This model is a version of S-56 H-37
Helicopter Sikorsky H-37A Mojave Serial 56-148 Register 58-1003 used by US Army Aviation. Built 1960. Aircraft history and location
| US Army Aviation |
|1960-04-08||Sikorsky S-56, c/n 56-148, ff:?|
del US ARMY as H-37A, 58-1003, 08Apr60
redesig CH-37A, Oct 62
conv CH-37B, unk
wfu & soc unk.