incidence question, for geometry wiz's

[David Flynt]

Terry,

I did not exactly follow where you want to measure, but I believe that the
answer is raise the leading edge 0.0916 inches above wing center line, which
is about 3/32.

Math:
tan (angle) = opp/adj
opp = adj * tan(angle)
opp = 7 * tan (3/4) = 0.0916

David Flynt
  -----Original Message-----
  From: discussion-request at nsrca.org [mailto:discussion-request at nsrca.org]On
Behalf Of Terry Brox
  Sent: Friday, January 17, 2003 9:05 PM
  To: discussion at nsrca.org
  Subject: incidence question, for geometry wiz's


  For all you mathematical intellectuals, I dont have an incidence meter
that I feel too good about, so here is my question: I have a datum line
drawn on the side of a fuse, a line parallel to the datum through the wing
tube, and the distance from the center of the wing tube to the leading edge
is 7". The plans call for 3/4 degree positive incidence. What is the
measurement from the parallel line (to datum) to the center line of the
root?
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