^ Ohmygosh another Turtle!!!!! In all seriousness though. Well for one thing, you should use about 2 intakes for each engine, an you typically only need 1 engine, 2 engines are dangerous at high altitudes, only use 2 engines if you have a heavy plane. Also the amount of wings depends on the mass of the plane. Once you get the hang of it it's not too hard. Also, if your plane isn't lifting of, make sure your rear landing gear is JUST behind the COM. Also, only use RAM intakes, the other ones are heavy and make planes unstable. Typically having too much drag is from overbuilding, KSP calculates drag not on the shape of your design but the parts on you design, so a plane with a flat nose would go faster than a plane with a nose cone, because the nose cone is another piece.