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

Automobile and Passenger Ferry Bainbridge Powered with One Eight Cylinder 800 B.H.P. Diesel Engine New Diesel Ferry Enters Service Between Seattle and Port Blakely YPICAL of the changes in in- | land water transportation on Puget sound, due to the univer- sal use of the automobile, the diesel ferry BAINBRIDGE has just entered service between Seattle and _ Port Blakely, Bainbridge island. Not many years ago practically all traffic on Puget sound was handled by passenger and freight steamers. These are grad- ually being displaced by diesel driven passenger ferries of which the BAIN- BRIDGE is the largest and most modern. This vessel is now one of six auto- mobile ferries radiating from Seattle, five of which in 1927 carried 102,274 automobiles, an increase of 25 per cent over 1926. The BAINBRIDGE has a capacity for 1000 passengers and 90 cars. Launched May 19, the new ferry underwent successful trials on June 21 and on the same day entered regu- lar service over a run slightly more than 14 nautical miles for the round trip. The vessel operates with two shifts from 6 a. m. until midnight. Since going into commission the ferry has averaged 11 knots, although the machinery is not yet shaken down. 32 By Robert C. Hill She handles with exceptional ease and the quick pickup and quick stop are especially pleasing to the owners. The BAINBRIDGE is a double ended type constructed entirely of Douglas fir and is of the following dimensions: Length, 187 feet 8 inches overall; molded beam, 57 feet 8 inches; molded depth, 16 feet. She was built at the Lake Washington shipyards, Hough- ton, Wash. Novel Features of Design The new vessel was designed by Capt. John L. Anderson, president of the owning company, the Kitsap County Transportation Co. Captain Anderson has been engaged in inland water transportation in and near Seat- tle for 30 years and the BAINBRIDGE represents the results of his extended experience in the requirements of the service. ‘Che timbers of Douglas fir were cut in the winter and especially seasoned for this job. The hull con- struction is extra heavy. The design is known as a modified V-bottom type, which Captain Anderson says, gives increased strength, stability and speed MARINE REVIEW—August, 1928 efficiency at 15 per cent less con- struction cost. For power the BAINBRIDGE has a double-ended, double-clutch type Washington-Estep marine diesel en- gine of 800 brake horsepower, the engine having eight cylinders in line, each being 17-inch bore and 24-inch stroke, and the engine turns at 190- 200 revolutions per minute. This type of drive with a clutch at each end of the engine has been thoroughly tried out by the Kitsap County Transporta- tion Co. in its ferryboat KuiTsap, which is powered with a 600-brake- horsepower engine of the same make, and which has given perfect service for the three years she has been in operation. The double-clutch type of drive gives by far the most efficient results in double-ended ferryboat service, due to the fact that only five to six per cent is lost in efficiency from the idle forward propeller, while it has been demonstrated that from 17 to 20 per cent of the power is lost in the solid hook-up with positive drive to pro- pellers on both sides. This great loss comes from the force of the water