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Aviation History
1965
1965 - 0109.PDF
International. 14 January 1965 69 INDUSTRY International Products Company News Great Britain Warmer Hangars Chiefly by reason of their big door areas and (usually) thin walls, aircraft hangars and maintenance shops are notoriously draughty and difficult to keep at a comfortable working temperature. The problems of economically heating these and other industrial buildings have been studied by Boscombe Precision Engineering Co (1963) Ltd, of 35 Warwick Road, Boscombe, Bournemouth, Hants, and the result is the production of a range of mobile paraffin-fired heaters. Known as the "Million-Air," the largest unit in the range is rated at 1,000,000 BThU/hr with an air delivery of 20,000 cu ft/min. At this output fuel consumption is 7.5gal/hr; alternatively, a lower heat output may be given by resetting of a thermostat, with a corresponding reduction in consumption. The trolley-mounted cylindrical unit (overall dimensions of which are 10ft 3in long by 4ft wide by 5ft 9in high) contains a stainless-steel firebox surrounded by an annulus leading to a nosecone with adjust- able louvres. In the firebox is a fan- operated (§ h.p. motor, 400/440V 50c/s a.c.) burner, and air is independently propelled through the annulus by a larger motor (7.5 h.p.). Complete combustion avoids the emission of objectionable fumes, but there is provision for a chimney duct if required. Air ducting may be AirCdreJ. G.Topham (centre). Commandant of the Royal Air Force College of Air Warfare, headed a group of 37 Commonwealth officers who recently visited Sperry Gyroscope Co at Great Neck, NY. Demonstrating Sperry's new "laser gyroscope" to him are Mr H. C. Bostwick (left), manager of inter- national operations, and Mr Warren M. Macek, of the firm's electro-optics group coupled to the nosecone. Various control and safety devices are provided—including a time switch, and a photocell-operated valve to switch off the burner in the event of a flame-out—and the makers state that the heater is approved by insurance companies for use in hangars. The other, smaller, heaters in the range are the "Tropical" (150,000 BThU/hr) and the "Twin Tropical" (300,000 BThU/hr). Recent orders for the "Million-Air" include two units for British United (CI) Airways, to be used at Jersey Airport. One of Boscombe Precision Engineering's "Million-Air" heaters in service in a main- tenance hangar of Air Couriers Ltd (see first news item) English Electric Integration The Luton Division of D. Napier & Son (an English Electric subsidiary) has been merged with the Aircraft Equipment Division of the parent company. Mr J. C. Rivett, who has been Napier's manager at Luton since 1962 and of the Aircraft Equipment Division at Bradford since April 1964, is general man- ager of the new unit. The activities and staff at Luton will remain unchanged and will henceforth be known as the English Electric Co Ltd, Luton. The products of the Aircraft Equipment Division now include complete aircraft electrical-generation systems, motors and actuators supplied from Bradford; the Spraymat aircraft ice-protection systems, Sierracote windows and windscreens, and Sierraglo electro-luminescent panel lighting from Luton; and constant-speed drives from Netherton, Lanes. Aviation Traders (Engineering) Ltd ask us to point out that their Type C and Type E ground power units, mentioned in our December 10 review of airport equipment, conform to the requirements of British Aircraft Corporation Specification VAA. 114 (Elec) Issue 1; that Class E insulation is used throughout; that the units comply with B.S.S. 2613 and B.S. 2G.100; and that the 28V d.c. supply was made available speci- fically for starting the auxiliary power units of the One-Eleven and Trident. Bond-tester Agents Bonded Structures Ltd, of Duxford, Cambs, have been appointed UK agents for the Fokker Bond Tester, made by Fokker's industrial division. The non-destructive test method deve-
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