Maritime History of the Great Lakes

Marine Review (Cleveland, OH), July 1910, p. 274

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274 TAE Marine REVIEW The Navy Standard Motor Dory By F. G. Copurn. ae navy department has for some years been seeking a satisfactory type of motor boat, with which to equip the torpedo boat destroyers and larger torpedo boats of the navy. The necessity for these boats arises largely out of the long range torpedo practice beam on water line, 4 ft. 4 in.; beam, maximum, 5 ft. 7 in.; molded depth, 2 ft. 1% in.; draught, maximum, 18 in.; weight, exclusive of passengers, 1,685 Ibs.; capacity, 10 persons. The foundations are of yellow bark oak; timbers, plank-sheers, clamps, etc., 'Unitep States Navy now followed; it takes too much time to recover a torpedo after a 3,000 or 4,000-yard run, and then, too, there is sometimes the danger of losing the projectile unless picked up at once. As a torpedo costs $5,000, and has to be run a good many times before its in- dividual idiosyncrasies are known and it becomes of military value, the loss of one would pay for a small fleet of motor boats. As the torpedo flotillas require plenty of room for torpedo practice . and maneuvering, their haunts are large bays and open roadsteads, where there is usually considerable sea, so that the boats must be very seaworthy. This requirement, combined with the hard usage the motor boats get, effectually rules out the ordinary type of motor boat affected for pleasure seeking. These boats, with their flat sterns and frail construction, were neither sufficiently seaworthy nor robust to fill the bill, and after several years' trial, have been abandoned. The latest type, illustrated by the ac- companying drawings and photographs, bids fair to solve the problem. The boat is of light weight, but of rugged construction. It is a regular dory type, cranky and wet, but will live in any sea, and except for the wetness, which may perhaps be relieved by slightly flaring the bows, is giving good satis- faction. Its general dimensions are as follows: Length of water line, 17 ft, 4 in.; length over all, 20 ft. 10 in: ned. STANDARD Motor Dory. of white oak; planking of cedar; and interior finishings and deck of pine. The boats were at first equipped with 4H. P., single-cylinder, two-cycle en- gines, 800 R. P. M., with reverse gear; the propeller being three-bladed and of 14-in. diameter and 18-in. pitch. With this equipment the boat made five sea miles per hour, over a measured course, 'with a gasoline consumption of one- fifth gallon.per mile. The boat has a gasoline tank of 35 gals. capacity. The inst: lot of six; built at: Mare: Island, is being equipped with 4-H. P., single- cylinder, four-cycle motors, 600 R. P. M., with reverse gear, with the same pro- peller; and as all these engines devel- oped over 5 H. P. on test, a little more speed and ability are looked for. No data are at present available on their performance in service. As these last motors have the make and break igni- tion, it is probable they will prove more serviceable, as past experience in these motor boats has pretty well established the superiority of this type. SUEZ CANAL REPORT. The report of the Suez Canal Co. for 1909, which was submitted to the an- nual meeting of shareholders on June 6, states that the year's working results were highly satisfactory, owing to the general improvement in trade, more es- pecially in the agricultural industry of India. For the first time since the opening of the waterway the receipts from shipping were over $24,000,000, the July, 1910 total amounting to $24,695,576, an in- crease of $2,397,374 over 1908. The ex- penses were $8,673,856, a reduction of $308,720, the surplus of receipts over expenditure being $16,020,170. After setting aside a sufficient sum for the statutory reserve, there remained a net balance of $15,577,318. Payment of a dividend at the rate of $30 per share, an increase of $1.80 on the rate for 1908, absorbed $15,100,000, leaving a bal- ance of $8,100 to be carried forward, As a result of this increased prosperity, the transit dues are to be reduced 10 cents per ton from Jan. 1, 1911, when the impost will be $1.50 per ton, and it is hoped to lighten the burden on ship owners still further. During the year, 4,239 vessels of. 15,407,527 tons net passed through the Canal, the increase over 1908 being 444 ships and 1,774,244 tons. Owing to an improvement in transit facilities, the average passage was reduced to 17 hours 13 minutes, and it is hoped that, as a result of the works now in progress, the time will be accelerated. In consequence of the re- jection by the general assembly of the Board's proposals for a renewal of the Canal concession and of the continued opposition of the Egyptian Nationalists, all negotiations on the subject have been abandoned. NEW HAMBURG-AMERICAN LINER. Some particulars are now made known of the mammoth liner for the Hamburg- Amerika Co., which is now being built for the company by the Vulcan yard at Stettin. The vessel will have a length of 6/93 ft. a breadth of 95.2 ft. and a depth from the upper deck of 64 ft. She will register over 45,000 tons and will be propelled exclusively by turbines, giving her a maximum speed of 22 knots. The vessel will be larger than any vessel now built or _ building, and her size may be estimated by a comparison with the dimensions of the Cunard liner Mauretania, which are: Length, 761 ft. 2 in.; beam, 88 ft. 7 in,; depth from upper deck, 56 ft. 6 in-, and tonnage, 32,500. BRITISH CRUISER TRIALS. The British protected cruiser Liver- pool, built by Messrs. Vickers Sons & Maxim, of Barrow, who have also in- stalled the engines, has completed her official trials with remarkable success. She attained a speed of 26.17 knots with an average of 24,700 shaft horsepower, as against the guaranteed speed of 25 knots and 22,000 shaft horsepower. She has been built and completed in 16 months from the laying of the keel. The Liverpool is 300 ft. long, 37 ft. broad, with 15 ft. 3 in. draught, and a displacement of 4,800 tons.

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