JULY 14, 2015 — Bisso Towboat Co., Inc., Luling, LA, has signed a contract with the Main Iron Works, LLC, shipyard in Houma, LA, to begin construction of another 4,480 HP ASD Tractor Tug.
The new tug, a carbon copy of the recently delivered Becky S.(see earlier story), will measure 100' x 38' x 18.0' and will be powered by two Caterpillar 3516C Tier 3 main engines producing 2,240 HP each at 1600 RPM.
Propulsion will be provided by two Rolls-Royce US 205 FP Z-drives featuring 90.4" diameter x 82.4" pitch four bladed stainless steel propellers set in stainless steel nozzles.
Electrical service will be provided by two 99 kW Marathon generators powered by John Deere Model4045AFM85 Tier 3 engines.
The tug will be equipped with a JonRie Intertech Series 230 Hydraulic Bow Winch equipped with 500' of 8" circumference synthetic hawser. Bollard Pull is estimated to be 60 tons.
Tankage includes capacities for 30,163 gallons of diesel fuel, 1,826 gallons each of lube and hydraulic oil and 10,938 gallons of potable water.
Construction is expected to begin immediately with delivery in the fall of 2016.
This will be the sixth new ASD tractor tug constructed by Main Iron Works for Bisso, which operates the largest fleet of ASD Tractor Tugs on the Mississippi River, and the tenth new tug constructed in the past 25 years for Bisso by Main Iron Works. The new tug will bring the total number of tugs in the Bisso fleet to thirteen.
Founded in 1890, Bisso is the oldest continuously operating tugboat company on the Mississippi River.