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Aviation History
1914
1914 - 0937.PDF
SEPTEMBER II, 1914. when fitting in place. Details of the internal construc tion of the gear-box are not yet available, but by means of clutches and gearing it is so arranged as to render it possible for either engine to drive either or both pro pellers. The advantages to be derived from such an arrangement will be readily appreciated. In the event of the failure of one engine from any cause, the working motor does not drive that which is broken down, and repairs can, therefore, be executed to the latter during flight. Difficulties in starting are, also, to a large extent eliminated, since where a self-starter is fitted the pilot can start his engine without rotating the propellers, and the engine can jog round until he is ready to commence his flight. Furthermore, it is possible to obtain a far greater range of power by disconnecting one motor irom the propellers, and a much more favourable fuel consumption than when a single engine is fitted, while the air resistance is considerably reduced. The normal speed of the engines is from 1,200 to 1,250 revs, per min., and the gearing inside the gear-box raises the revolutions of the cross-shafts to about 1,800 revs, per min., but a bevel reduction gear supported in the two nacelles which carry the propellers reduces the revolutions of the latter to about 900 per minute. These speeds are, however, capable of being varied to suit the wishes of individual constructors. The nacelles are carried on the inter-plane struts, and are designed to carry the torsional loads produced in the transmission and by the propeller. ® ® THE ROYAL FLYING CORPS. THE following appointments were announced in the London Gazette of September 1st:— R.F.C.—Military Wing.—Lieut. George B. Stopford, R.A., from the Reserve, to be a Flight Commander, to be seconded, and to be granted the temporary rank of Captain whilst so employed. August 8th. Royal Naval Air Service-—Walter Edward Birch has been entered as Flight Sub-Lieut., for temporary service, and appointed to the "Pembroke," additional, for Calshot Naval Air Station. August 31st. Probationary Flight Sub-Lieut. B. C Meats to the " Pembroke," additional, for course of -instruction at the Central Flying School. August 29th. The Admiralty announced on the 6th inst., that the undermentioned gentleman had been granted a temporary commission in the Royal Naval Volunteer Reserve as follows:— Lieut. E. M. Speakman to the " Pembroke," additional, for special duties in connection with the Naval Air Service. The following appointments were announced in the London Gazette of the 4th inst. :— Temporary appointment made at the War Office—To be a Dep. Ass. Director, August 5th, 1914: Capt. (temp. Major) H. Musgrave, R.E., Squadron Commander, Military Wing, Royal Flying Corps. R.F.C.—Military Wing.—Archibald G. Weir to be Second-Lieut, (on probation). September 5th. Royal Naval Air Service.—The following was announced by the Admiralty on the 7th inst.:—Pro bationary Flight Sub-Lieut. E. R. Whitehouse has been confirmed in the rank of Flight Sub-Lieutenant, and appointed to the " Pembroke," additional, for the Isle of Grain Naval Air Station. August 27th. The following appointment was announced in the London Gazette of the 8th inst.:— R.F.C.—Military Wing.—Second-Lieut. Samuel P. l/DCHT] The radiators for the engines are arranged on both sides of each propeller nacelle in two elements per motor, and from their position in front of the screws (the machine illustrated is of the propeller type) receive the maximum cooling effect from the air even whilst the aeroplane is at rest upon the ground or on the water. The common exhaust silencer and the oil reservoir are fitted one on each side of the body of the aeroplane, and are thus also adequately cooled—a desirable feature where long-distance flights are projected. The oil reservoir is of large capacity, and is connected to both engines by flexible metallic tubing. There are two petrol tanks, one of which, the main reservoir, with a capacity of 70 litres, is fitted underneath the engines ; while the other, the supply tank, is arranged above the top planes and is supplied from the main tank by pumps in duplicate driven by vertical geared shafts, which are brought down from the engines. The arrangement and details of the design show that the utmost care has been taken to provide a power unit capable of developing the maximum amount of power while occupying the minimum of space and offering extremely low air resistance ; and the Dudbridge Iron works are to be congratulated upon the result which they have achieved. We hope to hear that the unit has been installed upon an aeroplane at an early date, for, from the success which has attended the SalmsOn engines in the past, we anticipate an equally satisfactory performance from this, the latest type.. ® ® Cockerell, Special Reserve, to be a Flying Officer. August 28th. The following appointment was announced by the Admiralty on the 8th inst. :— The Rev. P. M. Cavrois-0Caffrey has been granted a temporary commission as Lieut. Royal Naval Volunteer Reserve, and appointed to the "Pembroke," additional, for special duty in connection with the Royal Naval Air Service. September 7th. The following appointments were announced in the London Gazette on the 9th inst. :— R.F.C—Military Wing —The following Second Lieutenants to be Lieutenants :—Thomas O'B. Hubbard, Geoffrey de Havilland. August 5th. Military Wing.—Lieut. T. O'B. Hubbard, Special Reserve, is advanced from Flying Officer to Flight Com mander, with the temporary rank of Captain, on appoint ment to the Central Flying School as an Instructor. August 5th. The following appointments were announced by the Admiralty on the 9th inst.:— Royal Naval Air Service.—Messrs. B. Hart, J. Groves, and B. Ffield, all appointed Probationary Flight Sub Lieutenants and appointed to the " Pembroke," additional, for course of instruction at Hendon, to date September 7th. ® ® ® ® A Duel in the Air- AN exciting aeroplane duel is reported from the front by the Reuters Petrograd correspondent. After performing some successful reconnaissances, the aviator, Capt. Nesteroff, seeing an Austrian aeroplane hovering over the Russian forces, at once set out to attack it, in order to prevent it from dropping bombs. Capt. Nesteroff, at the peril of his life, charged straight at the enemy's aeroplane, which was destroyed by the impact, both aviators being killed. 937
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