The US Tower TX series crank-ups are self supporting steel towers, large enough to accommodate most amateur rotators. The tower is constructed using 21 foot sections, with a four foot overlap designed to improve strength and prevent section binding while raising and lowering the tower. Cross bracing is used at high stress areas to further increase the strength of the tower. All are hot dipped galvanized to resist rust and corrosion, assuring years of enjoyment and trouble free service. All TX series towers are supplied with a hinged T-base, base bolts, installation template, rotor plate, and top plate. All non-motorized models are supplied with a load actuated hand winch. The TX-472MDP is supplied with an MDP-750 motor drive, and the TX-489MDPL is supplied with MDPL-1000 motor drive.