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Sikorsky S-61F prototype and compound helicopter projects

mil

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Someone has more information on design Sikorsky S-61F. I would like to have more pictures than well-known on the Internet. Thanks
 

Jemiba

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From AviationWeek 1965:
 

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mil

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Jemiba
Thanks for pictures Sikorsky S-61F, I have enjoyed very much, this good addition in my library if will is at whom pictures to me pleasantly. Thanks
 

Jemiba

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From Aviation Week January 1965 a development of the S-61F as a stoppable rotor
VSTOL aircraft:
 

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borovik

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mil said:
Someone has more information on design Sikorsky S-61F. I would like to have more pictures than well-known on the Internet. Thanks
Reconstruction from PK Aero Revue, and photos of Air Pictorial
 

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Caravellarella

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Oh no, I've gone back into a generic topic :eek:

Dear Boys and Girls, here is an article in French about an unidentified Sikorsky high-speed helicopter "project"......

The article comes from the 30th June 1961 issue of Les Ailes......

Terry (Caravellarella)
 

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fightingirish

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One of a number of Sikorsky design studies for a large compound helicopter.
Source: Flying Review International, January 1965, Volume 20, Number 5, page 8
 

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hesham

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hesham

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And;
 

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Jemiba

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Hello Hesham, used your link, but it led me to a paper about plastic/composite structures ...
Cannot improve the quality, probably it isn't better in the original source, but I stitched
the parts together.
 

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hesham

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Hi,


here is a Sikorsky S-61F NH-3A,Who can collect the pieces;


http://www.dtic.mil/dtic/tr/fulltext/u2/726764.pdf
 

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hesham

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And;
 

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Stargazer2006

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hesham said:
Who can collect the pieces

As a matter of fact I did, back in 2012. These images rang a bell, so I went to my S-61F folder and found the following (only did one of them, though):
 

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hesham

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Hi,

https://apps.dtic.mil/dtic/tr/fulltext/u2/665427.pdf
 

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