USAF S-65 trainer version converted from former USMC aircraft List of Operators of Sikorsky TH-53A From Organisation with model TH-53A 1966 US Marine Corps S-65 H-53 282 1966/12 1968 US Air Force S-65 H-53 78 1968/08 Construction Numbers Help Us C/NYearHistory 65-015 1966 151698,66-14468 65-018 151701,66-14470 65-046 153277,66-14471 65-060 153291,66-30043 65-117 153731,66-14472 65-118 153732,63-13694 65-120 153734,67-30046 65-122 153736 65-130 154867,67-30052 65-139 154876,66-14473 66-14469 11 C/N.
151698,66-14468 
