Page 44: of Maritime Reporter Magazine (October 1986)

Columbian propellers are now manufac- tured in CF-3 high-strength stainless steel.

Columbian CF-3 Stainless Propellers

Provide High Performance And Long Life

According to Bob Steeber, Co- lumbian Bronze Corporation's di- rector of sales, the propellers now manufactured of CF-3 stainless steel alloy have the strength re- quired to allow "fine-tuning" for maximum performance. The CF-3 does not yield under load or flex out of pitch, and is tough enough to resist erosion from cavitation and service in sandy waters.

Selecting the right alloy for pro- pellers goes beyond metal that pro- vides high-performance design and long life in harsh environments, Mr.

Steeber said. It also requires a metal that has, in addition to high strength and toughness, a ductility that lets it bend a little under impact, minimizing damage to shafts, couplings, and transmis- sions.

Propellers made from CF-3, a readily weldable alloy, can be re- paired to "like new" condition when necessary by a competent repair ser- vice.

Virtually all of Columbian's pro- peller lines—Tetradynes, Hydro- flites, Makos, and Hydrosonics— can be manufactured from CF-3 stainless steel.

For additional information and free literature on Columbian propel- lers,

Circle 89 on Reader Service Card

The Gladding-Hearn Sally & Katherine features a Caterpillar 3408 DITA marine engine rated at 402 hp at 1,800 rpm.

Gladding-Hearn Builds Lobster Boat

For New Hampshire Firm

FISH/SHRIMP CATCHING,

FREEZING AND REFRIGERATION

TRAWLER "12961 - 050 - 016'

Fishermen can: trawl for shrimp from both sides; • catch fish with bottom-drawn, differential-depth and twin trawl-nets; • dress shrimp and fish; • store deep- frozen or refrigerated products.

COMPLETE WITH A FISH-SEARCH SYSTEM. COMPLIES WITH

INTERNATIONAL CONVENTIONS FOR PREVENTION OF SHIP

COLLISION AND PREVENTION OF POLLUTION.

The ship boasts the The fish-processing following features: facility offers:

Displacement, tons 560 • three-ton

Refrigerated hold volume, m3 .100 under-deck hopper;

Main engine, kW 588 . fjsh.washing machine;

Cruising speed, knots 10.6

Cruising capacity, days 20 9 glazing unit, conveyors;

Crew 19 • two freezers.

SPECIAL MODELS FOR TROPICAL CLIMATES. • Supplier: V/0 SUDOIMPORT, 10,

MhjIj^ Uspenski Per., 103006 Moscow, USSR. millVP 251-05-05; Telephone: 299-02-14; 299-58-77;

Telex: 411272; 411387; 411443.

Circle 124 on Reader Service Card —Color Literature Offered—

Over the last decade, Gladding-

Hearn lobster boats of the Kristen & Michael class have established a well-earned reputation among New

England fishermen. First built in the early 1970s, these 65-foot to 76- foot steel-hulled vessels are well- known for their quality, durability and overall offshore performance.

The latest boat of this class deliv- ered by Gladding-Hearn Shipbuild- ing of Somerset, Mass., is the Sally & Katherine, built for the Sea View

Lobster Corporation of Rye, N.H.

Launched this past April, the 65- foot all-steel lobster boat features a

Caterpillar 3408 DITA marine en- gine that produces 402 hp at 1,800 rpm. Operating in companion with a

Caterpillar 7211 reduction gear and

Columbian Hydrosonic propeller, her oversized engine provides an abundant power reserve even at her top speed of 11 knots.

The Sally & Katherine's deck- house is about 2 feet wider than that of earlier class boats, giving her a roomier cabin and narrower mid- decks. The deckhouse sports a T- shaped wood-grain-finish console, with a 24-inch Edson wheel and a full range of electronics. Interior ar- rangements of the deckhouse, cap- tain's stateroom, and crews' quar- ters are similar to earlier class boats, but with added touches that make the Sally & Katherine special. Qual- ity finished in oiled teak and for- mica, with decks of vinyl tile, the cabin spaces are more like those of a seagoing yacht. They are fully insu- lated against engine room noise and are comfortably heated by electric baseboard. Crew amenities include complete galley facilities, bunks for five hands and head facilities.

For lobstering duty, the Sally &

Katherine has a large, fully insu- lated lobster hold amidships aft of the engine room. A larger insulated fish hold is aft of the lobster hold.

SALLY & KATHERINE

Equipment List

Main engine Caterpillar

Reduction gear Caterpillar

Propeller Columbian

Shaft . Aquamet

Steering system . .Wagner

Generator set . . . John Deere/Lima

Controls . . Kobelt

Compass Robertson

Radars (2) . . Furuno

Fathometer . . Furuno

Autopilot Robertson

Radio navigation (2) ... . Standard

Loran-C Northstar

Wheel . . Edson

Bilge pump .... MP

Anchor . Danforth

Searchlight . . Perkc

Navigation lights Aqua Signal

Pot hauler Scandia

Minor improvements have been made in the design of the seawater system as compared to an earlier vessel. The lobster hold is equipped with a Deming self-priming circula- tion pump and an electric Conde aeration system. Handling equip- ment includes a Scandia 16-inch pot hauler, grappling winch, takeout winch, and a 1,000-pound capacity working boom to service the fish hold. An open stern with removable safety rails provides a spacious deck area for work operations, pot han- dling and stowage.

A special feature of the Sally &

Katherine is that her steel was pre- sandblasted and coated with zinc prior to assembly and welding in an effort to provide added corrosion resistance and prolong the longevity of this quality vessel.

For free detailed color literature fully describing the shipbuilding services and facilities of Gladding-

Hearn,

Circle 64 on Reader Service Card 46 Maritime Reporter/Engineering News