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Aviation History
1915
1915 - 0878.PDF
JySHf) THE OTTO OF the German aeroplane constructors who have paid special attention to the development of the all-steel machine few have met with greater success than have the Otto works at Munich. In the accompanying illustra tions are shown two types of fuselages which are similar as regards construction, but differ in that one is designed for a stationary engine, whilst the other is of a slightly different form in front to take a rotary motor. One feature common to all Otto machines is the employment through out of seamless chrome nickel steel tubes for longerons and struts of the fuselage. The attachment of the struts to the longerons is by means of special steel clips, which grip the various members without piercing them, a form of construction which has the further advantage that it facilitates replacement in case of fracture. Attachment of the wings to the fuselage is by means of similar steel clips so designed that it is possible to NOVEMBER 12, 1915. BIPLANES. Wing spars as well as interplane struts are, like the fuselage, made of steel tubes, the struts, needless to say, being of streamline section, and bracing is effected by means of stranded steel cables. The engine, in the case of the stationary motor, is mounted on stout ash bearers supported from the longerons of the fuselage; while in the machine designed for a rotary engine the bearers are more or less of a similar type to that employed on British machines. Although being made of steel throughout, the Otto biplane is said to be lighter than one of the same size made of wood, and the factor of safety in the wings is stated by the makers to be 8. A chassis of the usual simple type found in the majority of German military machines is fitted, the material used being streamline steel tubes for the struts and a tubular axle slung by rubber bands. Quickly detachable steel TWO VIEWS OF THE OTTO ALL-STEEL FUSELAGES.-On the right, the nose of the body and chassis'of the machine fitted with a stationary engine, and on the left the nose of the biplane with a rotary motor. slide the wings a short distance along the longerons so that a heavier or lighter engine may be fitted and the balance of the machine preserved by shifting the wings slightly backwards and forwards. In addition to this adjust ment the angle of incidence can be altered to suit various purposes. In the machines shown both these adjust ments are carried out when erecting the machine, but, according to information available, later types will be fitted with the necessary levers for carrying out this operation while in the air, an improvement that has no doubt been rendered effective by this time. ® ® German Aircraft Attacks on Shipping. IN the " Wireless" news sent out from Berlin on Monday there was the following:— "The English steamer 'Cotterel' was fired at and bombarded by two German aeroplanes near the Noordhinder Lightship. The steamer was damaged." A Derelict German Balloon. INFORMATION was received in Amsterdam from Middelburg clips secure the chassis struts to the lower longerons of the fuselage, and the chassis can, like the wings, be moved slightly backwards and forwards to obtain perfect balance on the ground for engines of different weight. The older machines were fitted with 100 h.p. Mercedes engines, but in view of the exceptional facilities for changing over, it appears highly probable that the latest ones have engines of 150 h.p. or more, which, in con junction with the variable angle of incidence, should give a machine of more than ordinary utility. ® ® on Tuesday that a small German captive balloon had fallen to the ground near Biggekerke, in the province of Zeeland, and had been confiscated by the Dutch military authorities. An Aerial Torpedo Timer. IT is reported from New York that Mr. Hudson Maxim, who is a member of the U.S. Naval Advisory Board for inventions, has placed before the authorities a new device for timing the explosion of torpedoes released from aircraft. 878
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