What model is this helicopter

[Redland]

Can anyone identify the helicopter in the background???



https://youtu.be/5RZ59c-Ne8o?t=24s

[garyscott]

McDonnell XHJD Whirlaway. First flew in 1944.

https://en.wikipedia.org/wiki/McDonnell_XHJH_Whirlaway

McDonnell XHJD-1 Whirlaway helicopter - development history, photos, technical data

[Redland]

Thanks for the quick answer, I had not seen that helicopter before, Interesting design.

[tottigol]

This one is even earlier.
Used by the Germans during WWII

[Ricktye]

But still not as interesting as the first tilt rotor (CL-84) built in Canada and first flew in 1965! Bell is finally catching up with their tilt rotor 50 years later!

[HeliHenri]

.
First flight of the Bell XV3 (tiltrotor) in 1955.
.

[SansAnhedral]

CL-84 = Tiltwing

Tiltwing =/= Tiltrotor