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Aviation History
1921
1921 - 0148.PDF
MARCH 3, 1921 the engine, for instance, the breather pipes, which are of aluminium, are carried up clear above the centre section, and air is taken to the carburettors through air scoops located on the outside of the fuselage. The petrol is carried in tanks mounted in the wings and connected to the car- burettors by large copper pipes with flexible couplings. Fan driven pumps deliver petrol to the highest point in each tank, thus maintaining a constant gravity head at all fuel levels. Overflow from the carburettors is conducted outside the fuselage by pipes. The radiator is mounted high up on the centre section, • immediately behind the engine. It is provided with a heavy canvas shutter which can be set at any desired position whilst the machine is in flight. The air-speed venturi tube is mounted above the radiator, out of the air screw slip stream Delco ignition, and two Stromberg carburettors are fitted, the ignition levers, together with the throttle lever, being located in a central position forward of the front seat. The levers operating the radiator shutter are in the cabin roof, within easy reach of the pilot. Dual, or single, stick control is fitted, and the rudder is operated by two sets of interlocked pedals and a double set of cables entirely enclosed within the fuselage. The landing chassis is especially interesting. The two 750 by 125 wheels are spaced fairly wide—7 ft.—and are carried on a 2 in. tubular axle sprung by rubber cord to two V-struts. The axle, which has a vertical movement of 6 ins., is located a few inches forward of the apexes of the V-struts and forms the leading edge of an aerofoil-like fairing coa- necting the axle and the tie-rod to which the wing-bracing struts are attached. The axle being free to move vertically, this fairing pivots, of course, about its trailing edge, which is formed by the tie-rod. A tube connecting the front and rear left-hand struts serves as a step when entering the cabin. The struts are of ash, and are attached to the fuselage by strong pinned ball and socket fittings ; the Vs are wire braced trans versely. A curved leaf-spring tail skid is fitted. In actual flight this machine has proved remarkably efficient, as might be expected judging by the clean design throughout. The principal characteristics of the Jacwrri monoplane are :— Span .. .. . . . . 52 ft. Overall length .. .. .. 29 ft. Overall height .. .. .. .. 10 ft. 6 in. Wing area .. .. .. .. 400 sq. ft. Weight empty .. .. .. .. 1,800 lbs. Weight fully loaded .. .. .. 3,400 lbs. Fuel capacity (2 tanks) .. . . 80 galls. Oil capacity .. . . . . 4 galls. Fuel consumption per hr. .. .. 8-9 galls. Radius of action .. .. *- . . 900-1,000 miies. Speed, half-throttle .. .. .. 100 m.p.h. Speed, three-quarter .. .. .. 125 m.p.h. Landing speed (full load) .. .. 45 m.p.h. Landing speed (half-load) .. . . 38 m.p.h. Approximate .. .. .. .. 22,000 ft. IKe Royal &ero Clu. of the United Kti\gdoi OFFICIAL MOT ICES TO MEMBERS HE ANNUAL GENERAL MEETING THE Annual General Meeting of the Members of the Royal Aero Club of the United Kingdom will be held on Wednesday, March 30, 1921, at 3, Clifford Street, New Bond Street, London, W.i, at 6 p.m. Notices of Motion for the Annual General Meeting must be received by the Secretary not less than twenty-one days before the Meeting, and must be signed by at least five Members. Committee In accordance with the Rules, the Committee shall consist of 18 Members. Members are elected to serve for two years, half the Committee retiring annually. Retiring Members are eligible for re-election. The retiring Members of the Committee are :—- Lieut.-Col. John D. Dunville. - Lieut.-Col. Spenser D. A. Grey, D.S.O. Brig-Gen. Sir Capel Holden, K.C.B., F.R.S. Squadron-Leader T. O'B. Hubbard, M.C., R.A.F. Lieut.-Col. F. K. McClean. Air-Commodore E. M. Maitland, C.M.G., D.S.O., R.A.F. The Viscount Northcliffe. Lieut.-Col. Alec Ogilvie. F. Handley Page. Sqnadron-Leader T. O'B. Hubbard, M.C., R.A.F., and Lieut.-Col. Spenser D. A. Grey, D.S.O., will be going abroad shortly, and do not offer themselves for re-election. Any two Members of the Club can nominate a Member to serve on the Committee, provided the consent of the Member has been previously obtained. The name of the Member thus nominated, with the name of his proposer and seconder, must be sent in writing to the Secretary not less than fourteen days before the Annual General Meeting. International Seaplane Race The Royal Aero Club has decided to contribute £i,oo» towards the expenses of the British representatives competing in the International Seaplane Competition for the Jacques Schneider Trophy, to be held in Venice in September. Italy is the present holder and each Country is entitled to challenge with three competitors. The Royal Aero Club will select the three competitors to represent Great Britain, and all enquiries should be addressed to the Secretary. Gordon Bennett International Balloon Race 1921 The International Gordon Bennett Balloon Race will be held this year at Brussels in September next. The British competitors will be selected by the Royal Aero Club, and anyone wishing to compete should coot- municate at once with the Secretary. Offices: THE ROYAL AERO CLUB, 3, CLIFFORD STREET, LONDON, W.i. H. E. PERRIN, Secretary. King Albert Receives the D.F.C. . As already announced in FLIGHT, the King has awarded the Distinguished Flying Cross, which, it should be remem- bered, is the only War decoration in the world which is awarded to officers solely for gallantry in the air, to His Majesty the King of the Belgians for personal gallantry during the War, and the actual investment was made on February 24 in Brussels by Wing-Commander His Royal Highness the Duke of York, who travelled to Brussels on February 24 specially for this purpose. His Royal Highness was accompanied by the following Royal Air Force Officers :— Comptroller and Equerry Wing-Commander L. L. Greig, M.V.O. ; Air-Commodore C. L. Lambe, C.B., C.M.G., D.S.O. ; Air Commodore F. C. Halahan, C.M.G., D.S.O., M.V.O. ; and Group-Captain C. L. N. Nowall, C.M.G., C.B.E., A.M. A Guard of Honour was provided by the Royal Air Forceat Dover. The continual presence of His Majesty the King of the Belgians in the field with his army is well known ; but what is not 30 well known is the fact that on many occasions His Majesty was flown over the lines in British aircraft in order that he might personally reconnoitre enemy positions. For essen- tial reasons this information was withheld during the War. Sir H. M. Trenchard appointed Principal Air Aide-de- Camp to H.M. the Ring THE Air Ministry announces that the King has beea graciously pleased to approve of the appointment of Air- Marshal Sir Hugh Montague Trenchard, Bart., K.C.B., D.S.O., Chief of the Air Staff, to be Principal Air Aide-de- Camp to His Majesty. It is understood that Sir Hugh is likely to accompany Mr. Winston Churchill on his journey to Egypt with the object of investigating the possibilities of replacing the armies of occupation in Mesopotamia and Egypt with units of the R.A.F. It is to be hoped that Mr. Churchill will support Air-Marshal Trenchard's suggestions for the garrisoning of the East, as this will enable the Army forces to be greatly reduced, whilst the cost of maintaining the Air Force will be a great deal lew than that of maintaining the present Army. I48
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