zorro9 wrote: Where are the doors on that chopper (H-12) may I ask?? Tks[/color]
They are quickly removable, thin framed plexiglass.
Usually not fitted in hot weather. With a large "greenhouse" it could get
very warm in the cabin, I know from personal experience flying a Bell 47/H-13E.

I would
assume they were standard equipment on the civil Hiller...but they
could have been an extra cost option.
BTW: The UH-12 designation is the civil Hiller model number and
not a U.S. Military assigned designation like the H-19 or H-13 (Bell 47).
The U.S. Army designation for the UH-12 was the H-23.