At the beginning of the transition, the aircraft always lowers its head and then accelerates, which makes it often hit the ground when the altitude is insufficient.
I set Q_OPTIONS bit 0 Level Transition.
The following is the flight log. There is a probability that the conversion will not succeed.
https://drive.google.com/file/d/1bZqGekaZiuvZSPLY6HnTZ89UXkiqwbIo/view?usp=sharing
https://drive.google.com/file/d/1hMV1SdD3c_jND4oI69srx1Agz8SeMKtv/view?usp=sharing