As an electrical engineer I envision a system with two fuel
pumps for a 0-200 with no center tank.
It would have two electric pumps.
One would be powered conventionally off the
generator-or-alternator/battery. The other
pump would be powered off a small auxiliary battery. That battery would be on
the order of a pound in weight. It would be charged off the electrical
system of the aircraft. However, it
would be isolated from the rest of the system by a diode (or two diodes in
series for redundancy). A small circuit
would be devised to indicate it is charged and has a button for testing. The
whole thing could be built for $50.
Of course, all the regulatory 337 stuff would be
required and I don’t even know where to begin on that.
Chris
N99674, about a year to go before flight.
