I use the Wren 120 Pro with the Projet III ECU. Splendid combination. BUT. I made this mistake myself once, so this may have happened to someone else too:

1. Normal shutdown with throttle low, trim down until turbine stops.
2. New flight. I forget to raise the trim-but the turbine starts anyway with the throttle stick ...and it shuts off mysteriously while taxing. Luckily not in the air. DOH-a new start and now with trim up...

Do You use flight modes? Well, don´t include the throttle in them because...

1. Normal start with flaps up
2. On the final with full flaps-shutdown. Why? Because sometimes we taxi back with flaps still down and if the shutdown is done then, the flight mode remembers this mode for a shutdown...


Tuomas