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Aviation History
1924
1924 - 0558.PDF
A U.S. Navy Experimental 'Plane : The Longren biplane, 60 h.p. three-cylinder air-cooled Wright engine, about to start on a trial flight. First Trials of Zeppelin ZR 3 THE large rigid airship, ZR 3, which has just been built at the Zeppelin Works at Friedrichshafen for the United States under the terms of the Versailles Treaty, made its first trial flight on Wednesday, August 27. Although weather conditions were far from favourable, this first trial was quite satisfactory, in spite of the fact that one of the engines failed during the test. After leaving the shed the ZR 3 cruised round Lake Constance, and then flew off in the direction of Lindau. About three hours later the ZR 3 returned to Friedrichahafen and made a perfect landing. Herr Flemming, a well-known Zeppelin commander, was in charge, and it is reported that 59 passengers were on board. Before leaving for America, on or about September 10, the ZR 3 will make further flights over Germany. The ZR 3 is 656 ft. in length, 90-6 ft. in diameter, and has a capacity of 2,472,000 cub. ft. It is provided with five 400 h.p. May- bach engines, one in the main forward control car, and the others in separate gondolas. The total lift is about 179,240 lbs. and the useful load, including fuel, spares, pas sengers and crew, is 88,190 lbs. Its maximum speed is 76 m.p.h. and the cruising speed is 56-68 m.p.h. The radius of action of ZR 3 varies from 3,500 miles (full speed) to 5,280 miles (cruising speed). Armstrong-Siddeley Engine Successes GRADUALLY the radial air-cooled engine is proving its value and the time cannot be far distant when the type will come into much greater general use than has hitherto been the case. As an instance we mention that the Armstrong- Siddeley " Lynx " fitted in the Avro seaplane used by the Oxford University Arctic Expedition has been doing excellent work in the far north. The following wireless measage has been received by the makers of this engine from Mr. George Binney, leader of the expedition :—" Lynx engine beaten furthest north flying record 80° 15', working excellently in continuing seaplane work under rigorous conditions ; place full reliance on Lynx. Binney, Oxford Expedition, North Eastland." Yet another success has been achieved by Armstrong-Siddeley Motors, Ltd., with the passing, by a " Jaguar," of the new Air Ministry 100-hour type test. The " Jaguar " passed the 100 hours' duration, with additional high speed and maximum power tests, at a rated power of 385 b.h.p. Two other " Jaguar " engines had previously, in June, 1922, and March, 1924, undergone the 50-hour type tests at 325 b.h.p. and 360 b.h.p. respectively. We believe the " Jaguar " is the first and only aero engine to comply with the hew 100-hour type test conditions. A Machine Tool Exhibition FOR those who are concerned with the building of aeroplanes or engines one of the most important exhibitions of the year is that organised by the Machine Tool Trades Association, which opens at Olympia tomorrow, Friday. There will be all sorts of machine tools and machinery for use in industry, and the magnitude of the display can be gauged from the facts that the aggregate weight of the exhibits is about 2,500 tons, and its value will be over ^250,000. The exhibition will be open from 10.30 a.m. to 9 p.m. each day (10 p.m. on Saturday), and finally closes on Saturday, September 27. PUBLICATIONS RECEIVED The Original Book of the Ford. By R. T. Nicholson, M.A. London : Temple Press, Ltd. Price 2s. 6d. net. Department of Overseas Trade. Report on the Economic Conditions in France ; June, 1924. By J. R. Cahill. London : H.M. Stationery Office, Kingsway, W.C.2. Price 6s. net. Aeronautical Research Committee Report for the Year 1923- 1924. London : H.M. Stationerv Office, Kingsway, W.C.2. Price 2s. 6d. net. Aeronautical Research Committee, Reports and Memoranda : No. 903 (Ae. 132).—The Prediction on the Prandtl Theory of the Lift and Drag for Infinite Span from Measurements on Aerofoils of Finite Span. By A. Fage and H. L. Nixon. December, 1923. Price 9i. net. No. 908 (Ac. 134).—Experi ments with Rudders on Twin-Engine Aeroplanes. By F. W. Meredith. December, 1923. Price 9^. net. No. 911 (Ae. 137). —A Generalised Type of Joukowski Aerofoil. By H. Glauert, January, 1924. Price 6cZ. net. H.M. Stationery Office, Kings- way, London, W.C.2. If you require anything pertaining to aviation, study " FLIGHT'S " Buyers' Guide and Trade Directory, which appears in our advertisement pages each week (see page XVI). NOTICE TO ADVERTISERS All Advertisement Copy and Blocks must be delivered at the Offices of "FLIGHT," 36, Great Queen Street, Kingsway, W.C.2, not later than 12 o'clock on Saturday in each week for the following week's issue. FLIGHT The Aircraft Engineer and Airships 36, GREAT QUEEN STREET, KINGSWAY, W.C. 2. Telegraphic address : Truditur, Westcent, London. Telephone : Gerrard 1828. SUBSCRIPTI " FLIGHT " will be forwarded, po UNITED KINGDOM 3 Months, 6 12 s. Post Free .. 7 „ -.15 ..30 d. 7 2 4 ON RATES U free, at the following rates ABROAD* 3 Months, Post Free. 6 ,, I, . 12 „ ., . s. . 8 .16 .33 — d. 3 6 0 These rates are subject to any alteration found necessary under abnormal conditions and to increases in postage rates. * Foreign subscriptions must be remitted in British currency. Cheques and Post Office Orders should be made payable to the Proprietors of " FLIGHT," 36, Great Queen Street, Kingsway, W.C. 2, and crossed London Comity and Westminster Bank, otherwise no responsibility will be accepted. Should any difficulty be experienced in procuring " FLIGHT " from local newsvendors, intending readers can obtain each issue direct from the Publishing Office, by forwarding remittance as above. 558
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