Page 18: of Maritime Reporter Magazine (January 1985)

BALDER CHALLENGER

Major Suppliers

Main engines (2) . . MLW/Bombardier

Gearboxes, propellers, nozzles & shafts Hjelset

Bow & stern thrusters . . . . Maritime

Industries

Dynamic positioning system Kongsberg

Generators . Newfoundland

Tractor/BBC

Steering gear .... . . . . Tjenford

Remote controls . . . Asea

Purifiers & separators . . . . Alfa-Laval

Air compressors . . . Sperre

Water, bilge & fire pumps . . Peacock

Bros.

Compressors & fittings Ingersoll-Rand

Spindles, gears & rods Crosbie

Halon & C02 systems Pratt

Paint & coatings . . . . . International

Ventilation . Norris Warming

Watertight doors . . Allied

Windows & sidelights . Beclawat/Lan

Sewage units .... . . . . Vacusan

Tanks Easteel

Insulation . . . Guildfords

Space heating .... . Norris Warming

Balder Challenger has an overall length of about 236 feet, molded beam of 52.5 feet, depth to main deck of 23.8 feet, and design draft of 18.9 feet. Her main propulsion plant comprises two MLW (Bombardier) diesel engines, each with an output of 2,712 bhp at 1,100 rpm, providing a service speed of 14 knots.

Electrical power is provided by two 1,360-kva alternators driven by power takeoffs on the gearboxes via flexible couplings. Also installed are three diesel-driven alternator sets for ship's service duties, each rated at 490 kva, and a 12-kw emergency diesel generator set.

For diving support applications, the vessel is fitted with a fully redundant dynamic positioning sys- tem that meets the Lloyd's Register

A-A classification. Three indepen- dent reference systems are pro- vided: a vertical taut wire system, an

Artemis microwave system, and a hydro-acoustic positioning system, the latter a dual system with full transducer/transponder back-up.

All sensitive equipment is located in an independently air-conditioned computer room. To aid maneuver- ability and offer full redundancy, the vessel is fitted with two 800-hp bow thrusters and two 600-hp stern thrusters. A moonpool is installed amidships, fully serviced with com- pressed air, fuel, and electric power outlets.

During the initial design stage, emphasis was given to an optimum hull shape producing good seakeep- ing qualities in marginal weather conditions, and best utilization of space for liquid and dry bulk car- goes. For offshore supply work, the vessel has the following capacities: 800 tons of drill/ballast water, 1,000

BALDER CHALLENGER

Marystown

The first of its new M9700 diving support/supply vessel design, the

Balder Challenger, has been deliv- ered by Marystown Shipyard Lim- ited of Marystown, Newfoundland, to Labrador Offshore Shipping

Company Limited. The 2,300-dwt vessel was originally ordered by

Petro Canada Exploration Inc., then sold during the construction period to Labrador Offshore.

The vessel is constructed to the latest regulations of Lloyd's Regis- ter of Shipping, and is classed +1A

Offshore Supply Ship, Ice Class 3, + LMC, UMS, Unrestricted Ser- vice, and is in compliance with Ca- nadian Steamship Inspectorate

Regulations, SOLAS 1974, and

Damage Stability to IMO Regula- tions and Norwegian Regulations 1980. Construction cost was C$21.4 million.

CHESAPEAKE

SHIPBUILDING 215 ft.

M/V SAVANNAH "Distinguished Inland

Vessel Award" —Marine

Engineering Log, August 1984 65 stateroom cruise vessel

The nation's leader in passenger ships.

The outstanding cruise vessels of TOMORROW are being built at Chesapeake Shipbuilding TODAY.

CHESAPEAKE

SHIPBUILDING, INC

Naval Architects & Shipbuilders

Sales & Engineering Office

One Marine Park, Haddam, CT 06438 • 203/345-8576 160 ft.

M/V STAR OF DETROIT "Outstanding Shallow Draft

Vessel" —Maritime Reporter,

January 1985 450 passenger restaurant vessel

Circle 175 on Reader Service Card 20

Maritime Reporter/Engineering News