introductio to stealth technology, it's uses and features. application of it.

1. WELCOME

2. STEALTH
TECHNOLOGY

3. What is Stealth Technology?
A sub-discipline of military tactics and passive electronic
countermeasures which cover a range of techniques used with
personnel, aircrafts, ships, missiles & satellites to make them less visible
to radars, infrared, sonar and other detection methods.

4. • In the 19th Century, the aircrafts were round from their face side.
• So they can easily traced by RADARS.
• During World War I, the Germans experimented with the use of Cellon (Cellulose acetate), a transparent
covering material, in an attempt to reduce the visibility of military aircraft.
• The first radars were developed for anti-aircraft purposes just before World War II.
• Development of radars are designed for mortar locating. Locating mortars was relatively easy because their
trajectory was sufficiently close to parabolic that the simple mathematics of parabolas could be used with
analogue computers.
• Instead of just locating individual guns, etc., the radar was able to locate many simultaneously and group
them into batteries with a centre point, dimensions and attitude of the long axis of the battery.
• So there was utmost need of a technology which can avoid the senses of a RADAR.
AFEWDECADESBEFORE…

5. How Does It Work?
• A stealth aircraft is made up of completely flat surfaces and very
sharp edges. When a radar signal hits a stealth plane, the signal
reflects away at different angles.
• In addition, surfaces on a stealth aircraft can be treated so they
absorb radar energy as well. The overall result is that a stealth aircraft
like an F-117A can have the radar signature of a small bird rather than
an airplane. The only exception is when the plane banks -- there will
often be a moment when one of the panels of the plane will perfectly
reflect a burst of radar energy back to the antenna.

6. What’s the need of Stealth Technology?
• To increase country defence integrity.
• Help in covert operation.
• To set off an international crisis.
• To protect country from unusual loss.
• A subtle step towards Military Advancements.

7. Unique Features Of Stealth Technology
• Radar Cross-Section(RCS) Reductions.
• Skin is radar transparent or absorbing; structures termed re-entrant triangles.
• The Stealth shape: i) Altering the tail.
ii) Stealth design must bury the engines within the wing or
fuselage.
iii) Install baffles in the air intakes, so that the
compressor blades are not visible to radar.

8. Counter Radars

9. What is Counter Radars?
• A counter-radar is a mobile radar that detects Artillery projectiles fired by
one or more guns.
• The basic technique is to track a projectile for sufficient time to record a
segment of the trajectory.
• Traditional radars used to project a conical beam at 25 degrees, which was
incapable of tracing the projectiles of Stealth Vehicles.
• The ROYAL RADAR ESTABLISHMENT in UK developed a different approach
for their GREEN ARCHER system, in which a radar signal was produced in
the form of a fan about 40 degrees wide and 1 degree high.
• A typical Anti-radar is US AN/TPQ-36, which can detonate electrically fused
ammunition at a short range.

10. Where Are We
In The
Field Of
Stealth Technology?

11. Some typical features in DRDO-AURA
• Weight around 8-10 tonnes.
• Range of AURA will be more than 300 KM and can fly upto an altitude
of 3000ft
• AURA will be powered by Turbo-fan Engines.
• AURA will be equipped with on-board mission computers.
• AURA will have Traffic Avoidance Collision System.
• AURA can carry precision guided bombs.

12. THANK YOU!!!