Originally Posted by
Fareastdriver
As long as they remember to put at least 150 lbs. of fuel in the sponson tanks as less than that will not feed. Above 150 lbs. they will carry on until empty.
Guessing that >150lbs fills appropriate fuel lines and ongoing siphon effect then allows the remainder to be sucked out but <150lbs doesn't get those lines filled and the fuel remains as ballast? Would be interested to know what the actual mechanism is.