Presented by: R.ASHOK KUMAR

ECE-2

25013202810

STEALTH TECHNOLOGY

CONTENTS

• INTRODUCTION• HISTORY• SIGNATURES• VARIOUS STEALTHS• STEALTH HELICOPTERS• PROPOSED ADVANCEMENTS• INDIA’s STEP TOWARDS STEALTH• ADVANTAGES AND DISADVANTAGES• FUTURE SCOPE

INTRODUCTION

• Stealth technology also known as LO technology (low observable technology).

• Technique which makes any object invisible to detection.

• It is an important technology which used in military operations.

HISTORY• The first "stealth" aircraft was developed in

Germany during the last years of WWII.

• Royal canadian army used camoufage in 1941

• Americans worked on stealth technology and succeeded in 1975.

• Stealth armed: China, Russia, USA, Germany, France, UK, Spain

SIGNATURES• Any unique indicator of the presence of certain

material or troops.

• TYPES OF SIGNATURES:

Radio Cross Section

Infrared signature  

Acoustic Signature

Visible Signature  

Laser Cross Section

RADAR STEALTH

WORKING OF RADAR

• RADAR stealth technique include:

1. Vehicle shape

2. Radar absorbing material (E.g. IRON BALL PAINT)

• Vehicle shape

INFRARED STEALTH

• Heat seeking missiles and other weapons zero in on the infrared glow of hot aircraft parts.

• MEASURES

Mixing cool air

Directing hot exhausts upwards

VISUAL STEALTH• Unable to detect in background• Achieved using camouflages and decoys

SONAR STEALTH• SONAR used for detecting and locating objects

submerged in water by means of the sound waves.

• STEALTH:Submarine is submerged at the layer of thermo cline or immediate below the layer and will not be "captured" from the wave.

ADAPTIVE WATER CURTAIN TECHNOLOGY

• Sea water sprayed in a fashion that effectively creates an angled radar reflective curtain around the ship.

STEALTH HELICOPTERS• Newest addition in stealth technology.• Designs for blades have emerged that can

significantly reduce noise.• Used for raid on the compound of Osama bin

Laden on May 2, 2011.

PROPOSED ADVANCEMENTS

• Hypersonics: The idea is to travel 20 times the speed of sound to avoid detection.

• Employed in MACH 20

MACH 20

• The infrared Invisibility Cloak: Shield one’s body heat from infrared sensors, effectively making them invisible to infrared cameras.

• Plasma Stealth Technology: Also knows as Active Stealth Technology

• Uses plasma to reduce the overall radar cross section of an aircraft.

MIG 37

• Taranis: Autonomous and stealthy unmanned aircraft

• Capable of striking targets with real precision at long range, even in another continent, is even possible

INDIA’s STEP TOWARDS STEALTH• HAL Light Combat helicopter: Multirole 

combat helicopter  Developed by Hindustan Aeronautics

Limited(HAL) 3 units available

• DRDO AURA: Autonomous unmanned combat air vehicle (UCAV)

developed by the DRDO  To be available in 2019.

ADVANTAGES

• Element of surprise• Smaller number of stealth vehicles required• Deter potential enemies from taking action • Decreasing causality rates of the pilots

DISADVANTAGES

• Cannot fly as fast as a conventional aircraft.• Reduced amount of payload carrying capacity.• Reduced flight performance• Cost B-2 ($2 billion), F-117 ($70 million) and the F-22

($100 million)

FUTURE SCOPE

• Stealth technology is clearly the future of air combat.

• To be incorporated not only in fighters and bombers but also in ships, helicopters, tanks and transport planes.

• Not even the sky, is a limit for this technology.