[phil]

hello mike,
I am not so a good trtanslator but in big lines its:
the props are turned on by wind
the start and stop from it is happening due to an electrique and pressureoil system
you have a switch T1 with sign on and off and this switch is located left side from pilot.
the needed oil is taken from the running back oilpipe that is located from a switch from the sturzflug brakes.
to stop the prop you can only do this after the dive when your current speed max 320 km/h is.
its not "a perfect" translation but its in big lines hopefully you can understand and maybe other readers have better translation possibilities.
kindly regards
phil