In my version, all the aeroplanes start with their tails up, that is ok for tricycles and float planes, but not for tail draggers.
If you hold full up elevator and give short burst of throttle, the aircraft will run forward perhaps one half metre, and the tail will slowly settle. Then take-offs can be most realistic as the tail comes up as the take-off speed increases.
Sorry if everyone else knows this - I've just discovered it.