALTH AIRCRAFTS DESIGN ASPECTS AND CONSIDERATIONS · STEALTH AIRCRAFTS DESIGN ASPECTS AND CONSIDERATIONS. ... The Lockheed Martin F-117 stealth fighter ... to an ideal stealth shape.

Artzi Dror

PROTECTED HANGER FOR B-2 ENVIORONMENTAL CONTROL

Page 43: STEALTH AIRCRAFTS DESIGN ASPECTS AND CONSIDERATIONS · STEALTH AIRCRAFTS DESIGN ASPECTS AND CONSIDERATIONS. ... The Lockheed Martin F-117 stealth fighter ... to an ideal stealth shape.

Artzi Dror

Page 44: STEALTH AIRCRAFTS DESIGN ASPECTS AND CONSIDERATIONS · STEALTH AIRCRAFTS DESIGN ASPECTS AND CONSIDERATIONS. ... The Lockheed Martin F-117 stealth fighter ... to an ideal stealth shape.

Artzi Dror

Page 45: STEALTH AIRCRAFTS DESIGN ASPECTS AND CONSIDERATIONS · STEALTH AIRCRAFTS DESIGN ASPECTS AND CONSIDERATIONS. ... The Lockheed Martin F-117 stealth fighter ... to an ideal stealth shape.

Artzi Dror

Page 46: STEALTH AIRCRAFTS DESIGN ASPECTS AND CONSIDERATIONS · STEALTH AIRCRAFTS DESIGN ASPECTS AND CONSIDERATIONS. ... The Lockheed Martin F-117 stealth fighter ... to an ideal stealth shape.

Artzi Dror

��������������� ����������������� ����������

�� ���� ��������� ��� ����� � ���������������������

������ �������������� �����������������

����� �������� ����������� �������� ����������� �����

Radar-Absorbent Material

Page 47: STEALTH AIRCRAFTS DESIGN ASPECTS AND CONSIDERATIONS · STEALTH AIRCRAFTS DESIGN ASPECTS AND CONSIDERATIONS. ... The Lockheed Martin F-117 stealth fighter ... to an ideal stealth shape.

Artzi Dror

Page 48: STEALTH AIRCRAFTS DESIGN ASPECTS AND CONSIDERATIONS · STEALTH AIRCRAFTS DESIGN ASPECTS AND CONSIDERATIONS. ... The Lockheed Martin F-117 stealth fighter ... to an ideal stealth shape.

Artzi Dror

Looking from the B-2 Cockpit

Page 49: STEALTH AIRCRAFTS DESIGN ASPECTS AND CONSIDERATIONS · STEALTH AIRCRAFTS DESIGN ASPECTS AND CONSIDERATIONS. ... The Lockheed Martin F-117 stealth fighter ... to an ideal stealth shape.

Artzi Dror

PLAY

Page 50: STEALTH AIRCRAFTS DESIGN ASPECTS AND CONSIDERATIONS · STEALTH AIRCRAFTS DESIGN ASPECTS AND CONSIDERATIONS. ... The Lockheed Martin F-117 stealth fighter ... to an ideal stealth shape.

Artzi Dror

YF-22YF-23

Page 51: STEALTH AIRCRAFTS DESIGN ASPECTS AND CONSIDERATIONS · STEALTH AIRCRAFTS DESIGN ASPECTS AND CONSIDERATIONS. ... The Lockheed Martin F-117 stealth fighter ... to an ideal stealth shape.

Artzi Dror

YF-22

Page 52: STEALTH AIRCRAFTS DESIGN ASPECTS AND CONSIDERATIONS · STEALTH AIRCRAFTS DESIGN ASPECTS AND CONSIDERATIONS. ... The Lockheed Martin F-117 stealth fighter ... to an ideal stealth shape.

Artzi Dror

YF-22

Page 53: STEALTH AIRCRAFTS DESIGN ASPECTS AND CONSIDERATIONS · STEALTH AIRCRAFTS DESIGN ASPECTS AND CONSIDERATIONS. ... The Lockheed Martin F-117 stealth fighter ... to an ideal stealth shape.

Artzi Dror

F-22

Page 54: STEALTH AIRCRAFTS DESIGN ASPECTS AND CONSIDERATIONS · STEALTH AIRCRAFTS DESIGN ASPECTS AND CONSIDERATIONS. ... The Lockheed Martin F-117 stealth fighter ... to an ideal stealth shape.

Artzi DrorF-22

most of the F-22's surface is covered with a conductive metallic coating which prevents radar energyfrom penetrating the composite skin. The F-22 uses RAM around the edges of doors and control surfaces, and radar-absorbent structure (RAS) on the body, wing and tail edges.

Page 55: STEALTH AIRCRAFTS DESIGN ASPECTS AND CONSIDERATIONS · STEALTH AIRCRAFTS DESIGN ASPECTS AND CONSIDERATIONS. ... The Lockheed Martin F-117 stealth fighter ... to an ideal stealth shape.

Artzi Dror

The entire airframe of the F-22 is painted witha Boeing-developed camouflage topcoat

which suppresses the aircraft’s IR signature

Testbed Raptor 04 made its first flight with a patchwork of gray-painted RAS(Radar Absorbent Structure) edges,yellow-primered skin,metallic coating and sprayed-on RAM(Radar Absorbent Material)

Page 56: STEALTH AIRCRAFTS DESIGN ASPECTS AND CONSIDERATIONS · STEALTH AIRCRAFTS DESIGN ASPECTS AND CONSIDERATIONS. ... The Lockheed Martin F-117 stealth fighter ... to an ideal stealth shape.

Artzi Dror��������������� ��������������������������������������������������������������������������������������������� ��������������������������������������������������������������������

Page 57: STEALTH AIRCRAFTS DESIGN ASPECTS AND CONSIDERATIONS · STEALTH AIRCRAFTS DESIGN ASPECTS AND CONSIDERATIONS. ... The Lockheed Martin F-117 stealth fighter ... to an ideal stealth shape.

Artzi Dror

���������������� ��������������������������������������������������������� ����������������������������������������������������������������������������������������������������������������������!�������������������"#"���������������������������������������������!����������������������������������������������������������

����������������“$���$��%

Page 58: STEALTH AIRCRAFTS DESIGN ASPECTS AND CONSIDERATIONS · STEALTH AIRCRAFTS DESIGN ASPECTS AND CONSIDERATIONS. ... The Lockheed Martin F-117 stealth fighter ... to an ideal stealth shape.

Artzi DrorF-22

Assembly Line

Serrated Skin Jointsand Access Panels

Page 59: STEALTH AIRCRAFTS DESIGN ASPECTS AND CONSIDERATIONS · STEALTH AIRCRAFTS DESIGN ASPECTS AND CONSIDERATIONS. ... The Lockheed Martin F-117 stealth fighter ... to an ideal stealth shape.

Artzi Dror

&��������''���

�������������������(��������������������������������

����������������������������������������������������������

Page 60: STEALTH AIRCRAFTS DESIGN ASPECTS AND CONSIDERATIONS · STEALTH AIRCRAFTS DESIGN ASPECTS AND CONSIDERATIONS. ... The Lockheed Martin F-117 stealth fighter ... to an ideal stealth shape.

Artzi Dror

)��������������������

Page 61: STEALTH AIRCRAFTS DESIGN ASPECTS AND CONSIDERATIONS · STEALTH AIRCRAFTS DESIGN ASPECTS AND CONSIDERATIONS. ... The Lockheed Martin F-117 stealth fighter ... to an ideal stealth shape.

Artzi Dror

F-22Skin and Access Panels Assembly

Page 62: STEALTH AIRCRAFTS DESIGN ASPECTS AND CONSIDERATIONS · STEALTH AIRCRAFTS DESIGN ASPECTS AND CONSIDERATIONS. ... The Lockheed Martin F-117 stealth fighter ... to an ideal stealth shape.

Artzi DrorF-22

“Frequent-Access” Panels open and closed without compromising the LO (Low-Observable) “Bubble”

The F-22 has almost 300 specially designed access points. Many service points are located inside the weapon bays, landing gear doors and other openings.

Page 63: STEALTH AIRCRAFTS DESIGN ASPECTS AND CONSIDERATIONS · STEALTH AIRCRAFTS DESIGN ASPECTS AND CONSIDERATIONS. ... The Lockheed Martin F-117 stealth fighter ... to an ideal stealth shape.

Artzi Dror

F-22Measurement of Steps and Gaps in Skin Panel's Joint Lines

by Optical Probes

Page 64: STEALTH AIRCRAFTS DESIGN ASPECTS AND CONSIDERATIONS · STEALTH AIRCRAFTS DESIGN ASPECTS AND CONSIDERATIONS. ... The Lockheed Martin F-117 stealth fighter ... to an ideal stealth shape.

Artzi Dror

F-22Gun Door Test

M 61A2 Six Barreled20 mm Gatling Gun

Page 65: STEALTH AIRCRAFTS DESIGN ASPECTS AND CONSIDERATIONS · STEALTH AIRCRAFTS DESIGN ASPECTS AND CONSIDERATIONS. ... The Lockheed Martin F-117 stealth fighter ... to an ideal stealth shape.

Artzi Dror

F-22Weapons Bay Doors

Page 66: STEALTH AIRCRAFTS DESIGN ASPECTS AND CONSIDERATIONS · STEALTH AIRCRAFTS DESIGN ASPECTS AND CONSIDERATIONS. ... The Lockheed Martin F-117 stealth fighter ... to an ideal stealth shape.

Artzi DrorF-22

AIM-9M Missile Launched

Page 67: STEALTH AIRCRAFTS DESIGN ASPECTS AND CONSIDERATIONS · STEALTH AIRCRAFTS DESIGN ASPECTS AND CONSIDERATIONS. ... The Lockheed Martin F-117 stealth fighter ... to an ideal stealth shape.

Artzi Dror

F-22 CUTAWAY

Page 68: STEALTH AIRCRAFTS DESIGN ASPECTS AND CONSIDERATIONS · STEALTH AIRCRAFTS DESIGN ASPECTS AND CONSIDERATIONS. ... The Lockheed Martin F-117 stealth fighter ... to an ideal stealth shape.

Artzi Dror

*����������

play Play 2

Multilayer, Multispectral Camouflage System

Page 69: STEALTH AIRCRAFTS DESIGN ASPECTS AND CONSIDERATIONS · STEALTH AIRCRAFTS DESIGN ASPECTS AND CONSIDERATIONS. ... The Lockheed Martin F-117 stealth fighter ... to an ideal stealth shape.

Artzi Dror

Boeing X-32 JSF (Joint Strike Fighter)Technology Demonstrator

WEAPONS BAYS

Page 70: STEALTH AIRCRAFTS DESIGN ASPECTS AND CONSIDERATIONS · STEALTH AIRCRAFTS DESIGN ASPECTS AND CONSIDERATIONS. ... The Lockheed Martin F-117 stealth fighter ... to an ideal stealth shape.

Artzi Dror

X-32 JSF

Page 71: STEALTH AIRCRAFTS DESIGN ASPECTS AND CONSIDERATIONS · STEALTH AIRCRAFTS DESIGN ASPECTS AND CONSIDERATIONS. ... The Lockheed Martin F-117 stealth fighter ... to an ideal stealth shape.

Artzi Dror

X-32A PROTOTYPE

Page 72: STEALTH AIRCRAFTS DESIGN ASPECTS AND CONSIDERATIONS · STEALTH AIRCRAFTS DESIGN ASPECTS AND CONSIDERATIONS. ... The Lockheed Martin F-117 stealth fighter ... to an ideal stealth shape.

Artzi Dror

X-32

Page 73: STEALTH AIRCRAFTS DESIGN ASPECTS AND CONSIDERATIONS · STEALTH AIRCRAFTS DESIGN ASPECTS AND CONSIDERATIONS. ... The Lockheed Martin F-117 stealth fighter ... to an ideal stealth shape.

Artzi Dror

X-32 TIP to TIP WING STRUCTURE

Page 74: STEALTH AIRCRAFTS DESIGN ASPECTS AND CONSIDERATIONS · STEALTH AIRCRAFTS DESIGN ASPECTS AND CONSIDERATIONS. ... The Lockheed Martin F-117 stealth fighter ... to an ideal stealth shape.

Artzi Dror

X-32 Cool Exhaust Duct for very low IR Signature

Page 75: STEALTH AIRCRAFTS DESIGN ASPECTS AND CONSIDERATIONS · STEALTH AIRCRAFTS DESIGN ASPECTS AND CONSIDERATIONS. ... The Lockheed Martin F-117 stealth fighter ... to an ideal stealth shape.

Artzi Dror

X-32B STOVL

Page 76: STEALTH AIRCRAFTS DESIGN ASPECTS AND CONSIDERATIONS · STEALTH AIRCRAFTS DESIGN ASPECTS AND CONSIDERATIONS. ... The Lockheed Martin F-117 stealth fighter ... to an ideal stealth shape.

Artzi Dror

X-32B PROPULSION SYSTEMP&W JSF119-SE614S

Page 77: STEALTH AIRCRAFTS DESIGN ASPECTS AND CONSIDERATIONS · STEALTH AIRCRAFTS DESIGN ASPECTS AND CONSIDERATIONS. ... The Lockheed Martin F-117 stealth fighter ... to an ideal stealth shape.

Artzi Dror

X-32 BOEING RCS MODEL

The manufacturers andthe US government have continuouslyupdated their RCS test facilities. They can now measure signaturesas low as -70dB/m2

- one ten-millionth of a square meter,or the size of a grain of dust

Page 78: STEALTH AIRCRAFTS DESIGN ASPECTS AND CONSIDERATIONS · STEALTH AIRCRAFTS DESIGN ASPECTS AND CONSIDERATIONS. ... The Lockheed Martin F-117 stealth fighter ... to an ideal stealth shape.

Artzi Dror

Lockheed Martin X-35A JSF

Page 79: STEALTH AIRCRAFTS DESIGN ASPECTS AND CONSIDERATIONS · STEALTH AIRCRAFTS DESIGN ASPECTS AND CONSIDERATIONS. ... The Lockheed Martin F-117 stealth fighter ... to an ideal stealth shape.

Artzi Dror

X-35A PROTOTYPE

Page 80: STEALTH AIRCRAFTS DESIGN ASPECTS AND CONSIDERATIONS · STEALTH AIRCRAFTS DESIGN ASPECTS AND CONSIDERATIONS. ... The Lockheed Martin F-117 stealth fighter ... to an ideal stealth shape.

Artzi Dror

X-35

Page 81: STEALTH AIRCRAFTS DESIGN ASPECTS AND CONSIDERATIONS · STEALTH AIRCRAFTS DESIGN ASPECTS AND CONSIDERATIONS. ... The Lockheed Martin F-117 stealth fighter ... to an ideal stealth shape.

Artzi Dror

X-35B STOVL ASSEMBLY atLockheed Martin Skunk Works

Page 82: STEALTH AIRCRAFTS DESIGN ASPECTS AND CONSIDERATIONS · STEALTH AIRCRAFTS DESIGN ASPECTS AND CONSIDERATIONS. ... The Lockheed Martin F-117 stealth fighter ... to an ideal stealth shape.

Artzi Dror

F-35 Weapon Bays Fitted for 900 Kg JDAM and single AIM-120 AMRAAM

!

Page 83: STEALTH AIRCRAFTS DESIGN ASPECTS AND CONSIDERATIONS · STEALTH AIRCRAFTS DESIGN ASPECTS AND CONSIDERATIONS. ... The Lockheed Martin F-117 stealth fighter ... to an ideal stealth shape.

Artzi Dror

X-35C US NAVY VERSION

Page 84: STEALTH AIRCRAFTS DESIGN ASPECTS AND CONSIDERATIONS · STEALTH AIRCRAFTS DESIGN ASPECTS AND CONSIDERATIONS. ... The Lockheed Martin F-117 stealth fighter ... to an ideal stealth shape.

Artzi Dror

X-35B (STOVL) IN VERTICAL TAKE-OFF WITH FAN DOORS OPEN

Page 85: STEALTH AIRCRAFTS DESIGN ASPECTS AND CONSIDERATIONS · STEALTH AIRCRAFTS DESIGN ASPECTS AND CONSIDERATIONS. ... The Lockheed Martin F-117 stealth fighter ... to an ideal stealth shape.

Artzi Dror

X-35B (STOVL) IN TRANSITION MODE WITH FAN DOORS OPEN

Page 86: STEALTH AIRCRAFTS DESIGN ASPECTS AND CONSIDERATIONS · STEALTH AIRCRAFTS DESIGN ASPECTS AND CONSIDERATIONS. ... The Lockheed Martin F-117 stealth fighter ... to an ideal stealth shape.

Artzi Dror

Simplified cutaway of the F-35B propulsion system

LIFTING FAN VECTORED ENGINE THRUST

ROLL NOZZLES

Page 87: STEALTH AIRCRAFTS DESIGN ASPECTS AND CONSIDERATIONS · STEALTH AIRCRAFTS DESIGN ASPECTS AND CONSIDERATIONS. ... The Lockheed Martin F-117 stealth fighter ... to an ideal stealth shape.

Artzi Dror

Lockheed Martin JSF RCS MODELTESTED at RCS RANGE

Page 88: STEALTH AIRCRAFTS DESIGN ASPECTS AND CONSIDERATIONS · STEALTH AIRCRAFTS DESIGN ASPECTS AND CONSIDERATIONS. ... The Lockheed Martin F-117 stealth fighter ... to an ideal stealth shape.

Artzi Dror

RCS Measurement System

in Manching Germany

Handle objects up to 45 tones

Page 89: STEALTH AIRCRAFTS DESIGN ASPECTS AND CONSIDERATIONS · STEALTH AIRCRAFTS DESIGN ASPECTS AND CONSIDERATIONS. ... The Lockheed Martin F-117 stealth fighter ... to an ideal stealth shape.

Artzi Dror

SU-27

Page 90: STEALTH AIRCRAFTS DESIGN ASPECTS AND CONSIDERATIONS · STEALTH AIRCRAFTS DESIGN ASPECTS AND CONSIDERATIONS. ... The Lockheed Martin F-117 stealth fighter ... to an ideal stealth shape.

Artzi Dror

US Navy McDonnell Douglas/General Dynamics A-12

Cancelled in January 1991was ahead of its time in its approach to stealth

Page 91: STEALTH AIRCRAFTS DESIGN ASPECTS AND CONSIDERATIONS · STEALTH AIRCRAFTS DESIGN ASPECTS AND CONSIDERATIONS. ... The Lockheed Martin F-117 stealth fighter ... to an ideal stealth shape.

Artzi Dror

RAH-66 “COMANCHE”

��������+ ����������������������������������������,�����������--.

�����������������������

��������/����������������������������

���������������������

�������/������������

������������������������

����������������������������

������������

�����������������������������������

Page 92: STEALTH AIRCRAFTS DESIGN ASPECTS AND CONSIDERATIONS · STEALTH AIRCRAFTS DESIGN ASPECTS AND CONSIDERATIONS. ... The Lockheed Martin F-117 stealth fighter ... to an ideal stealth shape.

Artzi Dror

Boeing X-45A UCAV Demonstrator

The two X-45A prototypes are 45% composite production vehicles will be 90% composite.

Page 93: STEALTH AIRCRAFTS DESIGN ASPECTS AND CONSIDERATIONS · STEALTH AIRCRAFTS DESIGN ASPECTS AND CONSIDERATIONS. ... The Lockheed Martin F-117 stealth fighter ... to an ideal stealth shape.

Artzi Dror

Northrop-Grumman Pegasus UCAV Demonstrator

Northrop Grumman's Pegasus test vehicle has one of the stealthiest inlets ever designed.

Page 94: STEALTH AIRCRAFTS DESIGN ASPECTS AND CONSIDERATIONS · STEALTH AIRCRAFTS DESIGN ASPECTS AND CONSIDERATIONS. ... The Lockheed Martin F-117 stealth fighter ... to an ideal stealth shape.

Artzi Dror

The Lampyridae Stealth InterceptorTop Secret Development by MBB Since 1981

Page 95: STEALTH AIRCRAFTS DESIGN ASPECTS AND CONSIDERATIONS · STEALTH AIRCRAFTS DESIGN ASPECTS AND CONSIDERATIONS. ... The Lockheed Martin F-117 stealth fighter ... to an ideal stealth shape.

Artzi Dror

In its search to replace its Tornado GR.4, the UK isexploring manned and unmanned aircraft.

Page 96: STEALTH AIRCRAFTS DESIGN ASPECTS AND CONSIDERATIONS · STEALTH AIRCRAFTS DESIGN ASPECTS AND CONSIDERATIONS. ... The Lockheed Martin F-117 stealth fighter ... to an ideal stealth shape.

Artzi Dror

Bae - Stealth Platform

Page 97: STEALTH AIRCRAFTS DESIGN ASPECTS AND CONSIDERATIONS · STEALTH AIRCRAFTS DESIGN ASPECTS AND CONSIDERATIONS. ... The Lockheed Martin F-117 stealth fighter ... to an ideal stealth shape.

Artzi Dror

This stealthy derivative of the Apache/Scalp EG was studied in the mid-1990s.

It uses a combination of shaping and radar-absorbent material to minimise its radar cross-section.

MBDA-France Air to Surface Cruise Missile

Page 98: STEALTH AIRCRAFTS DESIGN ASPECTS AND CONSIDERATIONS · STEALTH AIRCRAFTS DESIGN ASPECTS AND CONSIDERATIONS. ... The Lockheed Martin F-117 stealth fighter ... to an ideal stealth shape.

Artzi Dror

Dassault AviationA’ronef Validation Experimentale (AVE) UAV

made its first flight in July 2000

Page 99: STEALTH AIRCRAFTS DESIGN ASPECTS AND CONSIDERATIONS · STEALTH AIRCRAFTS DESIGN ASPECTS AND CONSIDERATIONS. ... The Lockheed Martin F-117 stealth fighter ... to an ideal stealth shape.

Artzi Dror

Preliminary Configuration of Luftwaffe(EADS) Reconnaissance UAV

Page 100: STEALTH AIRCRAFTS DESIGN ASPECTS AND CONSIDERATIONS · STEALTH AIRCRAFTS DESIGN ASPECTS AND CONSIDERATIONS. ... The Lockheed Martin F-117 stealth fighter ... to an ideal stealth shape.

Artzi Dror

Northrop Grumman Pegasus Naval UCAV

Page 101: STEALTH AIRCRAFTS DESIGN ASPECTS AND CONSIDERATIONS · STEALTH AIRCRAFTS DESIGN ASPECTS AND CONSIDERATIONS. ... The Lockheed Martin F-117 stealth fighter ... to an ideal stealth shape.

Artzi Dror

Pegasus Naval UCAVIncluding 2 Weapon bays

Page 102: STEALTH AIRCRAFTS DESIGN ASPECTS AND CONSIDERATIONS · STEALTH AIRCRAFTS DESIGN ASPECTS AND CONSIDERATIONS. ... The Lockheed Martin F-117 stealth fighter ... to an ideal stealth shape.

Artzi Dror

Boeing is developing DE (directed-energy) concepts for the X-45 UCAV

Page 103: STEALTH AIRCRAFTS DESIGN ASPECTS AND CONSIDERATIONS · STEALTH AIRCRAFTS DESIGN ASPECTS AND CONSIDERATIONS. ... The Lockheed Martin F-117 stealth fighter ... to an ideal stealth shape.

Artzi Dror

With stabilizers smoothly blended into the wingand an inlet entirely masked from the front,

the Bird Of Prey is clearly aimed at very low RCS levels.

Boeing's Bird of Prey named after a Klingon spacecraft from Star Trek

Page 104: STEALTH AIRCRAFTS DESIGN ASPECTS AND CONSIDERATIONS · STEALTH AIRCRAFTS DESIGN ASPECTS AND CONSIDERATIONS. ... The Lockheed Martin F-117 stealth fighter ... to an ideal stealth shape.

Artzi Dror

SHADOW

Page 105: STEALTH AIRCRAFTS DESIGN ASPECTS AND CONSIDERATIONS · STEALTH AIRCRAFTS DESIGN ASPECTS AND CONSIDERATIONS. ... The Lockheed Martin F-117 stealth fighter ... to an ideal stealth shape.

Artzi Dror

What Next ?

• The new aircraft are almost certain to be tailless. All surfaces will be canted very steeply away from the horizontal,particularly at the vehicle edges:such future vehicles are likely to resemble the Northrop Grumman Pegasus demonstratoror the Lockheed Martin-Boeing RQ-3 DarkStar reconnaissance unmanned aerial vehicle (UAV).

• external moving components will be eliminated:General Electric (GE), for instance,has designed and tested 'fluidic' jet nozzles in whichinternal airflows are modulated to change the effective areaand vector angle of the exhaust, while the nozzle remains mechanically fixed.

• integrating a number of new technologies.

Page 106: STEALTH AIRCRAFTS DESIGN ASPECTS AND CONSIDERATIONS · STEALTH AIRCRAFTS DESIGN ASPECTS AND CONSIDERATIONS. ... The Lockheed Martin F-117 stealth fighter ... to an ideal stealth shape.

Artzi Dror

•IR and visual signatures may become dominant. Under a USAF program, Northrop Grumman and GE have investigatedan active cooling system that would deliver air at 0 to 37.5÷C to the engine nozzles. This would require very heat-tolerant fuel, but could virtually eliminate the heat signature from the engine nozzle.•Adaptive terrain match skin

•Higher and Faster

• ???? !!!!!!!!!!

• Use of flexible elastomer skins for weapon bay doors, control surfaces and variable inlets.

•Highly integrated avionics systems will be used to reducethe number of apertures in the aircraft surface

•Discrete moving parts and doors may be replaced by flexible surfaces

Page 107: STEALTH AIRCRAFTS DESIGN ASPECTS AND CONSIDERATIONS · STEALTH AIRCRAFTS DESIGN ASPECTS AND CONSIDERATIONS. ... The Lockheed Martin F-117 stealth fighter ... to an ideal stealth shape.

Artzi Dror

The Ultimate Stealthy Aircraft

Page 108: STEALTH AIRCRAFTS DESIGN ASPECTS AND CONSIDERATIONS · STEALTH AIRCRAFTS DESIGN ASPECTS AND CONSIDERATIONS. ... The Lockheed Martin F-117 stealth fighter ... to an ideal stealth shape.

����������������� ��������

���������� ������������

The Dawn of The Era of Powered FlightWright Brothers Flyer – December 17 1903 At 10:35

In Kitty-Hawk

��������������������

� ���������

������������������������

����������������������

Page 109: STEALTH AIRCRAFTS DESIGN ASPECTS AND CONSIDERATIONS · STEALTH AIRCRAFTS DESIGN ASPECTS AND CONSIDERATIONS. ... The Lockheed Martin F-117 stealth fighter ... to an ideal stealth shape.

Artzi Dror

Page 110: STEALTH AIRCRAFTS DESIGN ASPECTS AND CONSIDERATIONS · STEALTH AIRCRAFTS DESIGN ASPECTS AND CONSIDERATIONS. ... The Lockheed Martin F-117 stealth fighter ... to an ideal stealth shape.

Artzi Dror

Page 111: STEALTH AIRCRAFTS DESIGN ASPECTS AND CONSIDERATIONS · STEALTH AIRCRAFTS DESIGN ASPECTS AND CONSIDERATIONS. ... The Lockheed Martin F-117 stealth fighter ... to an ideal stealth shape.

Artzi Dror

Lockheed's conceptual design looks to fill the needfor a medium-lift multirole transport suited to the needs of both

conventional and special forces

The MACK

Page 112: STEALTH AIRCRAFTS DESIGN ASPECTS AND CONSIDERATIONS · STEALTH AIRCRAFTS DESIGN ASPECTS AND CONSIDERATIONS. ... The Lockheed Martin F-117 stealth fighter ... to an ideal stealth shape.

Artzi Dror

0�10����

��2�2" �������"�

"����"

31��"0����4����"

�������������������������������������"0������"�

5������6������

(������� ��������

7������

*�����������8�+������

Page 113: STEALTH AIRCRAFTS DESIGN ASPECTS AND CONSIDERATIONS · STEALTH AIRCRAFTS DESIGN ASPECTS AND CONSIDERATIONS. ... The Lockheed Martin F-117 stealth fighter ... to an ideal stealth shape.

Artzi Dror

Lockheed's proposal for a long-range strike aircraftfeatures a highly swept delta and operating speeds of up to M4.0

Page 114: STEALTH AIRCRAFTS DESIGN ASPECTS AND CONSIDERATIONS · STEALTH AIRCRAFTS DESIGN ASPECTS AND CONSIDERATIONS. ... The Lockheed Martin F-117 stealth fighter ... to an ideal stealth shape.

Artzi Dror

Artist Impression of New Generation Multi-Mission Transport Aircraft for 2015

Back

Page 115: STEALTH AIRCRAFTS DESIGN ASPECTS AND CONSIDERATIONS · STEALTH AIRCRAFTS DESIGN ASPECTS AND CONSIDERATIONS. ... The Lockheed Martin F-117 stealth fighter ... to an ideal stealth shape.

Artzi Dror

Northrop Grumman Pegasus Naval UCAV Demonstrator

Northrop Grumman's kite-like design is very close to an ideal stealth shape.

Back

Page 116: STEALTH AIRCRAFTS DESIGN ASPECTS AND CONSIDERATIONS · STEALTH AIRCRAFTS DESIGN ASPECTS AND CONSIDERATIONS. ... The Lockheed Martin F-117 stealth fighter ... to an ideal stealth shape.

Artzi DrorLockheed's DarkStar

Despite the official termination of the programme, Lockheed's DarkStar long-endurance, high altitude UAV may have become a 'black' project. The surviving airframe was not scrapped, unconfirmed reportspersist about the testing of a larger, developed model.Further unconfirmed reports claim that a secret Lockheed UAV was used during Operation 'Iraqi Freedom' last year

Back

Page 117: STEALTH AIRCRAFTS DESIGN ASPECTS AND CONSIDERATIONS · STEALTH AIRCRAFTS DESIGN ASPECTS AND CONSIDERATIONS. ... The Lockheed Martin F-117 stealth fighter ... to an ideal stealth shape.

Artzi Dror

Boeing has patented a design for a gapless control surfacewith flexible hinge and end covers,

Gaps can create radar hot-spots for a stealthy aircraft.

Back

Page 118: STEALTH AIRCRAFTS DESIGN ASPECTS AND CONSIDERATIONS · STEALTH AIRCRAFTS DESIGN ASPECTS AND CONSIDERATIONS. ... The Lockheed Martin F-117 stealth fighter ... to an ideal stealth shape.

Artzi Dror

Page 119: STEALTH AIRCRAFTS DESIGN ASPECTS AND CONSIDERATIONS · STEALTH AIRCRAFTS DESIGN ASPECTS AND CONSIDERATIONS. ... The Lockheed Martin F-117 stealth fighter ... to an ideal stealth shape.

Artzi DrorX-35B PROPULSION SYSTEM

P&W JSF119-SE611S

Page 120: STEALTH AIRCRAFTS DESIGN ASPECTS AND CONSIDERATIONS · STEALTH AIRCRAFTS DESIGN ASPECTS AND CONSIDERATIONS. ... The Lockheed Martin F-117 stealth fighter ... to an ideal stealth shape.

Artzi Dror

F-35C CUTAWAY

LIFTING FANVECTORED ENGINE THRUST

Page 121: STEALTH AIRCRAFTS DESIGN ASPECTS AND CONSIDERATIONS · STEALTH AIRCRAFTS DESIGN ASPECTS AND CONSIDERATIONS. ... The Lockheed Martin F-117 stealth fighter ... to an ideal stealth shape.

Artzi Dror

������������ ������9�������������������������������������������������������������������������������

�������������������

3������������������������������������������������������������������������

�������:"��������� ������“; �������������

back

Page 122: STEALTH AIRCRAFTS DESIGN ASPECTS AND CONSIDERATIONS · STEALTH AIRCRAFTS DESIGN ASPECTS AND CONSIDERATIONS. ... The Lockheed Martin F-117 stealth fighter ... to an ideal stealth shape.

Artzi Dror

X -43

Page 123: STEALTH AIRCRAFTS DESIGN ASPECTS AND CONSIDERATIONS · STEALTH AIRCRAFTS DESIGN ASPECTS AND CONSIDERATIONS. ... The Lockheed Martin F-117 stealth fighter ... to an ideal stealth shape.

Artzi Dror

PLAY

Page 124: STEALTH AIRCRAFTS DESIGN ASPECTS AND CONSIDERATIONS · STEALTH AIRCRAFTS DESIGN ASPECTS AND CONSIDERATIONS. ... The Lockheed Martin F-117 stealth fighter ... to an ideal stealth shape.

Artzi Dror

Page 125: STEALTH AIRCRAFTS DESIGN ASPECTS AND CONSIDERATIONS · STEALTH AIRCRAFTS DESIGN ASPECTS AND CONSIDERATIONS. ... The Lockheed Martin F-117 stealth fighter ... to an ideal stealth shape.

Artzi Dror

Page 126: STEALTH AIRCRAFTS DESIGN ASPECTS AND CONSIDERATIONS · STEALTH AIRCRAFTS DESIGN ASPECTS AND CONSIDERATIONS. ... The Lockheed Martin F-117 stealth fighter ... to an ideal stealth shape.

Artzi Dror

BACK

Page 127: STEALTH AIRCRAFTS DESIGN ASPECTS AND CONSIDERATIONS · STEALTH AIRCRAFTS DESIGN ASPECTS AND CONSIDERATIONS. ... The Lockheed Martin F-117 stealth fighter ... to an ideal stealth shape.

Artzi Dror

BACK

Page 128: STEALTH AIRCRAFTS DESIGN ASPECTS AND CONSIDERATIONS · STEALTH AIRCRAFTS DESIGN ASPECTS AND CONSIDERATIONS. ... The Lockheed Martin F-117 stealth fighter ... to an ideal stealth shape.

Artzi Dror


Recommended