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Aviation History
1923
1923 - 0031.PDF
JANUARY 18, 1923. useful load 1,150 kgs. (2,530 lbs.) ; total loaded weight 3,300 kgs. (7,280 lbs.) ; wing loading 45 -5 kgs. /sq. m. (9-4 lbs./ sq.ft.); power loading 6 kgs./h.p. (12-15 lbs./h.p.). Maximum speed, 160 km. (99 m.p.h.) ; slow speed, 85km. (52-7 m.p.h.). The second machine shown was a fleet spotter of unusual construction, at any rate as regards its fuselage. At the previ- ous Paris Aero Show, it may be remembered, a three-seater touring machine was exhibited in which the rear portion of the fuselage was formed by two long narrow panels of multi- El H 0 0 0 EJ El H El 0 0 0 0 0 El El 0 0 El El 0 0 0 0 0 0 struction is that in case of damage to a part an entire panel will have to be renewed. On the other hand, the construction is so absurdly cheap that this fact alone should entitle it to consideration. The panels are not glued up of solid sheets, cut out afterwards, but the various vertical and diagonal struts are joined to the longerons much in the same manner The Pierre Levasseur Torpedo 'Plane: Generally speaking, the design of this machine resembles that of the Blackburn " Swift." THE PIERRE LEVASSEUR NAVY TYPE : Diagram- matic sketch showing panel construction of the fuselage. ply wood. The fleet spotter may be said to be a development of' that machine as regards its fuselage construction which takes the form of four panels made up from a number of layers Of wood glued together and suitably triangulated so as to avoid the necessity for any wire bracing in the sides. The rear portion of the fuselage is formed by two panels, and the front portion, including the undercarriage vees, of another two, the structure being completed by half-a-dozen transverse struts with wire bracing. One objection to this form of con- THE PIERRE LEVASSEUR NAVY TYPE : Detail sketch showing method of multi-ply construction of the panels. in which the blades of a propeller are joined by overlapping the laminations. One of our sketches should make the principle clear. The various panels are joined together by large steel plates and bolts, and as the taper is everywhere straight, the cross bracing joining the two sides together is simplicity itself. The machine is to be covered with three-ply so as to make it watertight, as it is intended for use over the sea, although not fitted with floats. The engine mounting, carrying a THE LI ORE AND OLIVIER TWIN-FLOAT SEAPLANE : Note the peculiar attitude taken up by the folded wings, owing to the angularity of the strut on which the wings are hinged. The wing section is Gottingen 430. 31 .. , , D 2
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