The CHALLENGER 430 is a conventional aircraft tractor that is capable to handle push-back, repositioning and maintenance towing of aircraft up to a fully loaded Boeing B777. The mechanical lock-up clutch of the new generation of power shift transmission reduces fuel consumption when moving at higher speed. The hydro pneumatic front axle suspension provides best possible driving comfort for the operator. The liftable power-pack compartment minimizes downtime of the tractor and reduces maintenance costs.