Helicopter pic quiz

I was reading in a CH-1 link that a specially lightened one achieved the world height record for helicopters …about 30,000 ft !!!

Then the french allouette 2 got it back at 36,000 the next year !!

It was said that the Cessna flew so high it left a contrail which was a world first for a chopper!!
All this from a recip motor too, not a turboshaft !!

Well, I was amazed anyway !!

Pity it didn’t work out for Cessna in the end. I think it’s a really cool looking helicopter.

Interesting links:

Cessna Skyhook

Cessna CH1 Helicopter

Can we have more information on this?

I don’t doubt it exists, but it looks pretty unfeasible.

Where’s the drive to the rotor head, for instance?

And, how did they manage to cram such complicated engineering into such a small space, yet still retain the strength necessary to make it work?

Indeed, did it survive long?

Yep!

Cessna Skyhook, 270 HP Continental.

(D*mn, this forum amazes me time after time :D)

Tiz a Cessna CH-1