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Aviation History
1919
1919 - 1334.PDF
As will be seen from our illustrations, this machine is a monoplane of the parasol type. The fuselage is of good streamline shape, comparatively deep in section. It is of monocoque construction, built up of three layers of cedar, and weighs, as it comes off the mould, 58 lbs. A portion of the fuselage, on the port side of the cockpit, is cut away to give access to the latter, thus avoiding the necessity of the pilot climbing over the top of the fuselage, a considerable improvement on the hitherto awkward method of OCTOBER 9, 1919 changeable from right to left, and are further inter changeable with the rudder. The triangular fin is slightly offset to overcome the torque. The landing chassis is of the V type, the Vs being of steel tube and interchangeable, whilst large- diameter wheels are fitted to provide easy rolling. The axle is sprung by means of the usual elastic cord. The tail skid consists of a three-leaf spring. The power plant is a two-cylinder horizontally opposed air-cooled Cato aircraft engine, developing Wing section of the Cato sporting monoplane " embarkation."' The bottom of the fuselage being 22 ins. from the ground, it is possible for the pilot to step into the cockpit as easily as one would step into a car. The pilot's seat is mounted 16 ins. from the floor of the fuselage. A wind screen is rendered unnecessary owing to the shape of the top of the fuselage at the rear of the engine. A neat stick control is installed, and the rudder bar has three adjustments—short, medium and long. The throttle control is located on the starboard side of the cockpit. The construction of the wings follows more or less standard practice. The wing spars are of I-section, and the wing-bracing strut attachments are held on by four bolts clamping the spar through maple blocks. The wings are built in two halves, and are braced by four main struts anchored at their lower ends to the sides of the fuselage. These main struts are interchangeable from right to left and from front to rear. The wings are mounted some 14 ins. above the fuselage on central cabanes, and are given a backsweep of 50 and a dihedral angle of 20; the angle of incidence is 40. The inner ends of the ailerons are set back at an angle of 40 in order to render them more effective at very low speeds. These ailerons are interchangeable. The tail plane is of the divided type, of symmetrical section, and is permanently mounted some 6 ins. below the line of thrust. Each half of the tail plane is interchangeable. The elevators are also inter- H H Meteorology in the Empire AT the conference held in London recently Lieut.-Col. D. C. Bates (New Zealand) proposed " that the conference of representative meteorologists of the British Empire assembled together for the first time should agree to continue as an association for the exchange of views from time to time upon scientific matters concerning the achievements, requirements and organisation of their services." This was carried un animously. Sir Napier Shaw was elected the first president; members were invited to submit rules for the guidance and acceptance of the Association. The conference was beneficial in bringing together the 72 h.p. at 1,825 r.p.m. It is mounted on a steel plate riveted to the front end of the fuselage. It is well protected by an aluminium hood, the only part exposed being the two air-cooled cylinder heads, and the carburettor intake. The engine drives direct a tractor screw of 7 ft. 2 ins. diameter by 4-38 ft. pitch. The petrol tank is located on the root of the right wing, and has a capacity of 12 gallons, which is sufficient fuel for about three hours' endurance. The oil tank is also situated in this position. Both petrol and oil are supplied to the engine by gravity. The general specifications of the Cato sporting monoplane are as follows :— Overall span Overall length Chord Sweepback Dihedral Angle of incidence Total area of main plant- Area of ailerons Area of tail plane Area of fin Area of elevators Area of rudder Weight, empty Useful load Weight fully loaded . . Loading per sq. ft. . . Loading per horse-power Speed range Climb in 10 minutes .. Ceiling.. Endurance at high speed 28 ft. 111 ins. 20 ft. 10 ins. . 7 ft. • 5° . 2° • 4° . 186 sq. ft. . 23-8 sq. ft. . 15-5 sq.ft. . 6-9 sq. ft. . 13-8 sq.ft. 6-9 sq. ft. 474-26 lbs. . 253 lbs. 727*26 lbs. • 3-9 IO'I . 25-68 m.p.h. . 4,500 ft. 12,000 ft. 3 hours. B H various meteorological organisations of the Empire, and it is confidently anticipated that as a result complete co-opera tion will be maintained between Dominions, Crown Colonies and the Mother Country. It is unnecessary to point out the need for this co-operation in view of the development of the great aerial routes of the Empire. Air Services for China and Siam LIEUT. E. C. RICON, who served in the French Army Air Service in China, is organising in America a scheme which aims at connecting up such points as Shanghai, Hong Kong, Hailfung, Canton, Tonkin and Macao by aerial services for the conveyance of passengers and light freight. 336
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