The Petromar Bravo (shown above), third in a series of six 192-foot tug/supply boats being built by Halter Marine, Inc., New Orleans, La., for the Petromar Corporation of Rockport, Texas, was christened recently in Corpus Christi.

The vessel was christened by Jan Cady, wife of George Cady of Texaco Inc., who has chartered the Petromar Bravo for work out of Warri, Nigeria. The new boat will join her Halter-built sister ships Petromar Atlas and Petromar Chief, which are already working for Texaco in Nigerian waters. They will be followed there soon by the Petromar Dorado, which is nearing completion at Halter's Chickasaw, Ala., division.

The Petromar Bravo is 192 feet 6 inches long with a 40-foot beam, and 15-foot draft. She is powered by two EMD 12-645E6a diesel engines developing 1,500 bhp each at 900 rpm through Lufkin 3:1 reverse/reduction gears. Maneuverability is enhanced by a Schottel bowthruster driven by a GM8V71 diesel engine.

She can carry 5,000 cubic feet of dry bulk mud in her four Smatco tanks and 1,500 barrels of liquid mud in four additional tanks. Her spacious 4,100-square-foot aft deck can carry up to 700 tons of cargo.

The new tug/supply vessel can also carry 50,184 gallons of fuel oil, 1,000 gallons of lube oil, 10,000 gallons of potable water, and 211,000 gallons of ballast.

Auxiliary machinery includes two Delco 125-kw generators driven by two GM8V71 diesel engines, two Quincy D325 air compressors, and Carrier air-conditioning and heating for crew comfort. Four Aurora 344 pumps move bilge, ballast, and fuel oil and fire-fighting liquids, while one Viking HL195D pumps oily water bilge and another serves as a fuel oil standby pump.

Some of the deck equipment aboard includes: one Smatco 1500 EAD-30 double wildcat; a 5-foot by 8-foot stern roller, a Smatco 66-DAW-200 towing winch; 16 shots of 1.5-inch high-strength stud link chain; and two 2,000-pound Danforth anchors.

In addition to the vessel's onboard fire-fighting system, she is also equipped to fight ship fires with a 500-gpm monitor located on top of the pilothouse. The monitor is served by an Aurora 421 pump and driven by power from a GM6-71 diesel engine.

The Petromar Bravo is loadline certificated and classed A-1, Maltese Cross, full ocean towing by the American Bureau of Shipping. She is USCG classed subchapter I, USCG NVC 1-78, and Coast Guard admeasured under 300 gt.

The new Petromar vessel was built at Halter Marine's Chickasaw, Ala., division, one of a group of shipyards owned and operated by Halter Marine.

'PETROMAR BRAVO' Main Particulars

Propulsion Main Engines: 2—EMD 12-645E6A diesels, 1,500 hp @ 900 rpm. Engine Controls: Mathers w/control stations in forward and aft pilothouse and 1 in engine room. Reverse/reduction gear: Lufkin ratio: 3:1. Propellers: 2 stainless steel, four-bladed. Bow thruster: 1 Schottel driven by GM8V71N diesel. Steering system: Electro-Hydraulic by Steering Systems, Inc.

Capacities Fuel oil: 50,184 gallons Lube oil: 1,000 gallons Potable water: 10,000 gallons Ballast water: 211,000 gallons Pressure set: 1 Myers and 1 Elver E8 ultra violet water purifier Bulk mud tanks: 4 Smatco @ 1,250 cubic feet Liquid mud tanks: 4 — 1,500 bbls.

Auxiliary machinery Generators: 2 — Delco 125-kw (1,200 rpm) Generators driven by 2 — GM8V71 Heating: Electric Strip heaters 25 kw Air-conditioning: Carrier 15 tons Air Compressors: 2 Quincy D325 2-cylinder 2-stage 5 hp Sanitary system: 1 Crown sewage tank pump 5 hp Ballast pump: 1 Aurora 344 Bilge and fire pumps: 2 Aurora 344 Fuel oil transfer pump: 1 Aurora 344 Fuel oil standby pump: Viking HL 195D rotary pump Oily water bilge pump: Viking HL 195D

Communications and Navigation Equipment Satellite Navigator: N.C.S. Wherefinder II Gyro: Sperry — MK 37D Radar: 2 Decca 916 C Radio: 1 SSB Harris RF230M VHF/RM: 2 Texas Instruments Automatic pilot: 1 8T Sperry Depth Sounder: 1 Furuno 85F/Datamarine Loudhailer: 1 Raytheon

Deck Equipment Anchor Windlass: 1 Smatco 1500 EAD-30 double wildcat Anchor chain: 1½" — 16 Shots high strength stud links Anchors: 2 — 200 lb. Danforth Stern roller: 5 feet x 8 feet Towing winch: 1 Smatco 66-DAW-200