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Aviation History
1919
1919 - 1154.PDF
AUGUST 28, 19I<» E ifi E E E E a E E El a a E E E E a E S The Fokker Stand t On the left may be seen the port wing of a parasol mono plane, while in the centre is a sporting two- seater, shown with the port wings folded for transport. In the background, on the right, is a Fok ker two - seater biplane, similar to the German Fok ker type D.VII. "Flight" Copyrigfcfc HE00 E E H E engine is a water-cooled one, but as to make we were unable to obtain any information from the gentleman in charge of the stand. The front of the body was hermetically sealed so as to make it impossible to discover the contents—if any— of the engine housing, and the young man in charge naively informed us that he did not know with what engine the machine was fitted ! This may be taken to mean that either no engine was fitted, or that, if there was one fitted, it was a German one. THE SPYKER MACHINES. Of the aeroplanes of Dutch design and construction the two Spyker biplanes exhibited are perhaps the neatest. There is about both types a certain cleanliness of outline which is very pleasing to the eye. Yet as regards their design and construction everything is simple and along common-sense lines. One of the Spyker machines is a little single-seater sporting biplane, fitted with a 130 h.p. Spyker-Clerget engine. It follows standard practice as regards its general lay-out, having a single pair of inter-plane struts on each side. The wing bracing is in the form of fiat steel bands, not of the alleged stream-line section now used so extensively on our own machines, but truly plain fiat steel bands, fitted in duplicate side by side and in surface contact with one another. The terminals for these flat steel strips are extremely neat, and would appear to be a good deal less expensive to make than are our own neat but super-refined trunnion terminals for R.A.F. wires. The plane struts are of wood, stream-line section. Upper and lower planes are of equal span, and both are fitted with ailerons. The fuselage is of the monocoque form of construction, and would appear to be of very good shape as regards air resistance. The controls are of standard type, the stick terminating at the top in a very convenient handle. A very complete set of instruments is carried on a neat instrument board in front of the controls. The top plane centre section is provided with windows so as to improve the pilot's view in an upward direction. A simple type of Vee undercarriage, having wood struts, is fitted, the axle being divided in the centre. In its show paint—the planes are yellow and the fuselage blue—the little Spyker scout looks extremely well, and has, we believe, a very good performance. The second machine exhibited on the Spyker stand is a two-seater tractor, designed for school work. It is fitted with an 80-90 h.p. Thulin Swedish) engine of the Le Rhone type. This machine, being intended for instruction work and carrying two, is somewhat larger than the single-seater, but is also a fairly small, and very pleasing, aeroplane. It has two pairs of struts aside, and the same common-sense design is noticeable in all its details. This machine has not, however, a monocoque fuselage, but one of the usual wood girder type, with struts and cross members of T section, and wire bracing. As shown, the rear part of the fuselage was uncovered so as to show the internal construction and workmanship, both of which were very good. In this machine the lift bracing is in the form of standard cables, and the manner of attaching the lower plane to the fuselage is very neat, being effected by a form of union, not unlike that employed on some of the earlier German Albatros biplanes. The undercarriage is of the Vee type, with very wide track, and the lower apices of the two Vees are arranged in a manner not unlike that of some of the Sopwith undercarriages. That is to say, there is a cross piece some little distance up, and a plate with guides for the axle. Needless to say, as the machine is intended for instruction it is fitted with dual control. In view of the comparatively low power the machine has a good performance, and we are informed that she has been looped, which is not bad for a two-seater with only 80 h.p. The Spyker firm also shows, in addition to one of their cars, a rotary engine of the Clerget type, but built by Spykers, which is rated at 130 h.p. Judging from an external examina tion it is a very fine job, the engine being well finished and a a a a a a a a a E a a a a a a Van Berkels Patent : On this stand is shown a twin-float sea plane without inter-plane wing bracing, the lift being taken by tubes from the floats. This machine was shown minus engine. M flight" Copyright. a a a a a a a a a a 1156
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