Humble Oil and Refining Company

Model Types

Model	C/N	Built	ID
S-55	0882	1955	N743A : Sikorsky S-55 c/n 55-882, ff:?; del Humble Oil as N743A, 25Jun55.
S-55B	0883	1955	N744A : Sikorsky S-55 c/n 55-883, ff:?; del Humble Oil as N744A, 25Jun55.
S-55	0884	1955	N745A : Sikorsky S-55 c/n 55-884, ff:?; del Humble Oil as N745A, 25Jun55.
S-55	0897	1956	N746A : Sikorsky S-55 c/n 55-897, ff:?; del Humble Oil as N746A, 1956.
S-55	0910	1955	N747A : Sikorsky S-55 c/n 55-910, ff:?; del Humble Oil as N747A, 27Sep55. : w/o 31aug02 Lythe Vreek, USA
S-55	0981	1956	N752A : Sikorsky S-55 c/n 55-981, ff:?; del Humble Oil as N752A, 13Jun56. : S-55T C-GRXA
S-58B	0530	1957	N863 : Sikorsky S-58B, c/n 58-530, ff:1957; del Humble Oil as N863, 04Ma ...