sentences:  The type certificate is now held by the FH1100 Manufacturing Corporation of Century, Florida.In October 1960, the Army submitted a request for proposals (RFP) for the Light Observation Helicopter (LOH).Hiller Aircraft (Hiller), along with 12 other manufacturers, including Bell Helicopter (Bell) and Hughes Tool Co. Aircraft Division (Hughes), entered the competition, submitting their designs to a Navy team for evaluation.