phent_get(local)velocity?

phent_getvelocity seems to retrieve a global velocity vector. for my airplane i need the velocity component of the entity's x-axis only. what would be the best way to convert the global velocity vector to a local one? could phent_makelocal be used for this purpose?

i rotated it like that:

phent_getvelocity(my,vel,nullvector);
vec_rotate(vel,vector(-my.pan,-my.tilt,-my.roll));

i think vel.x is what i want then but i am not completely sure?

@ventilator - I am in a similar situation. I need to know the local velocity vector for my vehicle. Using 'phent_getvelocity' I can tell where the vehicle is moving to but I can't determine if it is moving forward or backward.

@ventilator - Hey, that seems to work. I could have swore I tried looking at a physics entities pan, tilt, roll before and it wasn't reading anything. I must have done something wrong though highly unlikely....lol.