ORIGINAL: proline8000
I have been told by almost all jet pilots that you balance your jet with a full UAT. I think and know that this is a dangerous practice. The weight of the fuel/oil mixture is almost 1 oz per oz of fuel. This means that you are balancing your jet with almost ½ a pound of fuel that may not always be there. Every time I have seen a turbine run out of fuel the UAT is sucked dry. This means that when you are in the worst position during a flight ( you run out of fuel) your jet (witch is now a glider and not a very good one) you may be tail heavy. Whether you are balancing a ½ control line airplane or a 747 you never balance it with usable fuel in it…..
First, NEVER, plan or time your flight that close that you may get into the UAT and ALWAYS balance with the UAT full