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Aviation History
1913
1913 - 0734.PDF
The 100 b.p. Avro hydro-biplane in flight. of detaching from the body itself, detach from a fixed inner (-(111116 having a span of 9 ft., so that the struts at its extremities are immediately above the floats. These latter are of the pure hydroplane type with 2 steps, and are 14 ft. long x 2 ft. 6 ins. wide, with their inner edges 6 ft. 6 ins. apart. The total buoyancy when submerged is 4,400 lbs., or twice the weight of the machine. The chassis struts are all of steel bound with varnished fabric, and are 14 in number, 7 each side, of which 6 support the cellule from the float, whilst the 7th is carried direct to the engine bearers on the fuselage. The body itself is rectangular in cross-section with a horizontal top and curved bottom. It tapers at the rear to a vertical rudder post which carries the rudder, and with it a small tail float, which moves with the rudder for steering purposes. The elevators and empennage are of the standard Avro size. The pilot's seat is behind the passenger's, the latter being placed on the centre of gravity of the machine. The engine is enclosed in the usual housing, with a wind-shield for the pilot. The tractor-screw is an Avro with brass-capped leading edge at the tips, having a diameter of 8 -o ins. and a pitch of 6 ft. The control is by wheel and rudder bar, and is of the usual type. The weight of the whole machine with full allowance of fuel is just under one ton, and the surface of the main planes being 567 sq. ft. gives a loading of rather under 4 lbs. per sq. ft., and 22 lbs. per h.p. This means, of course, that the machine is not a very high speed one, its estimated velocity being about 48 to 50 miles per hour. This slow speed was adopted as being more likely to be successful, considering the experimental state of our present-day knowledge of hydroplane floats. It is interesting to know that this machine is already purchased by a private owner, and that several are already on order for the Admiralty. ® ® ® ® " Flight" CopyrL,..,. VISIT OF THE SOCIETY OF ARCHITECTS TO HENDON ON SATURDAY WEEK-On the right the hour lot tea, a view of visitors watching the flying at Hendon from the new pavilion. 760
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