24. HAL Light Combat Helicopter
The Light Combat Helicopter (LCH) of Hindustan Aeronautics Limited (HAL) is an Indian multi-role attack helicopter designed and manufactured by HAL (HAL). The LCH has been ordered by both the Indian Air Force and the Indian Army. Its flight ceiling is the highest of any combat helicopter. A rigorous testing effort including four prototypes was carried out. During these tests, the LCH made history by becoming the first attack helicopter to land in Siachen, landing on helipads as high as 13,600 feet (4145 meters) and as low as 15,800 feet (4815 meters) on multiple occasions.
23. Sikorsky S-97 Raider
The S-97 Raider, a high-speed scout and attack compound helicopter based on the Advancing Blade Concept (ABC) with a coaxial rotor system, may still be in development, but it will be in service sooner than you think. Sikorsky wanted to sell it to the Armed Aerial Scout program of the United States Army, among other prospective customers. On May 22, 2015, the fuselage was subjected to simulated bird collisions at speeds up to 235 km (435 km/h; 270 mph), the S-97’s anticipated maximum flight speed. Drop tests were also performed to ensure that the gasoline tanks would not be damaged in the event of a collision.