The types of tugs constructed by LEEVAC over the years include those specifically designed for ship docking and ship escorting, as well as for towing oceangoing barges. Our company has also designed and constructed push-boats for pushing barges up and down inland waterways. In addition, LEEVAC has the capabilities to design and build ASD tugs (Azmuthing Stern Drive, also known as Z-drive) as well as tractor tugs, which are quickly replacing conventional shaft-driven tugs in the offshore tug market.