Spot on, Tiger_mate!
The Hiller YH-32/HJ-1/HOE-1
Hornet was the first production ram-jet powered helicopter,(McDonnell's XH-20 "Little Henry" was the first ram-jet powered helicopter), first fiberglass fuselage, first "gun-ship" helicopter platform, (nick-named "Sally Rand"), and perhaps the first helicopter to use all-metal rotors.
Also, the prototype did not have a tail-rotor. A rudder was attached latter, then replaced by elevators. The collective lever was moved side-to-side to control yaw. A tail-rotor was ultimately added.
