Sikorsky has commenced bladed ground testing of its S-97 Raider™ armed reconnaissance helicopter prototype at its Development Flight C...
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Rolled out in October 2014, the Raider is designed to significantly outmatch conventional military helicopters in maneuverability, payload, speed, range and high/hot environmental conditions.
During the ground run phase, the S-97 Raider team is testing the first of two aircraft prototypes as a completed system for the first time. The team will perform initial ground tests with the aircraft tied down and will focus on verifying correct operation of the propulsion system, drive train, rotor control system and pilot-vehicle interface.
The program has recently completed software qualification testing, component fatigue testing, and gearbox testing, for the first S-97 RAIDER prototype.
Based on Sikorsky's rigid X2 rotor coaxial design, the S-97 Raider helicopter features next-generation technologies in a multi-mission configuration, capable of carrying six troops and external weapons. The coaxial counter-rotating main rotors and pusher propeller provide cruise speeds up to 220 knots (253 mph).
Sikorsky will shortly begin final assembly of the second prototype S-97 RAIDER helicopter, following acceptance last month of the fuselage structure from Aurora Flight Sciences.
The 5 ton helicopter is powered by a single General Electric YT706 turboshaft rated at 1,900 kW and is designed for a service ceiling of 10,000 ft (3,048 m).
The S-97 RAIDER helicopter demonstrator program is 100 percent industry-funded. Sikorsky provides 75 percent of the investment and the suppliers provide the remaining funding. Sikorsky's goal is to attract government interest in the program.
