Engine_type in aircarft.cfg

[AniSkywalker]

4 is reserved for rockets Are there any method to turn it on Only it could be fly like a rocket do you know

[Felix/FFDS]

IT is my understanding that the rocket type is not (directly) supported in the FS engines.  I believe it's there because of the commonality with the Combat Flight Simulator series...

but then, I could be wrong.