1941 Bell & 1951 Northrop Pogo Fighters

Chris707

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From a 1941 Bell patent:



and a turboprop 1951 Northrop design:


Chris
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http://www.dataviewbooks.com/aerospace.html
 

Sentinel Chicken

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Wingknut

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It looks like the 1941 Bell design was the subject of a Modern Mechanix (March 1948) cover as a 'Convertible Jet Helicopter'. For full cover, see link at:
http://blog.modernmechanix.com/2007/08/30/convertable-jet-helicopter/
Cheers,
'Wingknut'
 

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Retrofit

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It looks like the 1941 Bell design was the subject of a Modern Mechanix (March 1948) cover as a 'Convertible Jet Helicopter'.
The title "Convertible JET helicopter" can be misleading. In Bell's patent n° 597.246 (Application date: May 23, 1945. Complete specifications accepted: January 21, 1948), the powerplant was a double-row radial piston-engine driving the contraprops.
Interesting to compare this design with Professor B.N.Yurjev's KIT-1 STOL project dated 1946 and powered by a Klimov VK-108 piston-engine.
 

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Justo Miranda

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Chris707 said:
From a 1941 Bell patent:



and a turboprop 1951 Northrop design:


Chris
-------------------------
http://www.dataviewbooks.com/aerospace.html
Nice drawings Chris
 

Justo Miranda

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Retrofit said:
It looks like the 1941 Bell design was the subject of a Modern Mechanix (March 1948) cover as a 'Convertible Jet Helicopter'.
The title "Convertible JET helicopter" can be misleading. In Bell's patent n° 597.246 (Application date: May 23, 1945. Complete specifications accepted: January 21, 1948), the powerplant was a double-row radial piston-engine driving the contraprops.
Interesting to compare this design with Professor B.N.Yurjev's KIT-1 STOL project dated 1946 and powered by a Klimov VK-108 piston-engine.
Some drawings of the Kit-1 here
 

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Stargazer2006

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Chris707 said:
From a 1941 Bell patent:
Picture of the Bell "vertical riser" has disappeared from the original website and cannot be retrieved. Could someone please attach it to this thread for future reference? Thanks in advance!
 

Vladimir

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Some drawings of the Kit-1 here
[/quote]

Many thanks, Justo!
 
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