NATION.INNOVATION

1. MUKUL SINGH
1403331089
ECE(3rd YEAR)

2.  Introduction
 Evolution
 Characteristics
 Design process
 Drawbacks
 Counter stealth
 Applications
 Examples
 Conclusion

3.  Stealth is a technique of making an object
invisible.
 Stealth is an important technology used in military
operations.
 Stealth is also known as LO(low observable)
technology

4.  From earliest days deception has been used to
gain advantage over the enemy.
 Early combat aircraft in WW- I used camouflage
to make visual detection difficult.
 Advent RADAR in late 1930’s and during WW-II
enabled early detection of aircraft .
 In 1940’s a unique way with low RADAR cross
section strategic bombers developed.
 In late 50’s and 60’s came LO planes with
compromised performance .

6.  Airframe shaped for
low radar cross
section.
 Use of radar absorbent
materials(RAM).
 Minimized infrared
signature.
 Reduced engine noise.
 Reduced visual
signature.

7. “How to make things invisible”

8.  RCS of a target is a measure of its size as
seen by the radar.
 It’s a complex function of the geometric cross
section of the target.
 RCS is a characteristics of the target not the
radar.

9. 2
22
4



ba

Large RCS but
decreases rapidly as the
incident angle deviates
from the normal

10. 2
r 
Small RCS but
independent of the
incident angle.

14.  Nanostructural
composite materials
absorbing radar
waves without
reflecting.
 RAM reduces the
radar cross section
making the object
appear smaller.

15. The other techniques are
 Active cancellation
 Passive cancellation
 Plasma stealth

16.  Poor aerodynamic properties.
 Requires high end electronic instruments and
software's.
 High maintenance cost.
 Limited amount of ordnance.

17.  Obtain stronger RADAR returns employing
sophisticated algorithm.
 VHF and UHF radars
 High frequency over the horizon
radars(OTHRs).
 BI-static and multi-static radar technology.

18.  Civil aviation and launch
vehicles
 Military applications.

19.  Wing Span 44.5 ft
 Length 62 ft 1 in
 Wing area 830 sq. ft.
 Top Speed Mach 2+
 Range 800 Nm
 Altitude 65,000 ft
 Air Superiority
 Low Observable

21. “The future is bright, the future is stealth….”

22. Thank You….