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Aviation History
1955
1955 - 0875.PDF
24 June 1955 873 STANDS at the SALON New Components and Accessories seen at Le Bourget MANY of the British developments exhibited at the Parisshow were described in our issue of June 10th; but anumber of foreign exhibits, and some further British items, remain to be considered, and these are listed below inalphabetical order of manufacturer. A.I.A. The Italian stand of Associazione Impress Aeronau-tiche was partly occupied by Italjet, a firm anxious to establish itself in the design, development and mass-production of allforms of rocket motor. It has the backing of three associate com- panies : Whitehead - Moto Fides, Stacchini, and (by far the mostimportant) the American company Aerojet-General. Actual exhibits by Italjet included standard JATO units ofAmerican design—in particular the 14AS-1000 solid-propellant unit which has been made by the thousand in America—andvarious free-flight vehicles, including a 6ft test rocket by White- head, a Stacchini bi-propellant rocket missile and a small spin-stabilized weapon of 2|-in calibre. A.S.T. Exhibited in model form was a new high-speed targetfor air-to-air practice (the model showed a standard Hunter as tug). The target, which is considered to be one of the best in theworld for really high-speed towing, is a development of the C.4 first shown at Farnborough in 1953. Compared with the C.4, thenew target has a reduced span, the wing being a true delta with- out untapered wing-portions outboard; the fins are also somewhatcloser together. Bendix. The various divisions of this large American corpora-tion had much that was new to show. Particularly finely en- gineered were the various air-turbine-driven accessories, of thetype for which there is now a great demand for military aircraft. As a typical example, the 34E10-1 afterburner-fuel pump may becited; this has a two-stage turbine drive (pressure, 48 lb/sq in inlet and 14.7 exhaust; inlet at 500 deg F), a centrifugal pump deliver-ing up to 30,000 lb/hr at 600 lb/sq in delivery, and an auxiliary drain impeller. The unit has a number of good features, such as FUELPUMP RAM AIR TURBINE (RETRACTED) TURBINE FAIRING A typical installation for a ftotol air-turbine drive. Such units can be hydraulically ex- tended into the air- stream and, at speeds approaching Mach 1. can reach full speed in CRADLE u^ \ ^"^^" ° second or HINGE DOOR HINGE JACK grease-packed, fuel-cooled bearings, and the total weight is 26 lb.Another, smaller, air-driven pump is Type 866922, used for pumping dry air to provide a source of vacuum or oil-free airpressure. Typical applications include noxious-gas detection, or tank, ignition or radar-harness pressurization; the specificationincludes inlet and outlet pump pressures of 26 and 30in of Hg abs., an air flow of 0.15 lb/min (2 cu ft/min) with a turbine flowof 2 lb/min at 8 to 100 lb/sq in gauge at rated 10,000 r.p.m., and a total weight of 4.4 lb. Dowry. Two small but important products from the Groupare the three-position magnetic indicator and the Seloc range of lock-seal washers. The latter comprise, in effect, a star-typelock washer around which is moulded a synthetic-rubber sheath. When used under a nut or bolt-head, the tangs of the washerpierce the rubber and effect a secure lock; at the same time, the synthetic rubber seals the hole. The rubber specification of thestandard Seloc range is proof against water, mineral-base oils and alkalis.The three-position indicators are neat 2.2 oz units giving a display some iin-square. Each indicator can be energized to provide any of three separate indications (each of which cantakc the form of any pattern, in any colours) corresponding to "off," "on-1" and "on-2." Fiat. Some indication of the scale of the Turin company sgas-turbine products was manifest by the display of the complete LUBRICATION ANDREGULATOR PUMP DE-AERATOR REDUCTION GEARBOX FOR ACCESSORIES Shown publicly for the first time at the Salon was the 200 h.p. accessory box for the Leduc 022 supersonic ramjet aircraft. The shaft-power will be derived from an Atar turbojet mounted in the centre of the duct. rotating assemblies—compressor, turbine and coupling shaft—for the de Havilland Ghost 48 Mk 1, the Allison J35 and the General Electric J47. The two last-named (both American axialturbojets) are not wholly made in Italy, but Fiat have large con- tracts to make parts and carry out overhaul. The Ghost is, infact, made wholly in Italy, and is supplied to Sud-Est for instal- lation in the Sea Venom (Aquilon). Gebecoma. Otherwise known as the Groupement Beige desConstructeurs de Materiel Aeronautique, this organization had a stand dominated by a Hunter port wing, of wholly Belgianmanufacture, bearing Belgian camouflage and roundel, and the serial "ID6." Sabca, Fairey and other firms are taking part inHunter production (in addition to work by Fokker and other Dutch companies, and the complete manufacture of Avons bythe Fabrique National). F.N. had a part of the Gebecoma stand, filled with parts of Rolls-Royce centrifugal turbojets; productionof these is on a small scale, for Fokker S.14s, the main bulk of Derwents now having been completed (to a four-figure total). Gebecoma also exhibited a centre-fuselage structure for anS.R.7B Monitor (Farman design), a tandem trainer built under licence by Stampe-et-Renard. There was also to be seen a greatarray of Dowry hydraulic components, licence-built by Sabca. Hispano Suiza. Reference to p. 384 of our issue of March 25thof this year will make clear the extent to which this group— mainly renowned for their turbojet production—make under-carriage units. In addition to the complete landing gears for the Vautour and Magister (illustrated in the issue referred to) Hispanoshowed a main bogie for the Caravelle jet transport. Although similar in conception to that of the Comet 2, the detail geometryof the whole unit has been changed. Wheel, tyre and brake sizes are, however, those of early Comets. International G.E. In addition to the J47 turbojet mentioned This experimental rocket-propelled model was the largest exhibit on the O.N.E.R.A. stand (this is a govern- ment aeronautical-research organ- ization). Designated OPD.320, the vehicle carries a useful load of 110 Ib. PITOTHEAD PHOTOMETRIC SENSER INFORMATION GENERATOR TELEMETERING I TRANSMITTER,-; RECORDER REMOTE CONTROU GUIDANCE RECEIVERAND MINIATURE RECORDER INFORMATION CONVERTOR
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