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Trim tab and congrats

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wnorth(at)sdccd.edu
Guest

Posted: Mon May 26, 2008 8:52 pm Post subject: Trim tab and congrats

Hey Walt,



Congrats, now you can finish building the other 95 percent...



;{)



Matt,



On the trim tab it really doesn't matter, adjust it as a part of the flight

testing. 



RVs generally do not need a lot of nose down trim because the planes go down

hill very easily. When trimmed for nose down, VNE full power my tab is only

up about 3/16", and cruise (140kts) level it is at neutral.



Leave it where it is and when you fly it, see what speed the max nose up

(tab down) travel gets you.



Mine is adjusted to give me about 60 kts hands free power off max aft CG

loading, max tab down. The idea is that if I let go of everything it won't

automatically stall when at max nose up trim.



With full fuel and me solo (most forward CG) I have to add a touch of

pressure to hold 70kts on final in max nose up trim, but it will easily stay

below max flaps speed hand free power off.



W

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