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Aviation History
1945
1945 - 2147.PDF
466 FLIGHT NOVEMBER IST, 1945 yet come to take safety in the air as a matter of course. For that reason the statement made last week by the Under-Secretary for Air, Wing Xommander John Strachey, in the House of Commons, is doubly welcome, and deserves to be brought to the attention of all and sundry. In reply to a question, he stated that the total passenger-mileage for Transport Command had nearly doubled since July ist last, and had now reached the figure of 190,000,000 passenger-miles a month. On the scheduled services there had been four fatal accidents, causing the deaths of 18 crew members and 18 passen- gers. Disregarding the crew members, this meant that only one passenger was killed in about 13,000,000 pas- senger-miles. That may not compare with the expec- tation of life among regular railway travellers, but it represents a risk so small that very few would hesitate to accept it. Let each one put it to himself in plain language. If thirteen million people each flew one mile, or thirteen thousand people each flew a thousand miles, and in either case only one lost his life, surely even the most timid must admit that flying is a very safe way of travel., Yet some of the accidents mentioned occurred in conditions of war. When peace is fully restored, it will be possible to make flying a good deal safer. A Clean Fighter RELEASE of figures relating to the de HavillandGoblin II turbojet and its associated aircraft, theVampire, discloses that in this machine the R.A.F. has a very efficient fighter. A speed of 540 m.p.h. for a thrust of 3,000 lb. (corresponding to 4,320 h.p.) must be regarded as extremely good. It means that in " lull war paint" the Vampire could beat the existing speed CONTENTS The Outlook - . - Avro Lincoln II Farnborough Demonstration - Here and There - - - • De Havilland Goblin A.I.D. Test House The First Freedom The New C.A.S. Vickers-Supermarine Spiteful Two American Heavies Problems of Demobilisation - Science and Industry British South American Plans Correspondence Service Aviation 465 467 469 470 472 475 476, a & b 477 478 481 482 483 484 486 488 record by 70 m.p.h. That was not the only object of making the record attempt with the Gloster Meteor which, for a very much greater power expenditure, is considerably faster and should be capable of raising the record to the 600 m.p.h. neighbourhood. A few comparative figures may be of interest, since the two aircraft differ a good deal in size. The thrust per square foot of wing area is approximately 20 lb. for the Meteor. For the Vampire it is only 11.28 lb. The thrusts per pound of loaded weight are 0.58 and 0.35 respectively. If aircraft followed the simple V2 law, the Vampire should reach 600 m.p.h. for a thrust of 3,7001b. Unfortunately at these high speeds sonic velocities are approached locally, and thrust required increases more rapidly than as the square of the speed. But the figures do ipdicate the aerodynamic cleanness of the Vampire fighter. Unjht" photograph. BRITAIN'S BIGGEST BOMBER : A fine air-to-air shot of the Avro Lincoln by H. J. Julyan. It was taken from the rear turret of another Lincoln and illustrates the unobstructed vision from that position.
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