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billy brite
Lv 6
billy brite asked in Cars & TransportationAircraft · 9 years ago

Why do some airplanes have positive dihedral in the horizontal stab.? I see it on both prop planes and jets.?

3 Answers

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  • Anonymous
    9 years ago
    Favorite Answer

    It has the effect of a little more lateral area aft of the CG. There is negative lift on a stabilizer. Dihedral will reduce the loss due to a span wise flow of air spilling over the tips. It's the designer/engineers personal choice usually.The improvement is usually negligible. It's kind of like winglets. They look cool and sell airplanes!

  • ht Freerider
    Lv 5
    9 years ago

    Id say stability

  • Pilsner Man
    Lv 7
    9 years ago

    Why wouldn't they have?

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