yellowbird
I'm really surprised to hear that the fuel system (airframe) is considered complicated, I can imagine people having difficulties (before anyone starts asking......myself included) with the engine fuel system. But a bladder divided in 1 large, 2 small reservoirs, a couple of impeller pumps........how complicated can it be?
Doesn't look over-complicated to me, either. Clearly, without pilot intervention fuel should be automatically pumped and supplied to both engines until all fuel exhausted, other than in a leak or other malfunction when maybe one should shut down automatically.
I thought these are diaphragm not impeller pumps? I'm sure I read that and would seem to me to be the better choice with these low fuel flow rates.