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Originally Posted by SlipBall
Could you post the reference material
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Of course:
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Lowering the flaps makes the ailerons feel heavier and slightly less effective, and causes a marked nose-down pitching moment, readily corrected owing to the juxtaposition of trim and flap operating wheels.
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Longitudinal Trim
Five three-quarter turns of a 11.7 in diameter wheel on the pilot's left are needed to move the adjustable tailplane through its full 12-degrees range. The wheel rotation is in the natural sense. Tailplane and elevator angles to trim were measured at various speeds in various condition; the elevator angles were corrected to constant tail setting. The airplane is statically stable both stick fixed and stick free.
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RAF Royal Aircraft Establishment (RAE) Farnborough handling trials,Bf.109E Wn: 1304. M.B. Morgan and R. Smelt of the RAE, 1944
I am aware that this are British tests of a battle-damaged airplane that was apparently not trimmed correctly, but the actual statemens are only re the actual operation and in agreement with the manual.
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There were no movable trim tab controls on the ailerons or rudder, although both had fixed tabs that could be bent on the ground. Pitch trim was affected by changing the stabilizer incidence thrugh a range of 12 degrees. The design scheme was that both the flaps and the stabilizer were coordinated mechanically from two 12-inch wheels mounted concentrically on the left side of the pilot's seat. By twirling both wheels in the same direction the pilot could automatically compensate for the change of pitch trim due to lowering or raising the flaps. Differential coordination could be set by moving one wheel relative to the other.
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A series of mock dogfights were conducted by the British in addition to the flight test and the following was revealed:
If the airplane was trimmed for level flight, a heavy push on the stick was needed to hold it in a dive at 400 mph. If it was trimmed into the dive, recovery was difficult unless the trim wheel was wound back, due to the excessive heaviness of the elevator forces.
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both quotes above from 'The Best of the Breed by Col. "Kit" Carson Airpower, July 1976 Vol. 6 No. 4'