CrownLJ(at)verizon.net
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 Posted: Mon Feb 12, 2007 3:55 pm Post subject: Coordinated flight was: turn base to final |
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If the ball is not in the center, then you do not have coordinated flight. Don't worry about what rudder or aileron your pushing. If the ball is centered - you are coordinated and can not spin unless you allow the ball out of the center. The reason for the obvious difference with a gliding turn is because of the torque or lack of it with reduced power in the descent and of course; the adverse yaw. The Fox like most airplanes have some considerations built in to counter some of the average effects of torque. This might be in the form of an offset engine mount or vertical stab. If you try a gliding turn with power, you will notice that you don't need as much rudder. Establish a power on gliding turn. Then reduce the power to idle and see how much more rudder you have to use to stay coordinated. (ball in the center) Then add power again and see that you will need to reduce the rudder requirement. A trim tab is only useful to relieve the rudder pressure you leg has to endure a single power setting/speed. (assuming its a fixed tab) It might be handing at cruise speed for long cross country flight, but would not do anything in the pattern. I would encourage you to just get very comfortable using you feet to keep the ball in the center. (coordinated) Have fun and try different combinations of power and airspeed, and change them as you maintain the turn. You will notice the difference even in straight flight, but it will not be as apparent because of the lack of adverse yaw.
larry
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