Thread: mh27
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Old 10-07-2012, 06:11 PM
Join Date: Apr 2007
Location: TRACY, CA
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Default mh27

This forum needs somthing fresh to crash, I know there has been a few attemps to build a quickie with the mh27 airfoil, and the results didn't pan out apparentley. Coffey, a good friend, has a mh27 alum mold and we had to give it a try, so he sent the mold to Sam and had him build a couple wings, one with the ailerons out on the tips and cut in a little deeper. One of the complaints of the mh27 is it looses it's ailerons at slow speeds, hopefully this might help. The other wing was built more conventional. The other issue with the mh27 was i'ts a bit pitch sensitive, Coffey knew the builder of the mold and thought the wing may have some washout. If this wasn't taken into account while building, it could pose some of these issue. Sam did a great job as usual laying up a couple wings. The wing does have some wash out, two tenths of a degree. The leading edge was pretty sharp, this too may have posed some problems. I've set the wing up a little over two tenths positive and sanded some more radius in the leading edge, the fuse is a copy of a vortex, and the tail is a copy of one of Sam's with a skinned hinge, it's not quite finished, but I thought I'd post some pics. ill post more pics after its cleared
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