The Shop Window1950 Aircraft Engineering and Aerospace Technology
doi: 10.1108/eb031949
ONCE more it falls to our lot to set down our impressions of an S.B.A.C. Display, the reviewing of which we have entrusted again to Mr Huls who, readers will remember, first essayed the task for us last year. We are thus maintaining the practice which we instituted in 1948 of getting a technician in some other country to view each year the products of the British Industry, so as to obtain an independent outlook free from the national bias which would be inevitable if the event were dealt with by an Englishman.
Farnborough 1950Huls, L.L.Th.
1950 Aircraft Engineering and Aerospace Technology
doi: 10.1108/eb031950
THE Eleventh S.B.A.C. Display, held at Farnborough, September 5 to 10, has marked another year of sustained progress in the British Aircraft Industry. Although the advances since the previous display appeared to be less spectacular than in the preceding years the achievements of the industry, judged by the successful development of both civil and military aircraft which are eminently suited for their tasks, are no less impressive. On the contrary, as the development of an aircraft after its first flight quite often is a more difficult task than the design and construction of the prototype, the impressive display of aircraft types ready to go into service in the near future is an even more convincing proof of the capabilities of the British aircraft industry than any display of spectacular new prototypes could have been.
Sweepback and Wing TaperFalkner, V.M.
1950 Aircraft Engineering and Aerospace Technology
doi: 10.1108/eb031952
1. IN R. & M. 2596 and another report, the I latter concerned mainly with compressibility effects, the writer has considered the aerodynamic loading due to incidence of a number of wings of varying aspect ratio and sweepback. The information given in these reports was obtained by the use of a lattice of vortices for the computation of downwash and by the subsequent determination of the constants in the equation representing the vortex sheet. It is well known that the potential solutions obtained by this simplified representation are not necessarily of more than moderate accuracy when applied to problems in which wing thickness and viscosity are present, and those published have not been carried to a degree sufficient to give accurate detailed pressure distribution in the region of a discontinuity. It has, however, been shown in a later report on the measurement of pressure distribution at the surface of a sweptback wing that the accuracy as regards spanwise load grading and local aerodynamic centre is surprisingly good and it has been thought well worth while to extend the range of information provided in the above reports before proceeding to the more complex task of computing the detailed pressure distribution at the surface of a wing with allowance for viscosity.
A K.L.M. Servicing Innovation1950 Aircraft Engineering and Aerospace Technology
doi: 10.1108/eb031953
THE general purpose of the test trolley is to replace the operating and control mechanics in the cockpit so that each engine can be tested before being mounted in position on the aircraft. The advantage as compared with the method previously employed is that if any auxiliary components are not working properly or are wrongly connected they can be found and adjusted before the engine is installed this greatly reduces the risk of having to waste time on dismantling the engine again and makes sure that a properly functioning engine unit is installed.
Drawing for Reproduction1950 Aircraft Engineering and Aerospace Technology
doi: 10.1108/eb031954
WE recently received a pamphlet entitled Mechanical Drawings for Reproduction in Printed Matter, that had so obviously been based upon the very troubles we frequently meet in the illustrations to contributed articles that we are reproducing it in full here through the courtesy of its publisherswho are specialists in industrial publicityRowlinsonBroughton, Royal Buildings, 2 Mosley Street, Manchester, 2. We commend the precepts to wouldbe contributors and also to all those, unused to drawing for reproduction in the normal course of events, who are called upon to illustrate handbooks or brochures. Some copies of the original pamphlet are still available and can be had on application to Messrs RowlinsonBroughton. Here follows the text of the pamphlet.
Production Engineering, Administration and ManagementConnolly, J.V.
1950 Aircraft Engineering and Aerospace Technology
doi: 10.1108/eb031955
6.51 Work Measurement is sometimes used as a new and more popular term for time study. In this chapter it will be used to cover a wider field, which, while it includes time study, will have a considerably broader meaning. Productivity, both national and that of the individual factory and shop, methods study and motion study, all have the right and an equal right to be considered under the heading of Work Measurement, together with time study as commonly known and practised. Rate fixing, which is an immature form of time study, has also many of the elements which justify its inclusion under this heading, and some mention of Job Evaluation must be made. Fig. 16 is a general schematic diagram indicating where some of the abovementioned measurements lie in relation to one another. No serious attempt has been made in this diagram to indicate correct scales or proportions, but enough has been shown to indicate that the area to which time study can be applied is at the base of a complicated pyramid and that its influence is of the same order as that of a tributary to a main stream.
British Standard Specifications1950 Aircraft Engineering and Aerospace Technology
doi: 10.1108/eb031957
The procedure stipulated in this British Standard is for use in conjunction with certain L specifications in the scries of British Standards for aircraft materials, and is also applicable to other aircraft light alloys, where appropriate, such as those in the Ministry of Supply D.T.D. series. The following new British Standards related to L.101 are now available