PPL Flight Performance And Planning Practice Questions - CAASL Private Pilot License (PPL) Flight Performance And Planning Examination Exam

It is the maximum mass allowable to ensure there is enough wing bending relief provided by fuel in the wing tanks. It is the maximum mass of the aircraft without any fuel in the tanks, limiting stress on the landing gear during hard landings. It is the maximum mass above which all additional weight must be loaded as fuel in the wings to avoid overstressing the wing roots. It is the structural limit for taxiing when the fuel tanks are empty.