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Aviation History
1936
1936 - 1719.PDF
698 FLIGHT. JUNE 25, 1936. Teleflex controls : above, an operating pinion and, on the right, an under carriage indicator. The lower sketch shows how the pinion engages with the cable. SIMMONDS (Stand 40).—The Sim- monds-Corsey control is claimed to be the only flexible control which the Air Ministry has permitted to be used in production quantities for the main flying controls and is used both on Service and civil machines. The main appli cation., however, is for engine controls, fuel cock controls, indicator gear and so on. The Simrnonds-Corsey system is remarkable for its light weight and unusually low friction and backlash; it is simple to install and capable of easy and complete inspection and lubri cation. Several types of Simmonds- Goudime navigational instruments will be available, but particularly interest ing is the automatic course and dis tance calculator which weighs only lib. 130Z. This is a precision instrument designed for the solution of three-vector problems. It is absolutely fool-proof in operation, requires no knowledge of navigation and may be worked with one hand even when wearing gloves. Sim- monds cowling clips for doors and covers will also be shown. These can be operated entirely by the fingers. Examples of Simmonds Flexiclips for locating cables and pipes firmly in the aircraft, whilst at the same time per mitting quick detachment for inspection and replacement, will be seen, as well as the Simmonds elastic stop nut used almost universally. Makers: Simmonds Aeru-ebsories, Ltd., Shell-Mex House, Strand, London, W.C.2. SMITH'S (23, 24, 25).—This company's stand at Hatfield will be on similar lines to that which was arranged by them at the Milan exhibition. A full range of dashboard instruments, including Husun compasses, will be shown, as well as dashboard layouts with specialised blind- flying instruments laid out in such a way as to be easily read. Various navi gating instruments such as drift sights, course-setting bomb sights and Addison- Luard calculators will also be shown. Finally, of course, the D.H. Dragon will be on the aerodrome and in this will be seen the Smith's automatic pilot and a host of instruments, quite apart from the special radio equipment. Makers: Smith's Aircraft Instruments, Crickle- vvood, London, N.W.2. TELEFLEX (Stand 5).—Various ex amples of push-pull and rotary control runs employing Teleflex wheel drives and quickly-detachable end fittings will be shown by M.R.C., Ltd. These con trols will be running for 16ft. with four right-angle bends and will be showing the three smaller control sizes. Eight samples of Teleflex cables will be shown as well as standard boxes and the necessary accessories. These controls are used by fourteen aircraft manufac turers in this country as well as by a number of accessory firms who use them for operating such additional items of equipment as c.p. airscrews, landing lights, radio and special indicators. Makers: M.R.C., Ltd., 9, Cavendish Square, London, W.i. Radio MARCONI (Stand 56).—This company, whose aircraft and aerodrome radio equipment is used by the principal air transport organisations in over thirty countries in all parts of the world, will be showing a wide range of transmitting and receiving apparatus for aircraft ser vices. These will include new designs for commercial, military and light trans port aircraft; direction-finding and " homing " devices', facilities for remote control; constant speed generators; and accessories. The amount of space avail able will not be sufficient to enable the Marconi-Adcock D/F installation to be exhibited, but photographs will be in cluded of this important item in air ser vice organisation. More than sixty of these installations have been ordered for civil aerodromes throughout the Empire and foreign countries, including over thirty for use on the Empire air route. One of the principal sets to be exhibited is the new Type AD57/58/72 aircraft transmitter and receiver specially de signed for the Imperial Airways fleet of flying boats "and described in Flight of April 2, 1936. The AD63/64 20-watt short-wave equipment, and the D/F receiver with visual indicator will be interesting exhibits.—Marconi's Wireless Telegraph Co., Ltd., Electra House, Vic toria Embankment, London, W.C.2. RADIO TRANSMISSION EQUIP MENT (Stand 82).—Best known, per haps, as the manufacturers of an inter esting '' homing '' and D / F radio set suitable for use by private owners, this company will also be exhibiting several types of transmitters and receivers, in cluding a combined set with all the neces sary controls. A ground station trans mitter should make an ideal back centre exhibit. In addition, the R.T.E. Mono- spar S.T.25, which is very fully equipped, will be exhibited on the aerodrome. An other important item will be a short wave approach beacon receiver. It The Marconi AD57/58/72 radio equipment, as used on the new Empire flying boats. is interesting to notice, in relation to the aircraft homing device, that a special instructional booklet has been produced giving complete information about its working and suggesting remedies for any faults which may occur.—Radio Trans mission Equipment, Ltd., 111, Charing Cross Rd., London, W.C.2. STANDARD (Stand 26).—Examples of radio equipment for aircraft as well as for ground stations will be exhibited by the Standard Company. Of the former there will be the R.2, the R.6, and the R.9, which provides for five fixed wavelengths on telephony or tele graphy with a remotely operated control. Lack of space, of course, precludes the display of a full range of aerodrome sets, but the R.4 transmitter, which can be supplied either with two short-wave or one short- and one medium-wave range and an R.5 receiver, which is a highly sensitive short-wave eight-valve super- het. for long-distance use and arranged for R/T and W/T will be seen. This set will be shown with power supply unit. The latest Standard development in the way of aircraft direction-finders (the R.6) is also shown. It is normally worked with a rotatable loop, but alter natively a fixed loop may be used and the device arranged for "homing." Aural reception, incidentally, is not lost with this equipment when the loop is moved to the position when '' on course" signals are being received. The sales agent of Standards for Great Britain is Smith's Aircraft Instruments, whose D.H. Dragon (the "Flying Show room") will also be on view. Makers' Standard Telephones and Cables, Ltd., Connaught House, Aldwych, London, W.C.2. Aerodrome Equipment and Lighting CHANCE BROTHERS (Stand 18).— Probably no firm is better known for its pioneer work in connection with the special lighting needs of aerodrome owners than Chance Bros. On their stand, this firm will show a representa tive selection of airport lighting ap paratus, both in model and full-size form. This equipment will include flood lights, boundary lights and obstruction rights. Owing to the very nature of the apparatus, it is naturally impossible to do justice to it in a small stand, which is designed to give a general indication of the range of equipment manufactured. Chance Bros, have received contracts from the British Air Ministry, the Indian Government and many foreign govern ments, and at least five big aerodromes in this country have been wholly or partially equipped by them. Makers : Chance Brothers and Co., Ltd., Smeth- wick, Birmingham.
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