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Aviation History
1955
1955 - 0835.PDF
Uppermost is a model of the Agusta A.Z.-8L, with four Alvis Leonides. Centre is a model of the civil Sikorsky S-58, and, last, the S.N.C.A.S.E. 3130 Alouette II helicopter, with Artouste II gas turbine. This machine holds the world's helicopter height record ond is shown as an ambulance. ture simple enough to make both construction and spares as cheapand easy to fit as possible. By rigid supervision of his design team he has produced some quite remarkable results. The fuselage isof steel tubes with fabric covering and the wing is made up of completely uniform half-ribs, riveted to a simple sheet-metalmain spar with a sheet-metal leading edge forming a torsion box. The whole is fabric covered and laminar flow is expected up to themain spar. The ailerons and double-slotted flaps are severely simple fabric-covered metal sections which took only ten man-hours for prototype construction and, in production, will take not more than four hours. Whole wings will be available as spares. The Continental 85 h.p. engine is relatively large, but will giveample power for emergencies and can be run at low power, thus saving wear. The 15.5 gal fuel load will allow a range of 370-440miles. The undercarriage is tricycle, for safety on rough ground, and is fitted with light Dunlop tyres which in an emergency couldbe replaced by standard motor-scooter tyres. The nosewheel pivot has been included in the rudder-cable circuit, thus simplifying thisand providing nosewheel steering as well. The hydraulic brakes are those of a Renault 4 cv, costing 3-4,000 francs, instead of the40,000 francs for true aircraft brakes. Other car parts, such as oil pressure and temperature indicators, will later be adopted.Price of a production Coccinelle is expected to be 1,200,000 francs (£1,200 approx.) or slightly less, of which the Government pur-chase subsidy would cover about 60 per cent. Jodel-Wassmer D.I20. The Wassmer company built the seriesof Fauvel 36 all-wing gliders a year ago, and has now turned to the construction of a dr luxe two-seater Jodel. This little machinehas a number of refinements many of which the average amateur constructor cannot run to; the main wheels are neatly spatted, thetransparency of the canopy has been extended considerably aft. Outstanding among the helicopter exhibits is a model of the Bristol 191 anti-submarine development of the 173, to be powered with two Alvis Leonides Major engines. Much of the design is wholly new. Powered by a Turbomeca Polos of 330 Ib thrust—the Si pa 300 trainer. clearing the Jodel's blind spot, and the side-by-side cabin is fullyupholstered and radio has been installed. A large engine for this size of aircraft, the Continental C 90.12F of 90 h.p. is mounted onrubber blocks and carries a large silencer. Cruising speed is therefore up to 118 m.p.h., whereas the 65 h.p. engined D.112cruises at 100 m.p.h. The D.120's stalling speed, at 34 m.p.h., is a little higher than that of the standard D.112. HELICOPTERS Bell and Agusta-Bell. The Bell company is strongly representedby an American-built model 47G2 utility machine and the new model 47H streamlined and sumptuously furnished executive de-velopment. These are both to be demonstrated, while an Italian- built Agusta-Bell 47G utility is on show on that company's standin the exhibition hall. The French Government rescue service is showing an American-built model 47G.Bristol 191. First revealed, in model form, the type 191 is a Naval development of the 173, ordered for anti-submarine work.It is to be powered by two Alvis Leonides Majors driving four- blade rotors. The fuselage is to be shortened to fit aircraft-carrierlifts and the undercarriage is completely redesigned in order to reproduce the excellent deck-handling characteristics of the 171Sycamore. Equipment and weapons will be stowed in a long trunk under the centre fuselage. Nord N.C. 1750 Norelphe. Taken over for development byNord, this machine was originally a Cantinicu project. It is powered by a Turbom£ca Artouste shaft-drive turbine of 400 h.p.,the residual exhaust of which is deflected from the tail for anti- torque and steering control. Saunders-Roe Skeeter 6. The prototype of this little machinehas been demonstrated at Le Bourget, after flying over from England in the severe storms of June 9th. An order for fourslightly rearranged versions has been placed, and accommodation will include a bench seat to allow occasional carriage of threepeople, with a single collective pitch lever on the left. The 200 h.p. Gipsy Major 200 will probably be developed to give 225 h.p.,without an increase in weight. Sikorsky S-58. A model of this 12-seat civil machine is shownon the United Aircraft Export Corporation stand. The seating arrangement resembles two connected, three-abreast, railway com-partments, with two sliding doors on the starboard side. S.N.C.A.S.E. S.E. 3120 Alouette I. Predecessor of the Artouste-powered Alouette II, this machine has a Salmson 9 NH engine of 203 h.p. and a disposable load of 1,100 lb. Its rotor head differsconsiderably from that of the Mk II and its performance is under- standably much inferior. S.N.C.A.S.E. S.E. 3130 Alouette II. On June 6th this Artouste-powered, five-seat helicopter gained the world's altitude record for such machines by attaining 26,272ft. The first prototype,registered F-WHHE, is at Le Bourget, saddled with two glossy white totally-enclosed stretcher housings alongside the fuselage.It can carry two sitting wounded as well, and one pilot, but the utility version, of which about 75 have beer ordered into produc-tion by the French Government, will be fitted for general military liaison, spotting, and casualty evacuation. The Artouste providesa maximum 400 h.p., of which only 300 h.p. will normally be
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