. . . . . . . . . . . . . . . . "Gross Lift-Off Weight"@en . . . . . . . . . . . . . . . . . . . . . "The sum of a rocket's inert mass and usable fluids and gases at sea level." . . . . . . . . . . "http://en.wikipedia.org/wiki/Maximum_Takeoff_Weight"^^ . . . . . .