Back Hiller HH-120 "Hornet"
1950

Hiller HJ-1

Side-by-side two seat ultra-light helicopter with two Hiller ramjets attached to the ends of the rotor blades. No tail rotor. Fixed tricycle u/c. One Prot. N6728C.

R.Simpson "Airlife's Helicopter and Rotorcraft", 1998

Hiller HH-120

Comments 
Richard, e-mail, 27.05.2015

That is likely Frank W. Peterson, Hiller's chief test pilot, in both of these shots. He was the first to fly the Hornet.

Mickey, e-mail, 27.09.2011

can someone give more info on this please

polo, e-mail, 13.06.2011

learn from here!

jamil alnouman, e-mail, 19.01.2010

i need to know the aerodynamics relation between the ramjet and the rotor blades

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