Tailsitters

[publiusr]

Weren't there some plans for a jet to surround the rocket and have a common exhaust? Not quite a tractor rocket but perhaps enough to limit blast effects?

I have often thought about "jacketed" thrust streams where colder exhausts buffer nozzles from a hotter, inner-core stream...

 

[Scott Kenny]

Weren't there some plans for a jet to surround the rocket and have a common exhaust? Not quite a tractor rocket but perhaps enough to limit blast effects?

I'm not aware of any, but that doesn't mean they don't exist.

I have often thought about "jacketed" thrust streams where colder exhausts buffer nozzles from a hotter, inner-core stream...

That's usually done to increase total mass flow, as a ducted rocket.

 

[Tim52413]

I have another question: what did the Goodyear GA-28B chassis mechanism look like?

 

[Stargazer]

The March 1952 issue of Air Trails discussed what the called "Convertaplanes" (note the "a") and showed a variety of designs beautifully illustrated by Alfred Owles. Among them were three tailsitters:

• the first one looks like a direct development of Arthur Young's Model 50 design for Bell Aircraft, with contra-rotating props;
• the second one, a very interesting design, has the contra-rotating propellers integrated within the airframe, and the landing gear retracting completely inside a pointy dart-like extension at the rear; it could also be from Bell, but it's difficult to know for sure;
• the third design, which appears on the cover, is similar in concept to the previous one, but with tip-jets on the rotors instead.

 

[H_K]

NASA has some more recent VATOL studies (1970s/80s) which are interesting.

One of them was Vought’s Superfly series, discussed here: https://www.secretprojects.co.uk/threads/vought-ltv-sf-106-and-sf-121-superfly-vatol-fighters.15491/

 

[mrhopkins83]

Colleoptere

Puffin electric vtol

 

[hesham]

From Vstol.org,

the SFECMAS.