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1941 Bell & 1951 Northrop Pogo Fighters

Chris707

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From a 1941 Bell patent:

verticalriser.jpg


and a turboprop 1951 Northrop design:
northropvertical.jpg


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

Sentinel Chicken

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Want to see a bigger size image of this design?

NorthropN63.jpg


THEN SUBSCRIBE TO SCOTT LOWTHER'S AEROSPACE PROJECTS REVIEW, dammit! Now!


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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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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!
 
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Wingknut

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I think this is the Bell 1941 patent image - if not, I apologise in advance.
EDIT: and here's a link to the patent: https://www.google.ch/patents/US2382460
 

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Vladimir

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

Many thanks, Justo!
 

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