Airplanes deploy revers thrusters when landing which are basically just shaped metal shields that move into place behind the engines to provide reverse thrust and slow the plane.

But adding a fan on a sailboat is seen as stupid and doesn't work.

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[–] 3 points 3 weeks ago* (4 children)

You might want to check your physics because that's pretty much exactly how a propeller works ...

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  • [–] -1 points 3 weeks ago (3 children)

    Show me one airboat with a sail on it, you dunce.

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  • [–] 2 points 3 weeks ago* (last edited 3 weeks ago) (2 children)

    The thing about air boats is that they don't need sails.

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