The AST-1 X 490 and AST-1 X 680 represent the innovative upgrade of the proven AST-1 F / L aircraft tractor by extending the aircraft range up to the B747-8 and A380.
Aircraft weight up to: 1,320,000 lbs
Engine output: 490 PS or 680 PS
Max. NLG load: 108,000 lbf