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Aviation History
1910
1910 - 0195.PDF
MARCH 12, 1910. one a 4-cyl. model and the other a 6-cyl. motor of 45-h.p. The bore and stroke of the cylinders of the latter are 90 by no mm., and the weight, including fly-wheel, carburettor, &c, is 286 lbs. Clement (72). Or the three motors exhibited by Mons. Clement, one of 40-h.p. has 4 cylinders no mm. x 120 mm. ; another, 4 cylinders 155 mm. x 185 mm. ; while the third is of similar dimensions, but has 6 cylinders. The two latter have the cylinders cast in pairs, whilst the former has the 4 cylinders cast en bloc. On the two largest the cylinders have a special arrangement of compression- release taps for starting purposes. Cochrane —). — SPECIAL small motors of light design, ranging from J-h.p. to 3-h.p., as well as two motors of 20-h.p. and 30-h. p. respectively. (/0£dl The above illustrations show a twin-cylinder horizontal engine and propeller that have been supplied by Messrs. Cochrane to Mr. H. Moya, and is on view at Olympia for the purpose of demonstrating a system of vertical and horizontal steering by means of the propeller. The engine is fitted with a Bosch high-tension magneto, and develops 3-h.p. The propeller is 3 ft. 3 ins. in diameter, and gives a pull of 17 lbs. at 1,200 r.p.m. Darracq (77). Two motors are ot the horizontal opposed type and two with vertical cylinders. One of the former, of 25-30-h.p., with two cylinders, was used by M. Santos-Dumont in his cross-country flights on his " Demoiselle " machine. The other horizontal engine has four cylinders, and is of 50-60-h.p. Of the other two engines, both of which have four cylinders, one is of 50-60-h.p. and the other of 100-120-h.p. E.N.V. (74). . Two engines of this make are shown by Messrs. Warwick Wright, Ltd., one of four cylinders giving 20-30-h.p., the weight being under 2£ lbs. per horse-power, while the other engine has «ight cylinders, is of 50-80-h.p., and weighs 287 lbs., the bore and stroke being 105 by no mm. Green (40). , Two engines, both with four cylinders, one of 30-35-h.p., ot which the bore and stroke are 105 by 120 mm., and the other of 50-60-h.p., the bore and stroke being 140 by 146 mm. The weight of the former engine without the fly-wheel is 150 lbs., while the latter weighs 250 lbs. Full particulars regarding the construction of these engines will be found elsewhere in this issue. Gregwre-Gyp. (75), A 30-40-H.r- motor, having four vertical cylinders cast en bloc, the bore and strolcebeh^ 92 by 140 and the guaranteed horse-power 35 at 1,600 revolutions. The eagine complete with high-tension magneto, carburettor, and lubricator iwagjks 156 lbs. Humber (53). THREE-CYLINDER air-cooled motor-of 30-h.p., the bore and stroke of the cylinders being 108 x 135 mm. Also 50-h.p. four- cylinder water-cooled engine with copper jackets, the cylinders having a bore and stroke of no x 120 mm. being cast separately. Lamplough (37). Two different types of engine. One known as the positive explosion turbine has four equidistant tubes open at both ends which form charging and firing cylinders, double pistons in each cylinder being connected by rods to the periphery of the oscillating ring at each end of the motor. These rings carry rollers that bear upon angular paths and by this means the shaft is revolved. In the other engine the four cylinders are fed from a special charging cylinder. Lascelles (71). FOUR-CYLINDER semi-radial air-cooled engines of 35-h.p., bore and stroke being 100 x 120 mm., and the weight 150 lbs. complete. N.E.C. (88). THREE types of engines for aerial work, having two, four and six cylinders, and being of 15-20, 35-40, and 50-60-h.p. respectively. They are of the two-cycle type, and the design is the outcome of many years' work devoted to the perfecting of this type of engine by the N.E. Co. An interesting part of the engine is the central mechanism which is employed for forcing in the air and gas and for timing the inlet of the gas so that none of it escapes through the exhaust port. Phoenix (30). RADIAL rotary motors of ten different powers, having from 2 to 12 cylinders, and ranging from 4-h.p. to 100-h.p. The bore and stroke of the smallest is 2\ ins. x 2J ins., while of the largest it is 4J ins. x 5 ins. Renault (49). Two engines intended for aeroplane work are on exhibition on the Stand of Messrs. Renault Freres. One is of 50-h.p. and has eight cylinders of which the bore and stroke are 90 by 120 mm. The cylinders are air-cooled and arranged in the form of a V. The other engine is of 25-h.p. and has four cylinders. R-H. (54). EXHIBIT by Berliet Motors. Four-cylinder vertical engine, designed and constructed by the R.H. British Aeroplane Syndicate. The cylinders are separate and have a bore and stroke of 5 ins. The weight is 340 lbs., including a fly-wheel that weighs in itself 65 lbs. The fly-wheel has been built with a steel-rim support on wire brakes, like a bicycle wheel built by Rudge-Whitworth. S.E.M. (11). A TWO-CYLINDER tandem air-cooled valveless engine 01 which the bore and stroke are no by 120 mm., the weight no lbs., while the engine gives 25-h.p. Star (80). THE engine has four steel cylinders having a bore and stroke of 4 in. by 5 in. The water jackets are deposited copper, while the valves are overhead and mechanically operated. All the bearings are made unusually large, and the crank-shaft, gudgeon-pins and Continuedon iage 193) Photograph of the Warren-Simpson 4-cyl. engine, from which can be_seen the peculiar arrangement of the cylinders, 191
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