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Aviation History
1929
1929 - 0983.PDF
FLIGHT, MAY 9, 1929 The aircraft are Junkers F.I3 and G.24 types, chosen as aresult of the satisfactory experience with these types on the Vienna-Venice-Rome line. This latter route over the Alpsis an exceptionally difficult one and the Transadriatica Com- panv are to be congratulated on the results achieved, parti-cularly during the past winter with its exceptionally severe weather. During the period December 1 to March 20 last, theTransadriatica Company's Junkers' machines on the Alpine route covered 127,650 kms., with 526 passengers and 11 tonsof mail and freight, the traffic being nearly double that of the same period in the previous year. The service was run toschedule without accident. Short " Calcutta " in America MR. OSWALD SHORT is at present in the United States,and news has just been received that he has arranged for the American rights to construct the Short " Calcutta "flying-boat to be granted to the Keystone Aircraft Corpora- tion of Bristol, Pennsylvania.Canadian Air Mail Items AN Order-in-Council has been issued at Ottawa estab-lishing an air mail service branch of the Post Office depart- ment, under a superintendent, whose function it will be toconsolidate previously established services and to supervise developments now in contemplation. The projected Canadianair mail developments for this year include several items that promise well for the future of air mail services in Canada.A route between Toronto and Buffalo, N.Y., to connect with the United States air mail services at the latter point,is under consideration. This service will provide Toronto and other centres in Ontario with fast communication withthe air mail routes in the United States, effecting substantial gains in time. Air mail services between Toronto and Wind-sor, and between Winnipeg and Calgary and Edmonton are proposed. The routes between Winnipeg and Calgary andWinnipeg and Edmonton were thoroughly tried out last December and proved to be quite practicable. It is expectedthat the Toronto-Buffalo service and the Tor on to-Windsor service will be in operation shortly. By early summer, theprairie services should be ready to start. The establishment of an air mail and later a passenger service between Vancouverand Calgary may result from a survey between the two cities being undertaken by Western Canada Airways, Ltd. Berlin-London Services BY an arrangement concluded between the DeutscheLufthansa and the Royal Dutch Air Lines an extra daily air service will be opened between Berlin and London on May 15with three-engine Fokkers. An aeroplane will leave Berlin at 2 p.m. and arrive in Rotterdam at 6.29, and in London at9. In the reverse direction the service will connect up with the night Harwich-Hook boat, the aeroplane leavingRotterdam at 9.30 and arriving in Berlin at 12.55. Air " Tramp " Arrives CONSIDERED to be one of the first of its kind, the air" tramp" arrived at Croydon Aerodrome on May 1, after flying through the night across Europe from Berlin, picking upfreight and mails at various points in Germany. The aero- plane will in future leave Berlin at 2 o'clock every morningand call at Hanover, Essen, Dusseldorf and Cologne, picking up mails and freight for London, where she is scheduled toarrive at 10.15. Mails posted in Germany up to a late hour each night will thus be delivered in London by noon thefollowing day. Bristol Aircraft in Mexican Wars THE Bristol Aeroplane Co., Ltd. inform us that sincethe outbreak of civil war in Mexico, " Bristol " aeroplanes, supplied some time ago to the Mexican Air Force by them,have taken an active part in the Government campaign. The machines are of the Bristol " Boarhound " and Bristol" Fighter" types. General Calles, Minister for War and former President of Mexico, has telegraphed to the Bristolrepresentative in Mexico stating " Bristol aeroplanes are giving magnificent service." Using one of the Bristol" Boarhound " machines, Colonel Sidar, of the Mexican Air Force, created a sensation by the capture, single-handed, ofmore than 2,000 rebels. Colonel Sidar located this large body of rebel troops and, flying low, dropped messages invitingtheir surrender. As a volley of rifle fire was the only response, Colonel Sidar dropped two or three bombs into their midst asa slight inducement to submit to reason, and also swept their ranks with machine-gun fire. A second appeal tosurrender was unavailing, so the Colonel again treated his adversaries to a dose of bombs. The second applicationproved effective and the airman had the satisfaction of con- ducting more than two thousand prisoners to his own lines. ARMSTRONG-SIDDELEY AERO ENGINES AT SWISS AERO SHOWT HE growing popularity of British aero engines on theContinent is indicated by the number of important airlines that are fitted with British equipment. Themore progressive British manufacturer is also alive to the opportunities for expanding his European business in theair by participating in the principal aero shows on the Continent. Thus Armstrong Siddeley Motors, Ltd., werefully represented at the Swiss Aero Show, which took Place at Geneva (from April 27 to May 5). The time was wellchosen and as Geneva is an excellent centre, the event assumed a really international appearance. The Armstrong Siddeley engines were exhibited on Stand ff°- 37 and comprised the 460-h.p., 14-cylinder "Jaguar,"the 225-h.p., 7-cylinder " Lynx," the 130-140-h.p., 5-cylinder Mongoose," and the 80-88-h.p., 5-cylinder " Genet."A1 I these engines are of the air-cooled radial type, an interest-mg point being that the cylinders, pistons and many other Parts of the three larger engines are identical, the differenceIn Power being obtained by varying the number of cylinders . sed; This is an important point, because it means that it isPossible for any organisation requiring full and varied inFmClrt for a number of different purposes to specialiseArmstrong Siddeley engines and thus economise in the form . °* sPare parts carried and the experience requiredmaintaining these engines. Thus fighter aircraft might engmed by " Jaguars," and training aircraft by " T ""- "Mongoose." The ' Lynx ' iss lan&e is completed by the 80-88-h.p. " Genet," which a 14 f. 11 ' designed for light aircraft, and by the " Leopard," devel mder enSme of 700-750-h.p., which has been speciallyortr ° *°r carrying very heavy loads such as torpedoes lijje °P^- This engine was not shown at the exhibition, but,the C -^rrn.strong Siddeley productions, is well-known on 3eapla>nilUent w-^ere it nas already been in service in Heinkel plied ^i ^^e " JaSuar " engine, which can also be sup-th Orou ,, reduction gearing or with a supercharger, is a 8"JV proved production which has created a wonderful record in the " Argosies " of Imperial Airways, by settingup a standard of 400 hours between overhauls, and entirely dispensing with the usual top overhauls. The " Lynx "engines are used on two of the most important Swiss airlines, on a new French airline, on the Dutch East India postalservice and in the fighting forces of a number of foreign governments. The " Mongoose," which is a lower powerededition of the " Lynx," is coming into general use for British training aircraft, while the " Genet " is attracting widespreadinterest on the Continent owing to the fact that it recently won the East Prussian Flying Competition on a BFW-Maeroplane, and was also used on the Fecher machine which set up a world speed class record in Germany. Technically, Armstrong Siddeley engines possess manyinteresting features, among which may be noted the patented method of securing the aluminium cylinder head to the steelcylinder barrel which provides a perfect gas-tight joint with good thermal contact, the extraordinarily simple, efficientand patented means adopted for holding the cylinders in the crankcase, the special system of assisting the distribution ofgas by means of a fan and, of course, the epicyclic reduction gearing and the supercharging equipment. The reductiongearing provides the smoothest possible running and allows the engine to develop more power because it can be run faster.The propellor runs slower and so develops greater efficiency. This type of gearing is available with the " Jaguar " and"Lynx," and is being used on the new " Jaguars," which are operating on the London-India airline. The super-charging equipment has been in service in the British Royal Air Force for several years and is recommendedfor engines required to give the best results at very high altitudes. It will be seen, therefore, that the range of ArmstrongSiddeley engines covers every field of flying and that by using these engines either singly, in pairs, or in triplicate, everypossible type of aeroplane, for land or sea service, can be powered by Armstrong Siddeley. 389
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