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Aviation History
1924
1924 - 0383.PDF
ailerons are hinged to auxiliary spars behind the rear main spars. The fuselage is of rectangular-section girder construction. The forward or engine portion is built up of four solid ash longerons, struts and cross members and four transverse members forming the engine housing ; the front and rear transverse members are of sheet steel, and the intermediary ones of plywood. The central part of the fuselage, con taining the pilots and observer's posts, is formed by con tinuations of the ash longerons, but in this case the latter are channeled and the sides of the fuselage strengthened with ribs. The elevators and rudder are balanced by means of triangular extensions, for which portions cf the tail plane and vertical fin respectively are cut away. Dual control is fitted. The landing gear is of the Y-type, the \"s being built up of glued wood laminations. The lower extremities of the V's are connected by two cross members, one in front and one behind the steel axle, over which is a fairing. Front and rear chassis members are cross-braced by steel wires, as are the two cross members. The tail skid is of asb, and is pivoted. Cooling is by two Lamblin radiators, mounted on the landing chassis. The Henry Potez type XV Observation Biplane, fitted with a 370 h.p. Lorraine-Dietrich engine. plywood. The remainder of the fuselage, which is fabric covered, is built up of spruce. The usual steel wire bracing is emnloved in the fuselage. Two ash bearers, mounted on the-four transverse frames referred to above, carry the engine. Provision is made for adjusting the incidence of the hori zontal stabilising surface, but not during flight. It is of rectangular plan-form, built up of spruce spars and plywood The main dimensions, etc., are :—Span. 12.700 m. (41 ft. 11 ins.) ; o.a. length. 8-640 m. (28 ft. 6'ins.) ; wing area, 45 sq. m. (481.5 sq. ft.) ; weight, empty, 1,250 kgs. (2,7561b.) ; useful load, including fuel, 615 kgs. (1,356 lb.) ; total weight, 1,865 kgs. (4,112 lb.) : wing loading, 41 kgs./sq. m. (8-4 lb./ sq. ft.) ; power loading, 4-650 kgs. (10-25 10.)/h.p. ; speed, 200_km.p.h. (124 m.p.h.) ; ceiling, 6,200 m. (20,400 ft). THE GERMAN EXHIBITS ALBATROSWERKE, BERLIN-JOHANNISTHAL LAST year the German pioneer firm, the Albatroswerke, of Berlin-Johannisthal, was prevented from exhibiting at Gothenburg, although stand space had been taken. This year, fortunately, it was found possible to exhibit two machines at Prague, while a third was flown from Johannisthal to the Kbely aerodrome at Prague, and there gave demon stration and passenger flights during the exhibition. This machine was the commercial monoplane, the "L.58," which was described and illustrated in FLIGHT of October 12, 1922, while general arrangement drawings were published in our issue of December 9, 1920. The "L.58" is a high-wing The Albatros " L. 59 60 " is produced in two slightly differing types. The " L. 59" is a single-seater with five- cylinder Siemens radial engine, while the " L. 60 " is a two-seater and is fitted with 7-cylinder Siemens radial. The type exhibited was the "L. 60." 383
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