Getting your wing shape is no big deal. You do not require a computer program. Get a roll of shelf paper. Roll off 5 feet of it and draw a line down the center. On let us say the left hand end mark the leading edge. Your coordinates are listed usually as + and - on varrious % of the cord. If you are using a 48" cord, a hand calculator will quickly give you the location on the cord line. Measure up using a square and mark the spot. Do the same for the downward measurement.After you have completed all of the marking take a welding rod and bend it to get the best fit on the marks. Draw along the rod with a pencil and Bingo ! you have an airfoil. Why put off to spring - do it now. Harold Woods, Orillia,ON.Canada haroldwo...@rogers.com
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