Now that my posting issues have graciously been fixed by the mods (sincere thank you by the way). Per your request:
Sikorsky 350mph commercial project
Source:
Flying Review International, August 1968
Fresh out of the restoration shop at Ft. Rucker! Can put up more pictures if anyone is interested.
Fresh out of the restoration shop at Ft. Rucker! Can put up more pictures if anyone is interested.
Wish they'd have been that kind to their XCH-62 and their AH-56 Cheyenne.
"Death of a Titan"
On Oct. 11, 2005, the U.S. Army Aviation Museum in Ft. Rucker, Alabama destroyed the sole Boeing XCH-62 Heavy Lift Helicopter (HLH) prototype. A lack of adequate protection over the prior two decades resulted in premature structural corrosion and decay. Photo by Michael Merritt.gallery.vtol.org
Not a new idea by Sikorsky : This ABC UTTAS proposal was shown
in Air & Cosmos 12.1968 (No design/type numbers given) :
here is a weird picture to Sikosky S-69 helicopter model,from L + K 19/1972
I guess it makes sense in terms of smaller total rotor diameter and not losing any potential lifting power to the anti-torque rotor...Wow, never seen the ABC crane before. Thanks for post, hesham.