The USN figures out how to make the XFV-12A work

Nothing much. Perhaps it would not even have gone into production, in the real world the only contracts that get through are the politically motivated ones, just look at the F-22. Besides vertical flight was impossible for that Air-craft, the laws of design and physics are a cruel thing.
 

NothingNow

Banned
Given how impractical the thrust-augmented wing concept turned out to be, it's gonna require some big design changes.

Like becoming a more conventional design along the lines of the Yak-38 and Yak-41M or the VAK 191 and Harrier series.

But, if it does get through, it'd probably be used as a STOVL fighter off the Iwo Jima, Tarawa and *Wasp-class Landing Ships, and maybe it'd be exported to a couple countries for use on ASW Carriers instead of the Harrier.
 
Hans von Ohain was a consultant on the project, another stab in the back to Luft46 dreamworks. The XFV12, which I named the "Camilla", had as much hope of success as the Avrocar, but while the Avrocar led to the hovercraft, the Camilla technology is unlikely to lead anywhere. Perhaps an advanced vacuum cleaner.
 
One of the main problems with the design, was its fairly small useful load, as the wing design meant that all weapons would have to be carried on the fuselage.
 

Archibald

Banned
the rockwell XVF-12 was based on a technique that did not worked as expected. Rockwell had pinned a lot of hopes, they believed it might been the best thing since bread came in slices. IT was not to be.

The XVF-12 Grumman competitor was the Type 200 or 201, a much more reasonable concept with two liftjets and a tilting exhaust - you guessed, somewhat an American Yak 41.
http://www.whatifmodelers.com/index.php?topic=16195.0;
I did a 1/72 scale model of it a while back using a Mirage 2000 fuselage and a X-35 exhaust.

103_3131.jpg
 
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