Come on, 212man, if an engine fails on a french heli, the a/c will yaw left as the tail rotor Nr reduces no? Yes! If the aircraft then sinks while the Ariel spools up and the pilot grabs a handful of lever, the a/c will eventually lurch skywards with the inertia in the blades, indicated by a greater coning angle - yes? do we really want a discussion on fenestron stall - ask 24 heli pilots how to navigate and you'll get 25 answers. Ask 24 dum de dum about fenestron whatsit and you'll get hundreds. Some of them, like purple pitot, will get it totally wrong! Tried to post something like this just now - didn't seem to work. If you get a duplicate -SORRY