This document presents information about radar stealth technology. It discusses how stealth technology works to reduce the detection of aircraft by radar systems. It explains that stealth technology minimizes an aircraft's radar cross section through shape design and use of radar absorbing materials. Vehicle shape techniques include keeping wings at an angle and designing the nose to deflect radar signals. Radar absorbing materials dissipate radar waves' energy to prevent reflection. This allows stealth aircraft to have reduced detection by radar. The document outlines the history and development of stealth technology as well as future applications.

1. RADAR STEALTH
TECHNOLOGY
PRESENTED TO:
MR.PRADEEP LAMBA
(Assistant Professor)
DEPTT.- URJA MANDIR
PRESENTED BY:
PRAGATI GARG
B.TECH EC (III YR.)
ROLL NO.-8778
BANASTHALI
UNIVERSITY

2. CONTENTS
1. INTRODUCTION
2. EARLY WORK
3. RADAR
4. HOW DOES RADAR WORKS?
5. RADAR CROSS SECTION
6. STEALTH TECHNOLOGY
7. HOW DOES STEALTH TECHNOLOGY WORKS?
8. VEHICLE SHAPE
9. RAMs
10. TYPES OF RAMs
11. COATING AND RAMs
12. DISADVANTAGES
13. FUTURE SCOPE
14. CONCLUSION
15. REFRENCES

3. INTRODUCTION
• RADAR means “Radio Detecting And
Ranging” and STEALTH means “Avoiding
Detection”.
• ‘Radar Stealth Technology’ is used to
prevent the detection of aircrafts or
planes from radar systems.

4. EARLY WORK
World War II played an important role
in stealth technology development.
Germans were the 1st developers
Germans developed the Nano paint
during WW II.

5. F117 NIGHTHAWK
First Aircraft based on RADAR Stealth Technology
-By Lockheed Developers

6. RADAR
Detect and monitor objects.
Measures the speed, range
,direction or altitude of an object
using Doppler's shift
Reflection of electromagnetic
waves.
SLIDE

7. HOW RADAR
WORKS?
 The RADAR dishes transmits radio
waves that bounces off the object in
their path and get back to radar.
The object returns a tiny part of wave’s
energy to the dish that is located at the
same site as the transmitter.

8. RCS is the measure of a target's ability to
reflect radar signals.
RCS is related to:
o Aircraft’s physical geometry
oDirection of radar signal
oFrequency of radar signal
oMaterial of aircraft
RADAR CROSS SECTION
(RCS)

9. STEALTH TECHNOLOGY
Scientifically known as
LOW OBSERVATORY
TECHNOLOGY(LOT)
Used in military aviation
Reduces detection range
of an aircraft
Partial invisibility to
RADAR
Similar to camouflage
tactics used by soldiers

10. HOW DOES STEALTH TECHNOLOGY
WORKS?
There are two aspects of RCS
minimization techniques:
1. Vehicle shape
2. RADAR absorbent material

11. VEHICLE SHAPE
It’s tail should be at ACUTE angle.
Planes wings has to kept at ANGLE.
Design of NOSE.

12. CONVENTIONA
L
AIRCRAFT
STEALTH
AIRCRAFT

13. RADAR ABSORBING MATERIALS

14. TYPES OF RAMS
 Iron ball paint.
 Foam absorber
 Jaumann absorber

15. COATING AND ABSORBERS RAMS
 RAMs dissipate the energy of the radar wave to
prevent the reception of reflected signals.
 The dissipation process converts the radio
frequency (RF) energy to a negligible quantity
of heat.
 It deflects, absorbs and reduce the detection of
RADAR range.

17. Sikorsky UH-60 Black Hawks 22 Helicopter –
Used by the Americans to enter into the Pakistan
and kill OSAMA BIN LADEN successfully.

18. DISADVANTAGES
Cannot fly fast.
Cannot Maneuver.
Reduced amount of payload.
High cost.

19. Stealth technology is clearly the future of air
combat.
As, air defence systems grow more accurate and
deadly, stealth technology can be a factor for a
decisive by a country over the other.
It will also get incorporated in ships, helicopters,
tanks and transport planes.
Ex-RAH66 "Comanche" and the Sea Shadow
ship.
FUTURE SCOPE

20. C
O
N
C
L
U
S
I
O
N
Well to conclude the current scenario
appears some things similar to the cold
war both sides are accumulating
weapons to counter each other and each
side be termed as ‘STEALTH
TECHNOLOGY’ and the other as
‘ANTI-STEALTH TECHNOLOGY’.
It’s an arm race expect it isn’t between
specific countries.

21. REFRENCES
1. http://www.totalairdominance.50megs.com/articles/stealt
h.htm
2. http://en.wikipedia.org/wiki/Stealth_technology
3. http://www.espionageinfo.com/Sp-Te/Stealth-
Technology.html
4. http://science.howstuffworks.com/question69.htm
5. http://images.google.co.in/images

22. THANK
YOU