I've been busy and didn't have time to get back till now sorry Here's what I'm getting to; We know that the plane should fly with it's front to back centerline 90 degrees to an imaginary line between the handle and the plane so it will turn loops without yawing around (speed planes can piont "in" a little and get a little more speed but they don't loop). All I'm saying is that the center of drag (including the lines) and the center of thrust should be the same or the plane will try to fly toward the drag. If the those centers were on the same line without lines then we need to add the amount of the lie drag on the outboard side. Bandaids can be used like engine offset, rudder offset, linerake and some others but they will cause other problems when the conditions change like a manuver, going into and outof the wind, going slower at the top of a wingover. So eventhough these bandaids seem to slove the problem under certain stiuations, it will not work throughout. If we can get the drag (including lines) and the thrust on the same line we will know that the problem is somewhere else. If your plane flies at you, points away from you or yaws around in manuvers, (like changing from inside to outside in an
you will know the planes (inculing the lines) aerodynamics is right i that respect.
Topic: drag (Read 2505 times)