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16 Eng ing Name of Engine—Superior diesel; Year Builder—Superior Engine Co. Cycle—4; No. of Cylinders—6; B.H.P.—260 Action—Single; Injection—Mechanical (solid) Piston Coolg.—Air; Bore—9 in.; Stroke—12 in. R.P.M.— 600; Piston Speed—1200 ft. per minute Pressure Brake—74.9 pounds per sq. in. (mean) B.H.P. per Cyl.—43.33; Stroke to Bore—13.3 Length O. A.—16 ft. 2 inches Height O. A.—75 inches; Width O. A.—36% in. Weight—14,100 lbs.; Lbs. per B.H.P.—54.25 lbs. Lbs. per B.H.P., all machinery—65.33 pounds Reversing—Direct reversing Air Compressor—Built in, for maneuvering Vessel Name—Carric S. Roperick; Type—Fisherman Owner—United Fisheries Corp., Gloucester Builder—Story Shipyards, Essex, Mass. Completed—Engine installation, May 1, 1932 Main Drive—Single screw, diesel geared drive Length B. P.—81 ft. 5 in.; Beam—19 ft. 7 in. Depth—9 feet 3 inches; Draft—10 feet Displ.—74 gross tons; Deadweight—50 net tons Speed—In knots, 9; No. of Propellers—One Fuel Capacity—tIn bunkers, 600 barrels Fuel Consumption—Lb. per b.h.p per h.—0.45 Radius Without Refueling—About 2500 miles Generator—One 2% k.w. Diehl Mfg. Co., belt- driven from aft end of main engine 1932 Remarks The Carrim S. Roperick is a Gloucester fishing schooner of solid wood construction, built at Story Shipyards, Essex, Mass., about ten years ago. She was originally powered with one 150 horsepowe: diesel engine. When the new engine described here was installed, early this year, an increased speed of 3 miles per hour was obtained. Since it was possible to use the same engine bed the change of installation was not expensive. This vessel is of a heavy bulky type requiring Diesel Geared Drive in Carrie S. One Engine —260 B.H.P. Roderick DESCRIPTION The Carrie S. RODE- Rick is a Gloucester fishing schooner. Pro- pelling power is sup- plied by one four-cycle, six-cylinder 260 brake horsepower diesel en- gine shown here. The engine is connected with the _ propeller through a two to one reduction gear giving to the propeller 300 revolutions per minute. considerable power for propulsion. She engages in sword fishing and also in dragging, and carries a crew of ten men. The engine used in the Roprrick, of four-cycle, cold-starting, mechanical injection type, is of rug- ged construction and is designed for heavy duty and continuous service. Horsepower ratings are based on 75 pounds mean effective pressure which gives a considerable emergency overload capacity. Quick acceleration is possible with governor con- trol at all speeds. The engine will operate on .4 to .45 pound per brake horsepower per hour at the rated load, depending upon operating conditions. The entire engine including the flywheel is en- closed, dust-proof and oil-tight. Practically every part is readily accessible. Average compression pressure is 400 pounds per square inch while the firing pressure does not exceed 600 pounds at rated loads and speeds. The lubricating system is of force feed type. MARINE REVIEwW—November, 1932