>Question - How long does my rear spar have to be, what is the angle of my rear spar, what are the angles to make the rear wafs to (#2 fitting and #3 fitting), what dimension from the bend line are my end mount holes? Steve ++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
Steve, If I understand your question (I've read it at least four times) there is no math necessary. The angles for the rear attach fittings should be in the plans as well as the hole placement. The length of the rear outer spar can be determined by mounting the front outer spar and using a carpenter square across the end of the front outer spar to determine the length of the rear outer spar. The front spar should be 90 degrees to the centerline of the fuselage and the 36" rib at the end of the wing should be parallel to to the centerline. Even that is not critical as you can make adjustments when building the tip. Remember, these are "internal" structural components and have no effect on aerodynamics other than for proper alignment. The total length of the front spar, + or - an inch or two, is insignificant. Just build to the dimentions you have. Is this even close to what you're looking for? Larry Flesner
