First flight of the prototype (XHR2S-1) of the S-56/H-37 Type series
Friday, December 18, 1953
This is a Notable Operational milestone.
Description:
XHR2S-1 was the designation assigned to the prototype by the US Navy. Jimmy Vine and Jim Chuders were the pilots.
Source: S-56/HR2S-1/H-37 Helicopter, SIkorsky Product History, Igor I. Sikorsky Historical Archives, Vinny Devine, as of Jul 18 2016
