outrunner motor incidence - RCCanada - Canada Radio Controlled Hobby Forum
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Old 02-22-2007, 12:22 PM   #1
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outrunner motor incidence

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need info how do I get the up or down, +_ - incidence on a out runner motor without useing fancy jigs or elaberate tools what I need is 0%up or down i dont realy need to what% as long as it is at 0 up or down regards hyflyer9.
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Old 02-22-2007, 01:24 PM   #2
Ed Smith

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Motor incidence is usually set relative to the wing incidence. With this in mind set up the airplane with wing attached on a flat work surface. Set the wing incidence parallel to the work surface. Here I must add that if the work surface is not level do not set the wing with a spirit level incidence meter. Measure the height of the leading edge and trailing edge centre lines from the work surface..

With the airplane set up as described check the squareness of the motor mounting to the work surface using a set square or a machinist square or anything that has two sides at 90deg to each other.

If the motor mount does not lend itself to this setup then install the motor with a prop on it. Set the prop in the vertical position and again using a square measure the distance from each prop tip to the square. For horizontal alignment, with the prop horizontal measure from the prop tips to the wing leading edge.

Ed S
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Old 02-22-2007, 03:56 PM   #3
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For my foamies and stuff, I just use the T.L.A.R. method...That Looks About Right! From, there I adjust after each flying session by using small washers as shims under the corner of the motor that needs adjusting!!

I know it's corny but......it's easy!!

On my small balsa electrics, most of them have right/down thrust built into the motor boxes, which I can still adjust using the above shim method. I've had no problems for several years doing this.
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