Comments by "Titanium Rain" (@ChucksSEADnDEAD) on "XP-55 Ascender - The Backwards Fighter" video.

@donaldsalkovick396 moving canards are a thing, yes.
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@johnteeling4679 That's not necessarily true. The VariViggen and VariEZE designed by Burt Rutan are canard controlled aircraft made to be homebuilt and use mechanical linkages for the controls, not a fly by wire computer. What happens is that on modern fighters the canards are not placed to prioritize maximum stability but to allow quick departures from stable flight. So the canards are controlled by flight computer and move on their own. On the Rutan designs the canards are placed for stability.
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@ratherbefishing4225 Early jets using canards had stability problems, but these were solved with the close-coupled canard design. So it's not as simple as saying "canard jets are unstable" because it all depends on the design and intent. Rutan designed a propeller canard aircraft for stability and it was successfully flown with a jet engine until the unfortunate crash caused by build defects. Adding a jet engine does not suddenly make canards inherently unstable, but early jets with canards had design issues that could only be dealt with by changing the design or computerized flight control.
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@ratherbefishing4225 I don't see how that matters considering that you can make stable jet powered aircraft. Either way, there was a jet powered VariEZE - that crashed from structural failure caused by lack of resin impregnation in sections of the wing fiber weave, not flight instability - and a rocket powered LongEZE.
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