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So I am trying to figure out the lengths for tail brace wires since we have a non-stock emphannage. I get the R.L and the P.C.L. measurements. Sort of.
http://www.steenaero.com/Products/flying_wires.cfm
It looks like the difference in the 2 lengths is "U" in the figure at the link. So for 10-32 (AN673) that would be 2 * 0.719 or appoximately 1.5 inch total length difference. For a AN661 that is 2 * 1.0 or 2 inches.
This place the rod all the way to the end of the inside of the clevis. This looks that becomes its "minimum" distance. If so you would want to measure this distance after it is completely tensioned. But I also notice that the threads are much longer than required and one end always has longer threads (+1/2 inch). And also the clevis is only threaded to witness hole, so threads past that make no difference at all, even you went past is. So I assume the wire could be shortened by at least a 1/2 inch, if not almost an inch, without any problems.
So I am gathering that there is some flexibility in the range for a given wire but does not appear to be stated anywhere. Like say a 34 inch P.C.L. could be 33-35 inches. I cant image much more than 2-4 turns to obtain very high tension which is only 0.125 to 0.25 on a 10-32 wire.
Is there some guidelines on this somewhere?
gjg
http://www.steenaero.com/Products/flying_wires.cfm
It looks like the difference in the 2 lengths is "U" in the figure at the link. So for 10-32 (AN673) that would be 2 * 0.719 or appoximately 1.5 inch total length difference. For a AN661 that is 2 * 1.0 or 2 inches.
This place the rod all the way to the end of the inside of the clevis. This looks that becomes its "minimum" distance. If so you would want to measure this distance after it is completely tensioned. But I also notice that the threads are much longer than required and one end always has longer threads (+1/2 inch). And also the clevis is only threaded to witness hole, so threads past that make no difference at all, even you went past is. So I assume the wire could be shortened by at least a 1/2 inch, if not almost an inch, without any problems.
So I am gathering that there is some flexibility in the range for a given wire but does not appear to be stated anywhere. Like say a 34 inch P.C.L. could be 33-35 inches. I cant image much more than 2-4 turns to obtain very high tension which is only 0.125 to 0.25 on a 10-32 wire.
Is there some guidelines on this somewhere?
gjg
