Cierva Projects

[hesham]

Hi,

the Cierva W-12 was smaller version project of W-11,I spoke
about this helicopter before here;


http://www.secretprojects.co.uk/forum/index.php/topic,449.msg6930/highlight,w-11t.html#msg6930
http://www.flightglobal.com/pdfarchive/view/1947/1947 - 1586.html

 

[Jemiba]

Ah, great ! This find could end the discussion we had here, too, about different designations.
The W-12 really seems to be another type and not just a re-designated W-11T.
Even better !

 

[hesham]

Hi,

here is a patent to Cierva.

http://kulturserver-nds.de/home/hubtest/medien/Typenkartei3953xGUN7x9T3Z7.pdf

 

[hesham]

From Flightglobal 1948,

maybe early drawing to W.14 Skeeter ?.

 

[hesham]

From the site of my dear Stingray,

Just after the war, Cierva were also investigating the use of rotor tip jet drive for helicopters.

From U.S Patent 2673696.