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42 PERE MARQUETTE 19—Carferry—Great Lakes—Twin Screw—Steam Name—PERE MARQUETTE 12 Owner—Pere Marquette Railway Co. Builder—Manitowoc Shipbuilding Corp. Naval Architect—Manitowoc S. B. Corp. Launched—Sept. 26, ’27; completed, Oct. 29, 27 Classification—None, equal to American Bu- reau HULL PARTICULARS Length over all, 400 feet; length between per- pendiculars, 372 feet; breadth molded, 53 feet; depth molded, 22 feet; draft, maximum, mean, 16 feet; displacement loaded, 5950 tons; gross tonnage, 2767; net tonnage, 1123; capacity in railroad cars, 27 of an average length of 40 feet; bunker coal capacity in tons; 180 short tons; speed, 13 statute miles per hour. MACHINERY PARTICULARS Main Engines—Two, 3-cylinder vertical com- pound steam engines built by the Manitowoc Shipbuilding Corp. Size, cylinders, 26% x 40 x 40 inches and 36-inch stroke. Boilers—Four, scotch marine type, built by Manitowoc Shipbuilding Corp. Size, 14 feet 6 inches in diameter and 12 feet long; working pressure, 185 pounds per square inch; fuel, coal, hand fired. AUXILIARY EQUIPMENT Manufacturers of: Pumps—Dean Brothers Steering Engine—Manitowoc S. B. Corp. Electric Generators—Two, 10-kilowatt sets by Engberg’s Electrical & Mechanical Works DESCRIPTION This vessel is of the Great Lakes river type of carferry built by the Manitowoc Ship- building Corp. for the Pere Marquette Rail- way Co. There are two propellers at the bow and two at the stern. Each of the two compound expan- sion steam engines is connected to one bow and one stern pro- peller. Thrust Bearings—Kingsbury Machine Works Soot Blowers—Diamond Power Specialty Anchors—Baldt Anchor Chain & Forge Corp. OTHER MATERIALS USED Steel—Lukens Steel Co. Plywood and Plymetal—Haskelite Oakum—George Stratford Oakum Co. The PERE MARQUETTE 12 built by the Man- itowoe Shipbuilding Corp. For the Pere Mar- quette Railway Co. and completed last fall is in service between Port Huron, Mich. and Sarnia, Ont. carrying a maximum of 27 rail- road cars on each trip. The tracks are ar- ranged in three parallel rows and will accom- modate the largest type of freight car. Cars can be loaded or unloaded from either end. Though the vessel is a single ended ferry in the sense that it is bow and stern shape and the navigating bridge is located at the forward end, two propellers are fitted at each end, each of the two engines being coupled to a bow and stern propeller. Experience in ferrying railroad cars across different waters of the Great Lakes has nat- urally definitely effected the type used. The open single deck carferry such as described here is suitable for the comparatively short river run. It would be entirely inadequate for long distance service across the lakes. The carferry WABASH also featured as a distinctive vessel in this issue represents the other type, the type that is suitable for the severest weather and for operation in winter. i ar AS, PERE MARGLET IE 1S MARINE REVIEW—April, 1928