Sikorsky’s S-97
The first of Sikorsky's 2 model S-97 compound helicopters left the ground interestingly May 22, doing a hour of floating and low-speed tests, as per a Sikorsky Aircraft Corporation news discharge.
Company give press and participants a guided stroll around of the S-97 Raider, a proof-of-idea helicopter created without government financing that the organization trusts will gain a part with the army as an outfitted helicopter. The Raider is not the same as pretty much everything in the helicopter world, utilizing a couple of counter-turning inflexible rotors for lift and a tail-mounted fan for extra push, permitting it to fly at rates of up to 400 km for each hour and float at amazing elevations.
The stroll around was guided by the boss test pilot Bill Fell, a previous Army Kiowa scout pilot who has flown the air ship for both of the experimental runs hitherto. The Raider first flew in May of this current year and again in September after reconfigurations taking into account the
The inflexible rotors of the Raider give it a reduced impression contrasted with different helicopters of its size—while it tops off the same space as the two-seater Kiowa, the Raider has space for six troops in a traveler compartment. Furthermore, when in level flight, the Raider flies more like a business plane than a helicopter—the aggregate control secures at its most proficient position, and the pilot flies the helicopter only with the cyclic stick. A control on the stick permits the pilot to control the pitch of the back propeller to control speed in level flight—or to fly the air ship in reverse with negative pitch. What's more, the mix of unbending rotors and back push makes the Raider a great deal more agile than different helicopters; the Raider is intended to withstand supported powers of up to three times the world's gravity in moving.