An attack helicopter provides battle commanders a tool for delivering surprise and shock effect to the enemy. This is because attack helicopters can be more readily deployed than any other weapon system in dealing with an armored attack. Attack helicopters become even more lethal when equipped with advanced sensors, more potent weapons and improved survivability. New communications systems allow these platforms to pass on battlefield information to other platforms, thereby resulting in a more coordinated and efficient attack over long ranges. In this paper, I have discussed about the Apache's amazing flight systems, engines, weapon systems, sensor systems and armor systems. Individually these components are remarkable pieces of technology. Combined together they make up an unbelievable fighting machine - the most lethal helicopter ever created. The AH-64 Apache is a four-blade, twin-engine attack helicopter with reverse-tricycle landing gear, and tandem cockpit for a crew of two. The Apache was developed as Model 77 by Hughes Helicopters for the United States Army's Advanced Attack Helicopter program to replace the AH-1 Cobra. First flown on 1 October 1975, the AH-64 features a nose-mounted sensor suite for target acquisition and night vision systems. The Apache is armed with a 30 mm M230 Chain Gun carried between the main landing gear, under the aircraft's forward fuselage. The AH-64 also carries a mixture of AGM-114 Hellfire and Hydra 70 rocket pods on four hard-points mounted on stub-wing pylons. The AH-64 also features double- and triple-redundant aircraft systems to improve survivability for the aircraft and crew in combat, as well as improved crash survivability for the pilots. The Apache helicopters will have significant influence in terms of capabilities and performances as well as the nature of future battlefield structure in the 21st century. High-speed attack helicopters will certainly well-suited to face the challenges...
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