Apache helicopter

• 1. APACHE HELICOPTER Nalanda Institute of Technology, BBSR Represented By: Meghanad Kheti Guided By : Om Prakash Samal Regd No : 1101297271

2. Apache Helicopter 3. Content Introduction Specification Flight system Engine Weapon system Ammunition & Missiles Sensor system 4. What is it ? Helicopters are the most versatile flying machines in existence today. Here we talk about the latest war machine flying around war fields The Apache Helicopter. Most of the country like United State, Afganistan, Greece, Japan, Israel, the Netherlands and Singapore use Apache as their primary war machine. In this topic, we look at the Apaches amazing flight systems, engines, weapon systems, sensor system and armour systems. 5. Specification 1. NAME : Boeing AH-64 Apache 2. Top Speed : 293 km/h 3. Length : 18 m 4. Wingspan : 15 m 5. Weight : 5,165 kg 6. Engine Type : Turboshaft 7. Role : Fighter Helicopter 8. Works on : Brayton Cycle 6. Flight System As it works on Brayton cycle, mostly used in Jet engines An Air standard cycle. In it's working the air enters the engine through a ram and gets compressed. Then compression takes place in compressor, heat is added to high pressure and high temperature. By fuel injection and their consequent burning, the gases try to expand doing work on turbine, coupled to the compressor. So, the air can't be reused, the jet moves forward based on the exit velocity of combustive gases through nozzle many mechanical moving parts are required for the process to accomplish, and the fuel burnt is of high cost. 7. Jet Engine Helicopters use turboshaft jet (Gas Turbine) engines to power their rotors. A jet engine works on four very simple principles: Suck, Squeeze, Burn and Blow. They are light, very powerful and economical. The best part is that they are very reliable as well. Failure rates for gas-turbine engines are very low because there are not as many internal moving parts as there are in a reciprocating engine. 8. Basic Jet Engine Cross Section 9. Weapon System Guns: 30 mm rounds M230 Chain Gun with 1,200 rounds Hard points: Four pylon stations on the stub wings. Longbows also have a station on each wingtip for an AIM- 92 Stinger twin missile pack. Rockets: Hydra 70 (70 mm), and CRV7 (70 mm) air-to- ground rockets Missiles: Typically AGM-114 Hellfire variants; AIM-92 air to air Stinger may also be carried 10. Armaments and Configuration Mission Hellfire 30 mm rounds Hydra 70 Maximum speed (km/h) Rate of climb (feet/min) Anti-Armour 16 1,200 0 274 990 Covering Force 8 1,200 38 277 860 Escort 0 1,200 76 283 800 11. Images of Missiles 12. Ammunition and Missiles 13. Sensor System Detects surrounding ground forces, aircraft and buildings using a radar dome mounted to the mast Uses radio wave to shape a structure and compare those to the database Night Vision Sensors (forward looking infra-red system) 14. The computer transmits the night vision to a small display unit in each pilot's helmet The video display projects the image onto a monocular lens in front of the pilot's right eye. Manual controls by moving head 15. Armor System Evade enemy radar scanning A radar jammer to confuse the enemy Evade heat-seeking missiles(Black Hole Suppression System) surrounded by Kevlar soft Armor The cockpit is protected by layers of reinforced armour and bulletproof glass 16. Application The principal intended mission of the Apache is the destruction of high-value targets with the HELLFIRE missile. It is also capable of employing a 30mm M230 chain gun and the Hydra 70 (2.75 inch) family of rockets that are lethal against a wide variety of targets. American Apaches were used since 1989 in: Panama, Gulf War, Bosnia, Kosovo and in the Iraq war 17. Conclusion With the design of the apache the very concept of helicopter itself has changed all over the world. Many countries like Russia, Germany etc. have rolled over their versions of attack helicopters. In this seminar Ive tried to put forward some of the design features. 18. Reference Wikipedia Howstuffworks.com Army.mil Military.com Slideshare.net Google.com