Dravo SteelShip Delivers Coastal Tugboats 'Sioux' And 'Maya'

Dravo SteelShip Corporation, Pine Bluff, Ark., recently delivered two 75-foot by 28-foot by 12.5- foot steel coastal tugboats to Apex Oil Company of St. Louis, Mo.

The tugboats, the Sioux, and the Mava (shown above), are powered by twin Detroit Diesel 16V-149TA engines rated at 2,200 hp. The engines are equipped with Reintjes Model WAV800, 6:1 ratio reduction gears. Fernstrum D-1672 keel coolers provide for main engine cooling.

Twin Detroit Diesel 4-71 engines with 75-kw generators supply ship's power. One Carlisle and Finch 15-inch, 1,000-watt incandescent searchlight and one 19- inch carbon arc searchlight have been provided. Kahlenberg air horns are pilothouse mounted. Electronics include a SBA Model 312B single sideband radio, a Necode 321AR Digital Encoder/ Decoder, two Motorola Triton 55/ 75 VHF and two Epsco Model 310/6 radar and were supplied by ITT Mackay Marine.

Main engines and generator sets were supplied by Western Diesel of St. Louis. A telephone booth supplied by Acoustical Development is located in the engine room.

The Wagner steering system was supplied by H.H. Hough Company, and the engine controls are Wabco.

Each vessel is equipped with two Kahlenberg four-blade, stainless- steel, 80-inch propellers.

Tank capacities onboard each vessel are: fuel, 20,000 gallons; potable water, 5,000 gallons; clean lube oil, 500 gallons; and dirty lube oil, 500 gallons.

Each tugboat is designed with four staterooms to accommodate a crew of eight. Each stateroom is furnished with built-in double wooden bunks, double hanging lockers, and desk and chair. Dravo SteelShip Corporation is currently building seven 85-foot towboats, two 65-foot towboats, and several other pieces of marine equipment.

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