Interesting Australian Ultralight Amphibian Twin

Discussion in 'Aircraft Design / Aerodynamics / New Technology' started by rotax618, Jan 26, 2020.

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  1. Jan 28, 2020 #21

    blane.c

    blane.c

    blane.c

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    It just doesn't seem to me you would need a lot of deflection using the whole wing to bank. Just wonder about stability … I mean if the whole wing starts fluttering.
     
  2. Jan 28, 2020 #22

    rotax618

    rotax618

    rotax618

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    As I reported, this is the third iteration of the design, the designer said that ordinary ailerons were ineffective at low speed, I can see that it is pretty important that a seaplane lands with wings level, the drag of one outer sponson hitting the water could be catastrophic. I fly an ICP Savannah (CH701 clone) which has “Junkers” flaperons , they are very effective at speeds where conventional ailerons wouldn’t work very well. I think Junkers ailerons would work in place of the wing twisting but perhaps they would be too exposed to damage from spray.
     
  3. Jan 28, 2020 #23

    blane.c

    blane.c

    blane.c

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    Dihedral and a large rudder would be effective at low speed as well.
     

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