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Aviation History
1952
1952 - 1640.PDF
THIRD GENERATION: The wings and hull "crown'section" of this molern-looking Martin experimental flying boat were originally those of a war time Mariner. Next they were fitted to the XP5M-1 (at present in production as the Marlin) and now they appear on this "M-270," with a hull 12ft longer than that of the XP5M-1 and having a 15:1 length /beam ratio. The white lines correspond to those on a tank-test model and serve to check the tank results. Note the leading-edge slots. HERE AND THERE Source of Supply U.S.A.F. European H.Q. at Wiesbaden signed a multi-million-dollar contract last Friday for the manufacture of jet-aircraft spares by the Italian aircraft industry. Any Old Shooting-irons? AMERICAN representatives arrived in Sydney last week to buy derelict U.S. air craft from the R.A.A.F. It is stated that they are particularly interested in the armament, which they will send back to the States—presumably for use in training. Multi-lingual A SECOND French edition of the Flight book Gas Turbines and Jet Propulsion has been published by Dunod of Paris. This standard work has also appeared in Dutch, Italian and Spanish, and in a special American edition. German Research Again A REPORT from Bonn states that the German Air Research Institute has taken up its work again at a former Luftwaffe airfield near Essen. The names of Pro fessor Schmidt and Professor Esau are mentioned in this connection, and it is further reported that the research in hand has so far been confined to paper work. S.N.E.C.M.A.'s New Turbojet MENTION has previously been made of the existence of a new S.N.E.C.M.A. turbojet design of unstated thrust, and a guarded announcement now follows indicating that the "realization of the pro totype" has been unusually quick. Serious development work did not begin until early in 1951, yet the first unit was being run-in on the bench at the end of last month. The name given to this new power unit is the Vulcain. Aids to Industrial Safety SPEAKING at the opening of the Mechanical Handling Exhibition and Con vention at Olympia last week, Sir Walter Monckton, Minister of Labour and National Service, said that more than 53,000 accidents a year in factories occurred during the handling of goods and materials; many of them were due to things being dropped or allowed to slip from the hands and could have been avoided by the greater use of mechanical aids. The exhibi tion at Olympia—organized by Mechanical Handling—ends tomorrow evening, June 14th. Two Air Displays "Off" THE usual "air day" at R.N. Air Station, Stretton, near Warrington, cannot be held this year because of an extensive runway-construction programme. Another can celled event—this time one for which a date had been fixed—is the Fair Oaks Flying Club's "at home" and display, which was to have taken place tomorrow, June 14th. Past and Future "FOR close defence the guided missile is the thing, but if you have to go into enemy territory I think you will always have to have piloted aircraft," said Air Chief Marshal Sir Philip Joubert in a speech in London last week. He foresaw the night and day fighter of the future as a large aircraft equipped with a battery of guided missiles which it would discharge at the enemy after sighting it on a radar screen. Sir Philip was speaking at the banquet of the Worshipful Company of Loriners, one of the ancient City livery companies. A Factor Named Joe SOME unusually interesting aspects of airliner operation were discussed during the recent I.A.T.A. technical conference in Copenhagen. Though concerned pri marily with approach and landing aids, the discussions were not by any means confined to the various systems themselves. Both pilot-psychology and aircraft design were the subject of critical and well-informed opinion. It was pointed out, for instance, that approach procedures and devices CONFIDENTIAL, like that of its full-scale pro totype, is the performance of this jet-propelled flying model of the Hawker Hunter, the work of Mr. D. M. Dent. The power unit is one of the new Jetmasters produced by Wilmot, Mansour and Co., Ltd., of Totton, Southampton, and the only departures from the full-scale airframe design are the provision of dihedral on the main- planes and the scaling-up of the tail surfaces. should be designed to suit a notional pilot named Joe—"a creature of habit and instinct"—rather than some superman of outstanding ability. Aircraft stability during power-changes was important, as were good stalling characteristics during flare-out, while flaps should be designed to retract quickly, during an overshoot, to the approach or climb setting, and more slowly thereafter. We commend these I.A.T.A. views—summarized on pages 718-719—to designers. Aerodynamic Charivari "WE ought to begin with balloons, which overcome gravity by easy stages, pouring sand on it whenever it seems to be getting the better of them"—from an introduction to aerodynamics by "Mr. Punch," whose Summer Number contains an aviation supplement on which his contributors deserve congratulation.
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