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Aviation History
1946
1946 - 2115.PDF
OCTOBER 24TH, 1946. FLIGHT 441 SAILPLANE COMPETITION Miscellaneous It is desirable that the span should not exceed 60ft. Whendismantled no part should exceed approx. 30ft in length. The possibility of extensive operation from runways shouldbe borne in mind. FORM OF DESIGN SUBMISSION In order to facilitate the work of judging the designs, someuniformity between all the entries is- desirable. In general, the material should be such that it could behanded over to a Draughting Office for detailing with a mini- mum of subsequent supervision on the part of the designer.As a rough guide, the following is suggested: — (1) Designer's Remarks The designer should describe special or unusual featuresof the design, together with their construction, function and purpose. k (2) DrawingsJ (a) Three-view G.A drawing showing principal dinvsnsions. (b) G.A. of wing showing location and dimensions of majorstructural components. (c) G.A. of fuselage showing location and dimensions ofmajor structural components. (d) Drawing(s) or layout(s) showing location of controls,control runs, and installation of equipment. (These need not be dimensioned.) (e) Drawing(s) or sketch(es) of wing-fuselage fix.(f) Drawing(s) and/or sketch(es) of special or unusual fea- tures, together with such detailed description as maybe necessary. N.B.—Original drawing'- and documents should not besubmitted, as no guarantee can be given as to their safe return. (3) Type Record This should contain the following: — (a) Aerodynamic Data Sheet (loading, wing sections, etc.).(b) Detailed weight and C. of G. .tsthnatt-. (c) Detailed performance estimate, including polar curveand curves of sink and L/D against speed. (d) An estimate of longitudinal stability.(e) Preliminary stress calculations, showing loads on main members and their reserve factors.(f) An estimate of wing torsional stiffness. / N.B.—References to sources of information should bequoted. Gas Turbine Committee Formed in 1941 •* 21st Meeting this WeekM UCH of the immense progress achieved in this country in Gas Turbine development can be ascribed to collaborative work and team spirit among the many technicians engaged. In the autumn of 1941 a Gas Turbine Collaboration Committee was formed to assist both the Ministry of Aircraft Production and the industry in all phases of aircraft gas turbine work. The objects of the Committee were:'— (1) To avoid duplication of effort. (2) To pool ideas. (3) To pool testing facilities. (4) To pool experience. (5) To relate power units to the most appropriate airframes. These terms of reference have been modified with the passage of time and the work of the Committee now covers all problems in the fields of research, development or pro- duction. Discussions are arranged at three-monthly inter- vals. The first Chairman, Dr. Roxbee Cox, continued in office until April, 1944, when he left the Ministry to become Chairman of Power Jets (Research and Development) Ltd. At the suggestion of The Rover Co. (one of the foundation members), the second and third meetings were held at their factory at Solihull, Birmingham, and this idea appealed to the members so much that the firms decided to act as hosts to the Committee in turn. This meant that all members of the Committee were able to see all phases of the work proceeding at any particular factory and useful contacts were made which led to interchange of views This week the Committee holds its 21st meeting when the hosts will be D. Napier and Son, Ltd. As the work of the Committee increased, specialist sub- committees or panels were formed as under; and they meet five or six times each year: — (a) The Combustion Panel under the chairmanship of Dr. C. H. Lander. (b) The Mechanical Panel under the chairmanship of Dr. O. A. Saunders. (c) The Aero-Dynamics Panel under the chairmanship of Mr. Mackinnon-VVood. * (d) The High Temperature Materials Panel under the chair- manship of Group Captain Watt. Each Chairman reports to the main Committee, and their function is to advise the Ministry through the official members of the Panels on the programmes of work which the Industry and the Experimental Establishments would like to see undertaken. Since the original meeting in 1941, the representation has steadily increased until to-day all the regular Aero- Engine Firms are represented. The original firms repre- sented were The Rover Co., de Havilland, Metropolitan Vickers Electrical Co. and Rolls-Royce, as well as H. R. Ricardo and Joseph Lucas, Ltd., who were there as specialists and advisers. In July, 1944, Group Captain G. E. Watt, Deputy Director of Turbine Engines, became Chairman but will relinquish the office on his departure overseas at the end of October. Dr. Roxbee Cox is to resume the chairmanship. II Members of the British Gas Turbine Collaboration Committee on the occasion of their 20th meeting in June. The two officers in the centre are Air Marshal Sir Alec Coryton and Group Capt. G. E. Watt (chairman). Immediately to the left areA G Elliott and C. C. Walker, and on the right F. B. Halford, H. Roxbee Cox and Capt. M. Luby, R.N. 5" A
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