Sikorsky cut-backs
Helicopter international ; 17 , 5 ; 146-148
1994
Article (Journal)
Unknown
In pursuit of speed, Piasecki backs compound helicopters and Sikorsky coaxial rotors
Online Contents | 2009
Sikorsky. The sikorsky "guardian."
Engineering Index Backfile | 1928
Engineering Index Backfile | 1928
|Sikorsky. The sikorsky "guardian."
Engineering Index Backfile | 1928
Online Contents | 2007