James W. Steadman has joined Halter Marine, Inc., as vice president, special assignments, with overall responsibility f o r the Halter CATUG project at Chickasaw, Ala. Halter is building six of the giant propulsion units for an integrated tug/barge
The Chesapeake Section of The Society of Naval Architects and Marine Engineers held its fifth meeting of the 1976-77 season at the Officers Club of the Washington Navy Yard in Washington, D.C. The meeting included the presentation of two papers on unsteady propeller hydrodynamics.
Under severe Arctic operating conditions, a relatively new bearing material has outlasted traditional laminated-phenolic propeller shaft bearings by a ratio of about nine to one. The longer-lasting bearing was made from Thordon XL, an alloy of polymer and synthetic rubber,