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    Could the Inflatable Aircraft Concept Be Updated/Modernized?

    Back in the 1950s, Goodyear developed its Inflatoplane concept for the US military, using its newly developed Airmat technology. The idea was to create a collapsible/portable plane that could be airdropped to downed pilots for escape, but it was abandoned as alternatives like helicopter rescue...
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    Moderator Approval Required?

    Hi, I've just registered and joint the forum, and I was enjoying the conversation in a couple of threads I'd started. But suddenly I'm seeing that my message postings require moderator approval when I post them, whereas they weren't before. I just want to know if I'm doing something wrong, or if...
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    I've just registered, and have been enjoying discussions in a couple of threads I started. However, suddenly my posts are requiring moderator approval, when they weren't before. Is there some rule I've triggered here?
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    V-173 / XF5U - Flying Flapjack

    Another concept that interested me was the Vought V-173 / XF5U Flying Flapjack My understanding is that this VSTOL aircraft concept was also capable of very high speed, and I was curious as to whether it could be built in a more updated form as an ultralight. The original aircraft had...
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    STOL Amphibious Aircraft Using Ground Effect

    We've all heard of aircraft exploiting wing-in-ground effect. Here's a college prof using some wooden models to demonstrate: Here's a real life aircraft called the Airfish: So this design looks interesting, and I was wondering if it could be the basis for a small ultralight amphibious STOL...