
01-03-2011, 02:39 PM
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Approved Member
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Join Date: Nov 2009
Posts: 493
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Quote:
Originally Posted by Ernst
The level flight of the aircraft depends on fuel, ammunition (C.G moves slightly), speed, altitude etc. Stop complaining about level flight and learn how to trim your aircraft. The aircraft, even the noobiesfire, do not fly alone.
Sometimes time i think the guys would like to take off, put the legs above the table, the hands behind the head and then light a cigarrete and smoke while the aircraft flies... Maybe you would like to read a book or go to the kitchen and make a snack.
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get shot down by spits a lot?
that would be nice, especially for larger maps where you just want to climb out nice and steady, maybe nip to the loo, make a rollie etc. i've found that trimming the plane for a slight climb, with a bit of slip to counter the torque roll, whilst reducing throttle/pp a bit so the torque effect is a bit less to be quite effective. that or wedging a bit of card in the base of the stick to keep the wings level.
Quote:
Originally Posted by Tempest123
Just a flying note for people citing the downward trim needed on a spitfire to fly level:
-Airfoils gain lift the faster they travel through the air (this is how an airplane is able to take off in the first place), how much lift is based on a number of things including the type of airfoil and shape and area of the wings
-The faster an airplane goes, the more it wants to climb, and the more downward trim is necessary to take the pressure off the control column. (to a point, at very high speeds, shock waves form and this is different, but this is beyond "normal" flight speeds, and usually occurs to piston aircraft only in a dive, and depends on the airfoil shape, ex. p-38.)
-As an airplane slows down, the opposite is true, thus more back pressure is needed, and thus nose up trim.
-As such an airplane in high speed level flight has a nose level angle depending on the aircraft, and in slow level flight an aircraft has a nose up angle. The slower an aircraft travels (i.e the lower the thrust), the greater the Angle of Attack its wings need to hit the air to maintain the same lift and level flight. The Angle of Attack can only be increased to a certain point, beyond that the air separates from the airfoil, becomes turbulent and the wing stalls, no matter what the speed. This is why you can stall a P-51 in a high speed turn (maximum AoA exceeded), do a "snap roll" in a Fw-190, and also the reason the 109 has slats (to keep the air from separating away from the wing surface, thus delaying a stall).
-Many computer simulations don't model this correctly, or if they do it is at least partially. In cruise flight, each change in power setting requires re-trimming the aircraft to relieve the control forces.
-The behavior of the spitfire is normal, and surprisingly, this should also be the case with most of the other planes in the game. An aircraft can fly level at a range of attitudes depending upon its speed.
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the spitfire has always needed nose down trim to maintain level flight though, hasn't it? is the level of trim that much different?
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