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Aviation History
1913
1913 - 0670.PDF
jySHf engine, until when within less than a hundred feet of the ground she flattened out splendidly, and went sailing off round the aerodrome. Coming back to near number one pylon, at a height of only about fifty feet, Pickles now set her to climb at a most terrific angle, and held her to it for so long that we on the ground thought he must surely overdo it, particularly as he was flying against a very stro ng head-wind. He must have made that poor little 'bus climb at least three hundred feet in one great ® ® ® ® HORSE-POWER CHART OF THE NEW 60-65 H.P. ISAACSON RADIAL ENGINE. JUNE 28, 1913. slanting run, before getting on to an even keel, and it looked too much, though Pickles says it was not, and that he could feel her pulling all the time. Several more flights of the same character completed that day's per formance, surely one of the most sensational flying exhibitions put up at Hendon since Chevilliard left us, and gave us a chance to breathe again. A wonderful pilot-—a wonderful machine! The Pickles-Caudron combination should not be separated. H. E. S. THE curve shows the variation of speed between 1,000 and 1,225 r.p.m. The maximum power output occurs at 1,080 r.p.m. and is 679 h.p. The weight of the engine ready for fitting into the same frames that support Gnome 70 65 and replaced without dismantling the cylinders. It is claimed that the engine can be completely dismantled in 22 minutes and reassembled in the same time. The manufacturers also state that the inlet valves will work a f c6 R.P.MN 00 1000 1025 IOS0 |075 1100 engines is 196 lbs.—viz., 3 lbs. per h.p. for 65 h.p. The petrol consumption at 64 h.p. is 3"8 gallons per hour. The engine is designed by Mr. R. J. Isaacson, and is built by Messrs. Manning, Wardle and Co., at the Boyne iias 1150 1175 1200 1225 equally well without springs. The engine is provided with a special distributor to facilitate self-starting on battery ignition or by means of a special magneto. The fuel supply is a direct feed through an adjustable cock Engine Works, Leeds. The cylinders are machined from solid nickel chrome steel, and are held radially in a steel crank case. For the purpose of inspection the cover plates can be removed from the crank-chamber in about 6 minutes, and the pistons can be taken out through this orifice after the front part of the shaft has been parted by means of a special tool. The pistons can be removed and an airtight valve. The valve and cock are coupled to levers that moved together constitute the throttle control, and moved separately serve as an adjustment of the mixture. Inside the engine a perforated plate is arranged to intercept flame from flashing back to the carburettor, ordinary gauze having been found inadequate for this purpose. 696
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