The jump takeoff version of the Kellett KD-1 was the XO-3 with fixed rotorhead and swashplate cyclic control.
GE’s Schenectady research center used an XO-3 as a dynamometer for measuring the cold characteristics of the rotor from the Doblhoff tip jet helicopter. The XO-3 had a 60 HP rotor drive.
Igor Bensen, who was project engineer for GE’s tip jet program, related the story of landing an XO-3 on a frozen lake in Schenectady, and being unable to get enough traction to start the rotor, having to be towed off.
GE supplied the propulsion system for what became the Hughes XH-17 tip jet helicopter. The XH-17 began as a Kellett program that was purchased by Hughes.
It seems we had that one before, I just didn't remember (my age shows....;-( http://www.rotaryforum.com/forum/showthread.php?t=41927
It's the same URL though and yes XXavier I am also having problems when I tried to download it again, seems the site went offline this morning
The rest of that journal issue is amazing if you have the time to look at. While one General is quite astutely looking at fairly complicated aerodynamics and doing a great job of explaining it to cannoneers nearly 80 years ago (and showing a better understanding than some of our more recent self-styled gyro designers), there's also a Colonel who raves about how much better horses are for moving artillery than trucks "because of the better vision in the dark which horses possess as compared to chauffeurs." Amazing stuff.