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7-1 AIRCRAFT ENGINEERING A tare 11, 1935 Instructions to Aeroplane Owners and Ground Engineers on Essential Modifications radio apparatus and may lead to sparking. No . 4 of the year 1935 (d) Bristol, on the first Friday in April, Ground engineers must pay particular atten Whenever diaphragm type fuel pumps are tion to such flexible bonding connections on (c) Glasgow, on the first Thursday in May, dismantled, a very close inspection of the aircraft carrying radio apparatus, and must diaphragms should be effected, and if signs ensure that such connections are intact before of deterioration are present the diaphragms Applications for licences should be made signing Daily Certificates of Safety for Flight. should be renewed. on C.A. Form 2B, which is obtainable on Suitable forms of connecting cables for this I t is undesirable to retain the diaphragms in request, and should be addressed to The purpose are shown in Air Ministry Specification use for excessively long periods; the working Secretary, Air Ministry (C.A.2), Adastral House, G.E.125, as follows:— life can vary with the conditions imposed on the Kingsway, London, W.C.2. Applications for "Flexibl e bonding leads are to consist of pump by aircraft installation, and the type of extensions to existing licences will also be dealt braided flexible copper conductors of approx fuel used. with at these boards, and such applications imately circular section made up in one of The engine constructor's recommendation should be made on C.A. Form 2D to the above the following ways:— regarding the life of the diaphragm should be address. When forwarding the application, the (i) A braided conductor composed of adhered to. In instances where no recom applicant should indicate the provincial centre 16/5/0·004 in., with a core consisting of mendation is made, the diaphragm should be which he wishes to attend for examination, if 105 strands of 0·0032 in. ; or. renewed at each complete engine overhaul. he is unable t o take the examination in London. (ii) A coreless braided conductor consisting When re-assembling the pump, care must be Application for examination at the centres of 18/4/0·0048 in. Each strand of the taken to ensure that the diaphragm is in the named at (c), (d) and (e) above can only be conductor shall be bare annealed copper fully extended position, when finally clamped accepted provided that the application, together wire of the stated diameter to British between the two halves of th e body ; otherwise, with the appropriate fees, is received 28 days Standard Specification No. 128. Single excessive loading will occur. It is also neces before the dates specified, and provided also strand s may be soldered, but no joints sary to ensure tha t the screws securing the two tha t the total number of applications received are allowed in the braided conductor." halves of the body are evenly tightened down is within the capacity of the board. Applicants February 11, 1935. in diametrically opposed sequence. whose applications are not accepted owing to Detailed instructions relevant to the various these provisions will be given the opportunity No . 7 of the year 1935 types of pump in use are available from the of early examination in London, or, alter The undermentioned amendment should be makers concerned. natively, of being placed on a waiting list for made to the Appendix to Notice to Aircraft the next board to be held in the place in Januar y 18, 1935. Owners and Ground Engineers No. 17 of the question. year 1934:— Cancellation Cierva Autogiro C.30P.—Delete the words No . 5 of the year 1935 Notice to Aircraft Owners and Ground "Soli d Tyre " in column (4) of the table, and Examination Boards will sit for the purpose Engineers No. 35 of the year 1934 is hereby insert the following particulars in the columns of examining applicants for ground engineers' cancelled. indicated: — licences a t the following places and times :— February 4, 1935. Column (4) : 4·00–3½ (a) London, weekly, on each Tuesday in ″ (8) : 416 April, May and June, 1935. No . 6 of the year 1935 ″ (9) : 27 (b) Croydon, on the second Friday in April, Flexible bonding connections joining fixed ″ (12) : 270 × 100 May and June, 1935. and movable parts are liable to failure in fatigue ″ (16) : 416 after intensive use. (c) Manchester, on the first Friday in June, ″ (17) : 27 1935. Such failures interfere with the operation of February 14, 1935. Air Ministry Contracts ton : Redpath Brown & Co., Ltd., Glasgow. The following list of contracts placed by the London, W.C.—Gauges: Fairey Aviation Flashing Lights, Holbeach Range: Gas Co., Ltd., Hayes, Middlesex.—Heads Jacking Air Ministry during January is extracted from Accumulator Co., Ltd., Brentford. Aerodrome Trestles : Ernest Lake, Ltd., Bishops Stort- the February issue of The Ministry of Labour Floodlights, Croydon L.T.A.: General Electric ford.—Hillman 20/70 Vehicles': Rootes, Gazette:— Co., Ltd., London, W.C. Maintenance of Land Ltd., London, W. — Humber Pullman Accumulators : Oldham & Son, Ltd., ing Grounds, Cramvell, Digby, Grantham and Limousine : Rootes, Ltd., London, W.— Manchester.—Aircraft: Sir W. G. Armstrong Wittering : Furnace Dried Glass Co., Ltd., Jacks , Lifting: Ernest Lake, Ltd., Bishops Grantham.—Cable : St. Helens Cable Co., Whitworth Aircraft Co., Ltd., Coventry.— Stortford.—Lockers : Walls, Ltd., Birming Ltd., Slough.—Cable and Boxes : Connolly's Aircraft and Spares: Fairey Aviation Co., ham.—Magnetos , Repair of : British Thom (Blackley) Ltd., Manchester.—Camera: W. Ltd., Hayes, Middlesex.—Aircraft Spares: son-Houston Co., Ltd., Coventry. — Masts , Vinten, Ltd., London, N.W.—Clothing, Elec Blackburn Aeroplane & Motor Co., Ltd., Spare s for: Bruntons (Musselburgh), Ltd., tricall y Heated : Dowsing Radiant Heat Co., Musselburgh; Dixon Corbitt, Ltd., Gateshead. Brough ; Bristol Aeroplane Co., Ltd., Bristol; Ltd., London, W.; Siebe, Gorman & Co., —Metal Polish : Fortune Co., Ltd., Preston.— Walter Kidde Co., Ltd., London, W. ; A. V. Roe & Co., Ltd., Manchester; Saunders-Roe, Ltd., London, S.E.—"Commer" Four- Optimete r and Comparator: Alfred Her Ltd., East Cowes.—Aircraft Spares and wheele r Vehicles : Rootes, Ltd., London, W. bert, Ltd., Coventry. — Remote Control Modifications : Vickers (Aviation), Ltd., — Engines , Aero, Development running: Equipment : Marconis W/ T Co., Ltd., Chelms D. Napier & Son, Ltd., London, W.—Engines, Weybridge.—Airscrews : Fairey Aviation ford. — Separator, Steam Driven: Rolls Aero , Research running : Bristol Aeroplane Co., Ltd., Hayes, Middlesex; Rolls Royce, Royce, Ltd., Derby.—Shirts: F. Lane, Ltd., Co., Ltd., Bristol.—Engines, Aero, Spares: Ltd., Derby.—Works and Building London, E.C.—Speaking Tube Equipment: Armstrong Siddeley Motors, Ltd., Coventry; Services : Alterations to Terminal Block, Siebe, Gorman & Co., Ltd., London, S.E.— Rolls Royce, Ltd., Derby.—Equipment Web : Storag e Racks, Components for: G. A. Croydon, L.T.A.: Pearce Bros., Bromley, Mills Equipment Co., Ltd., London, E.C.— Harvey Co. (London), Ltd., London, S.E.— Kent. "C " Type Sheds Structural Steel work, Catterick: Cleveland Bridge & Engineer Ethylen e Glycol: Imperial Chemical Indus Terminals : Rotax, Ltd., London, N.W.— ing Co., Ltd., Darlington. "C " Type Sheds tries, Ltd., London, W. — Fil m Pan Wheels , Aero, etc.: Dunlop Rubber Co., chromatic : Ilford, Ltd., Ilford; Kodak, Ltd., Structural Steelwork, Ternhill and Wadding- Ltd., Birmingham.
Aircraft Engineering and Aerospace Technology – Emerald Publishing
Published: Mar 1, 1935
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