A type used in many different roles, both military and civil, by many organizations across the world
A type used in many different roles, both military and civil, by many organizations across the world
December 1, 1947
VH-3D :
First US Marine Corps helicopter squadron (HMX-1) commissioned
March 11, 1959
S-61B (HSS-2):
First flight of the Sikorsky S-61