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

July, 1912 Power Boat for Government Engineer The Nemadji, built by the Racine Boat Co., of Racine, Wi, for ,.the United States engineer office, Duluth, Minn., which was recently delivered after a satisfactory run of 700 miles, is a_ strictly up-to-date power tug, of the following dimensions: Length over all, 60 ft 9 in.; lemeth water line, 55. ft, 10 in.; extremie beami, 12 ft.; draught, 4 ft. The power plant consists of one 100-H. P., 6-cylinder, 4-cycle Standard marine engine. The THE MARINE REVIEW balance thick. of the planking is 134 1m, The planking, except garboard and sheer strake, are of long leaf Geor- gia pine. Two water-tight bulk- heads forward and aft also help to strengthen the hull. In extreme fore peak is located chain locker, etc., aft of which is the crew's toilet, ward- robe, ete, Aft of this 15 the crews quarters, with sleeping accommoda- tions for four persons. The engine room is aft of the crew's quarters, and here also is installed and con- _ Tuc NEMADJI FOR THE GOVERNMENT ENGINEER AT DuLuTH, EQuippep WITH STANDARD Marine ENGINE Buitt By RACINE Boat Co., RAcINE, WISs. tug is of heavy construction, the keel being made of clear well-seas- oned white oak, sided 6 in. and tap- ered to 4 in. at after end, and mold- ed to an average depth of 8% in., 11 in. at the after end and 7 in.. where scarphed to stem knee. The center keelson is of long leaf yellow pine, sided 6 in. and molded to a depth of 4 in., and in one length. The side keelsons are of yellow pine, sided' 3° in. and «molded 2% ~~ in: Clamps of yellow pine, 2 in., molded to a depth of 6 in., and tapered for- ward and aft to 2 in. by 4% in. The frames are of white oak, sided 2 in. and molded 2 in. at the hood and 3 ini at. the heel: spaced 12, in. ceti- ter. The bilge stringers are of yel- low pine, sided 3 in. and molded 214 in., and tapered to 3 in. by 2 in. The side stringers of yellow pine, 3 in. by 2%4 in. tapered to 3 by 2 in. The stem is of white oak, sided 6 in. and molded to a depth of 18 in. The stern post is of oak, sided 8 in. The garboards are of white oak, 3 in. thick. The next two planks and the garboard are 1% in. thick. The -and two Pullman berths: nected to the engine a dynamo of 15-volt, .-15.. ampere capacity, with storage battery 13 volts 120-ampere, and switchboard for lighting pur- poses. Suitable fixtures and _ lights are distributed throughout the boat. Aft of the engine room is the gal- ley, which is fitted with totlet, ice box, sink, cooking stove, etc. A hot water heating system is also in- stalled in the galley, with radiators in the pilot house, crew's quarters and officers' saloon. The officers' saloon is just aft of the galley, and is fitted with desk, large folding ship table, The pilot house is above the crew's quarters forward and is: fitted with binnacle, compass, wheel, barometer, chart case, etc. Large locker seats are also provided. The finish in the pilot house and officers' saloon is antique, the engine room and crew's quarters marine white. All floors are covered with a heavy inlaid linoleum, and all seats and chairs are upholstered in leather. , All equipment, such as an- chors, chains, windlass, sailing lights, flags, etc., is included. "cargo, 231 Oil Engined Vessel Eveston The ojil-engined vessel Eveston, equipped with engines of the Carels- Westgarth type, manufactured by Richardson, Westgarth & Co., Mid- dlesbrough, was launched from the yard of Sir Raylton Dixon @& Ca Middlesbrough, last month. This ves- sel is of the cargo-carrying type to carry 3,100 tons deadweight and at 4,400 tons displacement is to steam at 10 knots. stroke Diesel system are of the open The engines of the two- resembling closely marine There four, cylinders, 20 in. in diameter by 36 in. stroke, arranged to run at 115 revolutions per minute. The scaveng- ing air pumps and the' water pump for cooling the cylinders and pistons are placed at. the back of the en- gines and are driven by levers from the piston rod crossheads just as the pumps.of a steam. engine are ar- ranged. The high pressure air com- pressor is placed at the fore end and is driven by a pin on the end of the. crank-shaft. All the auxiliaries nor- mally required for operating the en- gines are driven by the engines them- selves so that it will not be necessary to run any other machine when at sea. The Eveston will compete with steam-driven vessels on a thirty days' voyage and will have many advan- tages over the steam-propelled boats, owing to the saving in weight de- spite the higher cost of oil fuel. It is claimed that there is a saving in weight of machinery of 68 tons as compared with a steam plant, while for a thirty days voyage 450 tons of coal has to be carried as against 120 tons of oil fuel, meaning 330.tons ad- ditional cargo carrying capacity. crosshead design, steam practice. are Dock Trial of Diesel Engine The marine Diesel engine which the New London Ship & Engine _ Co., Groton, Conn. built for one of the Standard Oil Co.'s barges, was given a dock trial at Port Richmond, New York harbor, recently, to the satis- faction of both builder and owner. The design of this barge follows the usual practice of the Standard Oil barges with the exception of the power plant. The hull is subdivided by nine oil-tight bulkheads into ten compartments. Eight of these com- partments have tanks for carrying, while the forward compart- ment contains cargo pump, chain locker and other equipment. The after compartment contains the heavy oil engine and fuel oil tanks,