- 26 May 2006
- Reaction score
Mark Nankivil said:Interesting story Tommy - thanks for that insight. What did Boeing's TRRA look like - any idea or info?
Enjoy the Day! Mark
the development of the Sikorsky RSRA as attack helicopter.
hesham said:Because no one noticed that design,Sikorsky DS-509.
anther drawings to this helicopter,type A and B,and they called it 646,
may be the Bell Model.