I've recently tried building spaceplanes. Do you have any advice on how not to make them yaw and fall off the runway before takeoff? I've been having that problem since making planes became possible.
4 wheels help with that and twitch adjustments also help.
also, your takeoff speed should be between 65-110 m/s
if you arent taking off in that bracket, something is off, either not enough lift, you being too conservative with take-offs or an iffy design.
also, i'd like to point out that romfarer's lazor system is a beautiful complement for plane control. you can have autopilot of sorts, but i prefer using just its "dampen input" option sometimes as well. basically, just uncheck the boxes near roll, pitch, yaw, leave dampen input on and enjoy the smoothness of the flight.
also, if you think its cheating, well, you know where you can stuff that sentiment and we shall not discuss it any further.
also, as a side-note, i'm talking about just general kerbin-bound spaceplanes, havent managed to get one to orbit yet, due to lack of interest, to make it a proper SPACEplane