#9 does have anti flip measures build it, however it take time to kick in, and can only be done at above trees altitudes.

E.g. an ill fate attempt of a high speed parking maneuver.

If you manage to Allcarry #9 "flip" while flying at very low altitude and went belly up, with the top dragging the ground.

1) Try ramming yourself into the ground hard. on either directions would do.

2) Make sure you do that until Allcarry #9 does a somersault flip bring to up right.

3) Then hold spacebar alone to lifting Allcarry #9 up above the tree line to allow it to stablized and recover before continuing.