robert chamberlain Posted December 31, 2012 Share Posted December 31, 2012 I am converting an old glider to electric power. I know I can use a protractor to measure the off set(right and down)but I was wondering what the math would be for duing it another way. With the prop horizontal, one could measure the distance from the right hand tip to the wing and do the same for the left hand side. Can't this distance be converted to degrees? Doing it the hard way is so much more fun! You think 3 degrees wiil be enough?----Bob in Kansas Quote Link to comment Share on other sites More sharing options...
Old Geezer Posted December 31, 2012 Share Posted December 31, 2012 Unless you're using a really meaty motor you shouldn't need much Right Thrust at all, but when it comes to Downthrust - however much you've built in you'll probably need o double it ! The (easier) alternative is to mix elevator and throttle to taste - very satisfying once you've got it right. Quote Link to comment Share on other sites More sharing options...
Bob Cotsford Posted December 31, 2012 Share Posted December 31, 2012 near enough for setting a thrustline - 1 degree slope is around 1/64" per inch - ie across a 6" prop 2 degrees would be 6 (prop dia) * 2 (degrees) * 1/64 = 3/16" difference from one tip to the other. Quote Link to comment Share on other sites More sharing options...
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