Yah - I kinda guessed that's what you were doing. With the two Turbines that far apart on the A-10, I wouldn't be surprised it they started to rudder-steer the plane if they were two far different in thrust at any point in time.
LoL@fixing your old FADEC's with a ball-peen hammer. Guess they're *really* good and fixed now...[:-]
Interesting comment about putting a valve in your gas line - my JJ-3000 starts really easy. I do the gas totally manually - direct from the bottle into the Festo near the Turbine. As soon as I see "Glow Test" on the monitor, I open the valve on the bottle - she spins and goes 'pop' straight away, and really climbs the revs quickly.
One thing I have noticed, though, is that it seems to stay on 'Fuel Ramp' for ages before I finally see "Running" on the Monitor - about 1/3 of a litre of kero. There's probably something/s I can set in the FADEC to get it to ramp-up a bit quicker.
But I'm really happy with my starts these days - smooth as silk and glitch-free. I'm hoping Turbine #2 will spool-up just as easily. This weekend should tell
Fixing the fuel-pump was an interesting exercise. I have always been interested to know what goes on inside one, and you'd be amazed at how tiny the two toothed gears are in there - considering the amount of fuel that thing can squirt when the motor is fairly spinning. I learnt heaps in the process - everything you stuff up is a learning experience IMHO. And each one you fix is a bonus.
Looking forward to hearing both JJ's screaming their lungs out...
BJ