Utility observation helicopter for US Army, 4 built. Two modofied into S-59 / XH-39 turbine powered prototypes.


List of Operators of Sikorsky YH-18


From Organisation with model YH-18



Construction Numbers on database of YH-18

4YH-18




Construction Numbers

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C/NYearHistory
52-005 1951 US 49-2888 : Sikorsky S-52-2, c/n 52-005, ff:?; acc 29Mar51; del US +
52-006 1951 US 49-2889 : Sikorsky S-52-2, c/n 52-006, ff:?; acc 29Mar51; del US +
US N54066 : S-52-2 wfu & reg US as S-52-2, N54066, unk.
52-007 1951 US 49-2890 : Sikorsky S-52-2, c/n 52-007, ff:?; acc 29Mar51; del US +
s-59 modified to S-52-5, YH-18B configuration, unk; modified+
26aug54 XH-39 set a world speed record for a helicopter+
52-008 1951 US 49-2891 : Sikorsky S-52-2, c/n 52-008, ff:?; acc 17Apr51; del US +
s-59 modified to S-59/XH-39A prototype, c/n 59-002, 49-2891,+
rtnd to YH-18A configuration, unk.
US N7741 : S-52-2 wfu & reg US as S-52-2, N7741, unk.
4 C/N.