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40 Diesel Direct Drive in Ferry Crosline One Single Acting Engine—600 BH. P. Name of Engine—Sumner-Williamette Builder—Williamette Iron & Steel Works, Port- land, Oreg. Cycle—Two; No. of Cylinders—6; I. H. P.—750 B. H. P.—600; Action—Single acting, marine type Injection—Solid; Scavenging—Port and attached pumps Piston Cooling—By means of air; R. P. M.—175 Bore—16% in.; Stroke—22 in.; Press. Ind.—56% Pressure Brake—45; B. H. P. per Cylinder—100 I. H. P. per Cyl.—125; Mechanical Eff.—80% Stroke to Bore—1.33; Wkg. Strokes per Rev.—6 Length—26 ft. 3 in.; Height—11 ft. 5 in. (To cen- ter of crank; 2 ft. 1% in. below) Width Over All—8 feet 0 inches Weight—One engine, 90,000 lbs.; Lbs. per b. h. p. 150. DESCRIPTION One engine of this size and type direct connected to the pro- peller shaft is installed in the automobile ferry CROSLINE. This engine is of the two-cycle sol- id injection direct re- versible crosshead type of marine diesel en- gine. A_ feature of this engine is its open construction similar in this respect to the steam engine. A sim- ple sturdy engine de- signed for hard serv- ice, it is also readily maneuvered. Reversing—Direct; Air Comp.—Attached Vessel Name—Crosline; Type—Wooden ferry Length. B. P. P.—143.7 ft.; Beam—48 ft. Depth—13.9 ft.; Draft—11 ft.; Speed—10% knots No. of Propellers—One (Single ended ferry) Fuel Consumption—At 175 r. p. m., 22 gallons per hr. One gal, lubricating oil per 10 hours Propeller—Three. blade, 96 inches diameter, 92 inches pitch, elliptical shape 32 inches wide This ferry runs from Alki Point to Man- chester, at Seattle, a distance of 5.6 nautical miles. She backs into Manchester dock and heads into Alki. The round trip takes two hours, the actual run from port to port taking 32 minutes. The engine is started 200 times per day. This ferry has a capacity of 60 automobiles and makes 10 trips a day. Diesel Ferry CrosLine—single screw automobile ferry used on Puget Sound MARINE REVIEW—November, 1927