The following text may have been generated by Optical Character Recognition, with varying degrees of accuracy. Reader beware!

18 Diesel Direct Drive in Towboat Belle One Engine—100 B.H.P. Engine Name of Engine—Union Diesel; Year—1932 Builder—Union Diesel Engine Co. Cycle—4; No. of Cylinders—6; B.H.P.—400 Acting—Single; Injection—Solid (Mechanical) Bore—13% in.; Stroke—20% in.; R.P.M.—225 Piston Speed—770 feet per minute Pressure Brake—79.8 lbs.; B.H.P. per Cyl.—66.6 Stroke to Bore—1.57; Wkg. Str. per Rev.— 3 Length O.A.—21 ft. 9 in.; Width O.A.—5 ft. 2 in. Height O.A.—10 ft. 5 in.; Weight—76,000 lbs. Weight—Pounds per brake horsepower—190 Reversing—Direct, by sliding camshaft Air Compressor—Single stage, for maneuvering Vessel Name—BELLE; Type—Log raft towboat Owner—Preston Mann Towing Co., Vancouver Completed—Converted to deisel, June ’32 Type of Drive—Single screw, direct connected Length B.P.—84 ft. 6 in.; Beam—18 ft. 7 in.; Draft—8 ft. DESCRIPTION Propelling power in the log towing tug Belle is the diesel en- gine, described and il- lustrated on this page, direct connected to the propeller. The en- gine is of four-cycle, single acting, direct re- versing, patented me- chanical injection com- mon rail fuel system, and overhead cam- shaft. The cylinders are individual and are fitted with nichrome iron liners. Speed—Towing, 2 to 3 miles per hour No. of Propellers—One Fuel Capacity—In bunkers, 800 imperial gals. Fuel Consumption—Lb. per B.H.P. per hr.—0.42; pounds per day—4000 Radius Without Refueling—18 days operation Generators—Two, 3 k.w., 25 k.w. diesel drive Rem arks This vessel was previously equipped with steam power and it was decided to change to diesel en- gine power to reduce operating cost and to great- ly increase radius of operation on a single fuel- ing. The Bettie is used especially for long towing in the waters of British Colombia. During conversion from steam to diesel drive, the tug was further modernized by the installa- tion of an electric-driven anchor windlass and an electric drive towing winch. The economy and simplicity of operation of the diesel engine in this kind of service and for this power gives this type of drive an exceptional ad- vantage over a steam plant. MARINE REVIEW—November, 1932