Float design safety

Discussion in 'Rules and Regulations / Flight Safety / Better Pil' started by Doggzilla, Oct 13, 2019.

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  1. Oct 19, 2019 #21

    Doggzilla

    Doggzilla

    Doggzilla

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    That’s not a bad idea guys. Foam has been added inside some existing aircraft wings because it helps with fluttering by stiffening the wings.

    In one case someone opened up the wing on their Hummel Bird to enlarge the tanks, and adding foam to the other sections to replace a lost cross member actually resulted in better flutter control.
     
  2. Oct 27, 2019 #22

    litespeed

    litespeed

    litespeed

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    That would be sodium metal- generates a lot of heat, Oxygen, Hydrogen and then goes boom!

    I would go for a large airbag deployed from the top of the cabin to lift the craft from the water.

    This has been done on some rescue boats and works brilliant- brings it back upright. For a aircraft just getting it above the water upside down would be ok.
     
  3. Oct 27, 2019 #23

    litespeed

    litespeed

    litespeed

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    Here is a self righting airbag for a rescue boat.

    Same principle but could be made lighter.

    [​IMG]

    vid of one in action
     
  4. Oct 27, 2019 #24

    BJC

    BJC

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    Does that mean that they tested to a new, higher, Vd?


    BJC
     
  5. Oct 29, 2019 #25

    Doggzilla

    Doggzilla

    Doggzilla

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    I guess you could technically say that. He did test it up to something like 160-180mph without flutter (It was a far more powerful engine than stock, which was the entire reason he was hitting flutter speeds in the first place)
     

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