Stealth refers to the act of trying to hide or evade detection. Stealth technology is ever increasingly becoming a paramount tool in battle especially “high technology wars” if one may occur in the future where invisibility will mean invincibility. Able to strike with impunity, stealth aircraft, missiles and warships are virtually invisible to most types of military sensors. The experience gained at the warfront emphasizes the need to incorporate stealth features at the design stage itself. According to conventional military wisdom, surprise is the best form of attack. With evermore sophisticated methods of detection, however, catching the enemy unawares has becoming increasingly difficult. Thus paving way to the development of increasingly sophisticated technologies that help in evading the enemy's ever vigilant “eyes”. “The future is bright, the future is stealth”

1. STEALTH
TECHNOLOGY
HIMANSHU

2. INTRODUCTION
Stealth Technology aims at minimizing transmitted and
reflected energies- heat, light, sound, electric potentials etc
- to deny an opponent to locate, track, identify and attack
its target.
Stealth technology is also referred as “VLO” i.e. “VERY
LOW OBSERVABLE TECHNOLOGY.”
Fighter planes are made so they are harder to
be detected by the radar and other electronic tracking
…… devices.

3. RADARSYSTEM
The radar antenna sends out a burst
of radio energy, which is then
reflected back by any object it
happens to encounter.
The radar antenna measures the time
it takes for the reflection to arrive,
and with that information it can tell
how far away the object is.

5. WORKING OF STEALTHTECH.
 The goal of stealth technology is to make an airplane invisible to radar.
 There are two different ways to create invisibility :
1. The airplane can be shaped so that any radar signals it reflects are
reflected away from the radar equipment.
2. The airplane can be covered in materials that absorb radar signals.

6. Aircraft
design
Sharp edge
and flat
surface
Engine
Makes wave not be
able to bounce back
efficiently
Extreme
aerodynamics :
- Minimize air
turbulence
- cut down flying
noise
Hot fumes is mixed
with cool air before
leaving aircraft
Uses a low noise
engine

7. Radar absorbing
materials -RAM
Radar absorbing
structures- RAS
Material
s used
in
designin
g stealth
aircraft

8. Conventional
aircraft
Stealth aircraft
RADAR ABSORBING MATERIAL

9. CONTINUED…!!
Stealth aircraft has to be stealthy in six disciplines:
 RADAR CROSS SECTION
INFRARED
VISUAL
ACOUSTIC
Signature: - Any unique indicator of the presence of certain
object or troops; especially the characteristic electronic
emissions given off by them i.e. any activity or radiation or
the characteristic of the body that helps to revile its at a
………………… presence particular point and time.

10. IR SIGNATURE
RADAR CROSS SECTIONS
REDUCED VISUAL SIGNATURE

11. LIMITATIONS
Making a plane stealthy requires
compromising other aspects of the plane.
Instability of design
Aerodynamic limitations
Reduced payload
Cost of production & operations
Sensitive skin.

12. CONCLUSION
 The Detection and Stealth Technology has
improved significantly in the last fifty years or so.
This trend is likely to continue as these two oppose
each other.
 It is hard and expensive to manufacture and
maintain a stealth vehicle, but it may be easy to hit
critical targets and gain Military Dominancy by using
stealth vehicles. So, a balanced investment should be
considered for stealth vehicles
 Its an arm race except it isn’t between specific
……… countries “Its a fight between Technologies.”