I've had a Eurofox stop on me just after takeoff.
The guys I rent it offhand in the ops to clean up around 500agl ,which is pretty standard in most things I've flown ,flaps,fuel pumps,CSU setup, so it seemed pretty standard in the Fox .
At around 700agl ( I'd left it a bit later as the circuit was busy ,departing Natfly) I cleaned up the flaps, and switch the electric pump off,,,,,sh1t it started to sputter and stop,,,,after the a second of WTF I undid my last action and it came good,,,,I still did an emergency landing as I wasn't sure what had happened .
On the ground I couldn't get it to do the same thing ,it seemed fine, after I shut down Mick Poole and another eurofox pilot came over and the first thing they said " you turned the elec pump off " , yeh since then the school has the pump on till established in cruise , and I've since flown it and watched the fuel pressure as you switch to mech pump, the needle hits the stop and bobs around there for a good 10-15 seconds before the mech pump gets going.
The only thing I can think of ( and I'd be happy to hear otherwise) is the elec pump is forcing the fuel through faster than the mech pump, when you switch it off the mech pump cavitates for a while before it can get the pressure back up,,,,,
Met