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Aviation History
1914
1914 - 1080.PDF
This lever is mounted upon an arc of approximately 180;, divided into three equal divisions of about 6o' each. when the control lever is at, or near, one end of the arc, the ignition is fully advanced, and the full quantity of fuel is taken by both sets of four cylinders on each side, which are then working at full power. By moving the lever through the first 60 , the time of ignition is fully retarded—further movement cuts out the fuel supply to the^set 01 cylinders on one side, and by the time the end of the second 60 is reached, the exhaust valves of that set are lifted and the ignition is switched off, thus causing the engine to be driven by one set of machines fitted with twin chain-driven air screws ; but designs have been prepared for enabling the air screws to be mounted directly upon the end of the crankshaft, in which event double ball thrust bearings will also be incorporated in the crank-case itself. The weight of the four-cylinder engine is 1 bo lbs., and that of the eight-cylinder 280 lbs., complete with flywheel; and Mr. Beatty is prepared to accept orders for either of these engines at a price of /250 and £375 respectively. Every care has been taken in getting out the designs to make the construction as simple as possible, consistent with efficiency and accessibility ; and in the manufacture Fig. 3.—Beatty Aero Engine Details.—On the left, the tappet mechanism of the 40-45 h.p. motor; in the centre, a sectional view of the petrol pump of the 80-90 h.p. engine; and on the right, the water circulating pump and its driving gear of the 40-45 h.p. engine. In the extreme left top corner is seen the valve-rocking lever support on the Beatty aero engines. cylinders runnirg with a retarded spark. On completing the movement of the lever, the fuel supply to the remaining set of cylinders and the ignitinn for those cylinders is cut out, and the exhaust valves are raised, so that the crankshaft revolves freely with the exhaust valves open. By this means, it is anticipated that a considerable variation in the power output will be obtained. The engines shown in our illustrations are arranged for use on none but the best materials have been employed, while all parts are made to jigs and gauges to facilitate the supply of spare parts and ensure interchangeability throughout. The manufacture of the various details has been placed in the hands of firms who are specialists in the particular class of work to ensure the workmanship being well up to standard practice ; but the erection and assembling are done at the Beatty School at Hendon. ® ® ® ® THE BRITISH AIR SERVICES. Royal Naval Air Service. THE following promotion was announced by the Admiralty on the 26th inst.:— Flight Sub-Lieut. G. Dyott, promoted to Acting Flight Lieu tenant, with seniority of October 22nd. The following was announced by the Admiralty on the 27th inst. :— Probationary Flight Sub-Lieut. R. J. F. Tench, to the " Pembroke," additional, for duty with Royal Naval Air Service. To date October 5th. The following was announced by the Admiralty on the 28th inst.:— Temporary Sub-Lieut. F. Brook to the " Pem broke," additional, for duty with Naval Air Service, temporarily, to date October 24th. Royal Flying Corps (Military Wing). The following was announced in a supplement to the London Gazette issued on the 21st inst. :— George C. N. Nicholson to be Second Lieutenant (on probation). October 21st, roi4. The following was announced in a supplement to the London Gazette issued on the 25th inst. i— Second Lieutenant Richard R. O. Paterson is confirmed in his rank. The following was announced in the London Gazette of the 27th inst. :— Lieut. Frank B. Binney, Royal Artillery, from the Reserve, to be a Flying Officer, and to be seconded Dated August 31st, 1914. Central Flying School. The following was announced in a supplement to the London Gazette issued on the 26th inst.:— Capt. Francis F. Waldron, 19th (Queen Alexandra's Own Royal ussars. a Flight Commander, Military Wing, to be an In- MacLean, Royal Scots (Lothian Hussars, n structor, vice Capt. A. C. H. Regt.). October 17th, 1914. FOR ADMIRALTY REQUIREMENTS.-A consignment of Cellon dope leaving the works for delivery under an Admiralty contract IO80
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