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Sonic to Hypersonic – The X-15

The facts, fiction, and body of knowledge the X-15 generated is enormous. School kids should be taught about it as one of the great things the US should be proud of. In fact, I do bring it up with them, but (contrary to what you may have heard) I do have some sympathy...

Overcoming Gravity with the X-13 and ZEL

There’s an old engineer’s joke when something gets dropped. They say “gravity check, still on.” Now I’m not going to distinguish between whether that’s an old joke or a joke for old engineers, but either way, aviation is all about...

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