- Sep 17, 2008
ULpower's UL260 uses a 30-amp PM generator and rectifier-regulator. The engine and fuel pump alone eat up 15 amps. Seems that EFI and EI need plenty of power.I forgot to add 'auto engine' and I guess I should have BOLD/CAPITALIZED/flashing neon colored the 'emergency' part.
While a second Lithium battery might be a better bet, we're talking emergency situations. It doesn't need to be perfect, it just needs to do what it needs to do. Say 6-10A for a fuel pump, an amp or two for the ECU, a couple for the coils, say 30-40A for an engine and radio on an emergency bus. Car motors need a lot of gadgets to run... I've accepted any/all performance hits for the simple ability to actually afford to be able to fly.
That 'minipod' was 2lbs for 4A.
Duralast Gold New Alternator 14130N 40A, 11lbs with pulley. Not a huge penalty. You could shave off some weight. Getting it to spin 2000rpm to get enough out of it... that's might be an issue.
Batteries age, and need to be maintained/charged. A second alt. would just sit there until you needed it.
UL260i | ULPower Aero Engines