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The combination with an engine cowl having a front entrance opening, of a disc disposed therein, swinging links guiding the rim of said disc for approximately helical movement, and control means for effecting said movement.
THE usual formul for deflexions and bending moments in curved beams, as given in standard textbooks e.g., Refs. 1 and 2, are not easily applied to the relatively flimsy closed rings used as stiffeners in contempory aircraft design. Two kinds of difficulty arise one of computation, the other of...
THE general use of monocoque structures for the wings and fuselages of modern aeroplanes has undoubtedly given rise to a crop of problems in stress distribution which are still far from a complete solution. Theoretical solutions are nearly always confined to simplified structures that are seldom...
THE annual production of nickel is small in comparison with that of the common industrial metals, iron and steel, copper, lead, zinc and aluminium, but it is a metal of first class engineering importance because it is mainly used in the form of relatively small additions which have a pronounced...
THE increase of the specific power of aeroengines in the last few years has been obtained in three ways, namely by increasing the engine speed and, more particularly, by raising the compression ratio and by adopting supercharging.
The blades of an airscrew or spars and similar hollow structural parts of aircraft are formed of two shell sections of wood lamin joined together with a moistureresisting adhesive, each shell section forming in the case of a blade substantially one face of the blade and being made by assembling...
THE rapid growth and development of the aircraft industry has necessitated prompt decision and action in handling the many problems in connexion with the erection and equipment of aerodrome buildings, hangars, workshops and factories. In the urgency of providing the industry with all its varied...
THE following list of contracts placed by the Air Ministry during April lias been extracted from the May issue of The Ministry of Labour Gazette
WE are glad to have the opportunity of publishing DR. PUGSLEY'S article on structural research. Things have been moving so rapidly in aviation of late and changes in design and in the materials used in the construction of aeroplanes taking place so quickly that designers have had to deal with...
ONE of the objections attendant on the use of needle roller bearings, as illustrated in Fig. 1, has been overcome by the introduction of needle rollers having trunnion instead of spherical ends. In the type shown in Fig. 1, without adding considerably to the cost of the bearing, it is only with...
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