Special test version of S-61F (SH-3A) with stub wings, 2x turbo jet engines, and revised fuselage shape for high speed trials.
List of Operators of Sikorsky NH-3A
|From||Organisation with model NH-3A|
|61-011||1959|| 148033 : hss-2 Sikorsky S-61A c/n 61-011 ff 1959; del USN as YHSS-2 14+ |
redesig NH-3A Oct62; ff as NH-3A 21May65, achieved top+