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01-31-2005 | 01:54 AM

#323

KeithB

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From: Garland, TX

RE: Impact

Quote:

ORIGINAL: Derek.Koopowitz

Andy,

I'm very close to "glueing" everything for my stab so I just want to make sure that I've understood you correctly...

Extended a line from the top of the chin cowl all the way back to the stab (30mm below the middle of the stab tube) - using this as my "center line". Propped up the model so that this line is perfectly horizontal from nose to tail and then I set the stab incidence to 0 based on this reference point.

Am I correct in my assumption of your writing?

Quote:

ORIGINAL: MTK

Derek that's the same as placing a 33.5 mm block under the tail post, with the front of the fuse blocked up as Andy says. The fuse bottom will need to barely touch the building surface. That's is the correct factory fuse angle for things to work out correctly in knife edge. The stab needs zero and the wing about .25 positive.

MattK

Matt,

I've measured both the method that you've described above and Andy's suggested method and for me they do not come out the same as you suggested. If I shim the tail 33.5 mm then the height of the top of the chin cowl is closer to 40 mm below the centerline of the stab tube.

Are you sure these two methods are supposed to be the same? If so, please explain.

Thanks,
KeithB

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