The change with the way the 707 shuts down after altering the fuel via the menu, is new. It didn't happen with v1.2. I was in flying low and slow (5000ft and 230knots) when I change the amount of fuel. I did it the way I used to in v1.2. Shock! Horror! Engines #1 and #4 failed because the Center, Right and Left fuel tank pumps were turned back on after the changes were made. I had just emptied those tanks and so had turned them OFF prior to making the change (in readiness for what would have happened in v1.2). I could not figure out, for almost 5 minutes, why my engines just would not restart.

I haven't tried the Fuel Dumping, but there is an entry in the aircraft.cfg that deals with how fast fuel is dumped.

[fuel]
fuel_type=2
number_of_tank_selectors=4
electric_pump=0
fuel_dump_rate=0.0004 <- This one here.

From the SDK - fuel_dump_rate - Percent of fuel that can be dumped per second. That is 0.0004% per second. This means it will take 25000 seconds to dump ALL your fuel. That's 4166.67 minutes or 69.44 hours which sounds a little unrealistic, considering the 767 can't even remain airborne that long, if in flight, unless it's a military jet with refueling capabilities. You might want to try a setting of 0.04 as that will take 41 minutes to dump 100% of your fuel. How realistic that setting is, I think we'll have to wait for Lou's input on it.

Mark

Edited:

It was funny when it happened as I thought the fuel would take ages (41 minutes) to empty. I turned the dump switches on and "BAM" all the fuel gauge needles went from full to empty. By the time I figured out what was happening, my 707 was as dry as a bone. Zero, zip, nada, no fuel!

What I can't figure out, is why the FSX SDK help files says Percent of fuel that can be dumped per second. So 100/0.0004=250000. My figures of 100/0.04=2500, is 2500 seconds to empty. So why did all my fuel disappear in about 5 seconds?

Oh well. We live a learn. Something HAS to be missing from that equation though. Beats me.

Mark

I had to do some in-flight refueling, followed by getting all the engines restarted. At least I was at FL330 when it happened, I had plenty of time to get it up and running again.

Mark