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How to make my plane not pull down

532 CremosoMaster  3.9 years ago

So, i'm having this problem with some of my planes, where thei are pulling down and i end up needing to use a lot of trim, how do i solve it?

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    40.6k OPaiTaOn

    gira as asas na cauda em 1 ou 2 graus e deve resolver senão coloca mais graus se ele for um avião lento (primeira guerra mundial ou biplanos) ao invés de deixar a asas principais como simetric ou semi simetric deixa ela como 'flat bottom'

    3.7 years ago
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    37.0k Ruvie

    If you want to not affect the maneouverability of the plane that much. Just rotate the elevators so you have a fixed trim rotation, trial and error. Dont rotate too much, just around 1 degree is fine

    +1 3.9 years ago
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    29.9k ChiChiWerx

    What you’re mixing it up with is the build screen that will show the CoL moving aft when you increase the tail area. SP doesn’t really show the CoL correctly for conventional (tail aft) aircraft, it should only shows the main wing lift as the tail can be used in either capacity, nose up or nose down. But it doesn’t, it includes all the wing area, main wing and horizontal stab included, probably because there’s no way to designate a “main wing” vs. “horizontal tail”.

    +1 3.9 years ago
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    @ChiChiWerx oh i get it now thank you mr

    3.9 years ago
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    29.9k ChiChiWerx

    @CremosoMaster nope. By angling the leading edge down, the net lift will the down at the tail, which lifts the nose more and more with increasing speed. It’s exactly the same way it works when making a nose up pitch movement.

    3.9 years ago
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    @ChiChiWerx just a question, isnt this going to give the back of the plane more lift, thus making the plane pitch down even more?

    3.9 years ago
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    @ChiChiWerx oh thank you

    3.9 years ago
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    29.9k ChiChiWerx

    @CremosoMaster yes, another way of saying that, or angle the stabs with the leading edge slightly down a degree or two.

    +1 3.9 years ago
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    @ChiChiWerx you can cant your horizontal stabs slightly, a couple degrees.
    You mean changing the angle of atack?

    3.9 years ago
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    29.9k ChiChiWerx

    You can also reduce the area of your main wing. There are lots of ways of doing so.

    3.9 years ago
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    29.9k ChiChiWerx

    Many ways: More tail (horizontal Stan) area, reduce the distance between CoL and CoM, you can cant your horizontal stabs slightly, a couple degrees.

    3.9 years ago