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Aviation History
1913
1913 - 0151.PDF
FEBRUARY S, 1913. (/OGHT Three views of the 100-h.p. Benz motor which won the Kaiserprels of £2,bOO.—Allgemeinc Automobil-Zeitung. Dansette-Gillet system. Since Bleriot made his historic cross- channel flight with an Anzani motor, engines of this make have had an extensive sale. At first they were chiefly employed for school work, as the motors Anzani made in those days were of relatively low horse-power. For over two years now, however, the Anzani works have been turning out, as well, air-cooled motors of much higher power, which have proved themselves eminently reliable for cross country work. Perhaps their most popular model is the 35-h.p. Y-type, which will be on exhibition at Olympia. In addition, the General Aviation Contractors intend to exhibit the 40-45-h.p. six- cylinder, the 50-60-h.p. six-cylinder, the 80-h.p. ten-cylinder, and the 100-iio-h.p. ten-cylinder models of Anzani motors. Of the water-cooled Laviator motors, they will probably be showing the 80-h.p., the 120-h.p., and the 200-h.p. models, all eight-cylinder "V" type motors. The Green Engine Co., Ltd. Here, on Stand 31, various types ot the celebrated Green engine will be shown. They will have the 100-h.p. 6-cyl. Green engine, the identical engine which drove the Cody biplane to victory in the cross-country Michelin competition of 1912. Two other motors of the same type, but quite new from the works, will be exhibited. Both these motors have already been sold. One has been con structed to the order of the British Admiralty, and the other will go to a private customer, who intends to install it in a hydro-aeroplane. Of the 65-h.p. 4-cyl. model, two will be shown. One of these will be the actual engine that took Cody through the Daily Mail Circuit of Britain, a distance of 1,010 miles, and that helped him win both the Michelin competitions, for Cross-country and Duration in 1911. Altogether that engine has flown upwards of 7,000 miles. The other 65-h.p. motor that will be shown will be the one that won the Patrick Alexander competition by a non-stop run of 26 hrs. 7 mins. It is interesting to record that during this run the motor, rated at 65-h.p., developed 62'5-h.p. for 26 hours continuously, and was then speeded up, giving 68-h.p. for the last seven minutes of the run. During the whole performance it made two million revolutions without a single misfire. A 4-cylinder 35-h.p. motor will also be on view, which will be the engine that was the only one to complete the Patrick Alexander test in the year 1910. It ran, untouched, for 24 hours, except for a stop of eight minutes, during the first hour of running, when a faulty plug had to be replaced. In addition to these exhibits various spare parts of different models of Green engines will be shown. The Hart Engine Co. We have received from the Hart Engine Co., in confidence, particulars of the 120-h.p. aviation motor that they will be exhibiting at Olympia. These details, however, we are not yet able to publish owing to the fact that the patents covering the special design of the motor are not yet completed. Milnes, Daimler, Mercedes, Ltd. On their stand at Olympia will be exhibited three aeroplane motors, one a 70-h.p., one a 90-h.p. and the other a 100-h.p. The particulars of the 70-h.p. motor are, four cylinders, 120 mm. by 140 mm. bore and stroke, giving 70-h.p. at 1,400revs., petrol consumption "075 gallons per h.p. hour. Weight of motor including magneto, water pump, oil pump, all piping and connections, but without radiator or auxiliary oil tank, 348 lbs. The price of the motor is ^385. Their 90-h-p. aeroplane motor will be a similar four-cylindered engine, the cylinder dimensions of which are 140 mm. bore by 150 mm. stroke. Including all necessary fittings, but without radiator, the motor weighs 400 lbs. ^."510 is the listed price of this model. For the 100-h.p. motor that Messrs. Milnes, Daimler, Mercedes, Ltd., will be showing, its main characteristics are, six cylinders, of the same bore and stroke as the 7oh.p. model, giving 105-h.p. at 1,350 revs., with a like petrol consumption. Its weight, with similar fittings to the 70-h.p. model, is 440 lbs. It is listed at .£585. This firm are, by the way, listing in addition to these motors an 8oh.p. six-cylinder model weighing 312 lbs., priced at £485. Renault, Ltd. Here will be shown three models of the well-known Renault aviation air-cooled motors, a 40-h.p., a 7o-h.p., similar to those used with success by the British Government, and one of the new 90-JOO-h.p., 12-cylinder models. The Wolseley Tool and Motor Car Co., Ltd. On Stand No. 39 this firm will be showing three aero engines. The largest of these isan 8o-h,p. eight-cylinder vee-type engine of 120-h.p., similar to the engines recently supplied by this company to the Italian Government for use in dirigibles. The cylinders, which are of the separate type, are 5 ins. bore by 7 ins. stroke, and are mounted on an aluminium crank-case at an angle of 90 . The engine is water-cooled, the jackets being of spun aluminium. Induction and exhaust valves are both mechanically operated, and the cam-shaft is driven by gearing from the crank-shaft. The carburettor is of the float-feed and spray type, pressure fed ; and lubrication is of the forced type. Another notable engine will be the 60-h.p. which is very similar to the light hydroplane engine with which this firm have been so success ful. It has eight cylinders, 3f ins. l>ore by 5* ins. stroke, water-cooled by a gear-driven positive-pump. All the valves are underneath and on the inside, and are operated by plungers from a central cam-shaft driven by 6teel gears off the crank-shaft. The cylinders are cast in pairs, and the water-jackets are of aluminium. The weight of this engine, with magneto, water and oil pumps, exhaust pipes, &c., is approximately 350 lbs. The most striking novelty on the Wolseley stand, however, will be a 60-80-h.p. aero motor of an entirely new design. This engine which exhibits a combination of air-cooling and water-cooling, has already given very good results on the test bench. It has eight cylinders, arranged vee-type, with all valves arranged on the head, and mechanically operated. The cylinder-heads, water-cooled valve-boxes, and pistons are all of forged steel, giving an exceedingly light and strong construction. The radiator, which, owing to the air-cooled cylinders, is exceedingly small, is circular in shape, and surrounds the nose which carries the propeller, thus taking advantage of the draught from the propeller, without increasing the head resistance of the power unit. This engine will doubtless be one of the centres of attraction at Olympia, as the Wolseley firm have a reputation for never producing a new article until it has passed and been proved by most exhaustive tests. 151
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