The British Aerospace BAE 146 Fixed Wing tow bar has the capacity to handle aircraft up to a gross weight of 125,000 lbs. They are available in 10 ft. and 15 ft. lengths. The inside diameter of the tube that receive the heads is 3 1/4″ a reducer insert P.N. TY-RED1 is available to receive heads with 3″ dia. This bar is compatible with TronAir, Aero Specialties and other universal tow bars.