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Aviation History
1912
1912 - 0006.PDF
the engine is covered in by a neat housing of sheet steel. Further improvements had also been made in the bodywork itself, a miniature The 100-h.p, Chenu-engined Breguet biplane. side-entrance door and light steel ladder being provided to facilitate ingress and egress. Principal dimensions :— Length ... ... 30 ft. Weight ... 1,430 lbs. Span 45 ,, Speed ... 55 m.p.h. Area 363 sq. ft. Motor 75-h.p. Chenu. Price ^1,400. De Poix et de Roig. THIS two-seater monoplane presents little difference from standard practice, and consequently a few words will suffice to describe it. Its fuselage, 30 ft. in length, is a skiff-like structure much after the same idea as that originated by Hanriot. The motor, which is mounted in front of the body, is a 100-h.p. water-cooled Clerget, and drives a large diameter Rapid propeller. Its landing chassis is of the customary A-type wheel and skid class, having a track of just over six feet. Balancing is carried out by means 01 warping the main wings, which latter have a span of 37 feet, and this action is controlled from the steering-wheel that is mounted in an exactly similar fashion to that of the Deperdussin. The tail unit greater stability by the cutting down of as much head resistance as possible. The body itself is of excellent stream-line form, the fabric covering, which extends right from end to end, being supported on circular wooden hoops, which are applied over the fuselage proper of ordinary box-girder construction. The main peculiarity about the machine is that the propeller, a Regy Freres, is disposed at the extreme rear end of the main body, and is driven by means of a tubular steel shift by a Gnome engine of 50-h.p., situated just to the rear of the pilot. This shaft is not universally jointed, but rigid from motor to propeller. Very little camber and very little angle of incidence is evident in the wings, which are of an approximate elliptical plan form, and which are up-turned at the tips in order to endow the machine with a modicum of natural stability. It is interesting to note that no warping of the wings or any other method of maintaining lateral balance, other than by the inherent effect of the up-turned tips, is provided for, and this fact almost leads one to believe that Paulhan had in his mind visions of litigation with the Wright brothers, on which, by the way, he is at present engaged in the States. The tail surfaces consist of a horizontal flat plane, to the rear edge of which is hinged a pair of flaps, one on each side of the main body, which perform the function of elevators, while OC Gc*Cr -*o~ v^t." The de Poix-de Rolg monoplane, recalling, in a general way, Hanriot practice, is almost identical with that of the Hanriot with which we are all familiar, a flat plane acting as a stabiliser, while to its rear edge are hinged two small planes serving as elevators. Goupy. ALTHOUGH in its general appearance the Goupy biplane, as exhibited at the Salon, differs little from the machine with which readers of FLIGHT are familiar, through its appearance at the last Doncaster meeting, one or two important changes have been made, with the result that it now no longer bears such a close resemblance to the Bleriot. Besides adopting a monoplane tail in place of the biplane unit previously employed, the operation of the controls is no longer brought about from a single vertical column, but has, in this latest machine, been divided, the steering to right and left being operated from a pivoted foot-lever. The essentially Bleriot-type of landing-gear has also disappeared in favour of a Sommer-type wheel- and-skid combination. Principal dimensions :— Length 23 ft. Span 3 ft. Area 242 sq. ft. Price Weight Speed Engine ... £1,120. .. 550 lbs. . SS m.p.h. 50-h.p. Gnome Les Fils de Regy Freres. THE most prominent exhibit on this stand was the aero torpedo of Paulhan and Tatin. This interesting machine, of which photo graphs have appeared from time to time in FLIGHT, is a sincere attempt on the part of the designers to gain greater speed and THE AERO TORPEDO OF PAULHAN AND TATIN —With this monoplane speeds up to 140 klloms. per hour have been obtained. steering to the right and left is brought about by a vertical-balanced rudder mounted above the horizontal surface. Protection is afforded against damage to the propeller by a very high tail-skid. The landing chassis is a very unique conception, and while being extremely strong and simple has the extra advantage of presenting little resistance to forward advance. The common axle connecting the two pneumatic-tyred disc wheels is rigidly attached to two roughly semi-circular sweeps of ash. These sweeps are hinged to the main body at their forward ends, and at their rear ends are con nected by a piece of wood which in turn is strapped down to a PAULHRN TATIN The aero torpedo, the result of the collaboration o£ Messrs. Victor Tatin and Louis Paulhan. reinforced fuselage cross-member with rubber cord. In this manner the shock-absorbing device is arranged in the interior of the fuselage, and in addition to resistance being reduced on this account, the system lends itself to extreme neatness and clearness of design. As evidence of the advantages which are to be gained by the reduction of head resistance, it is interesting to mention that speeds of 88 miles per hour have been attained, presumably in still air, by this monoplane, and this with an engine of only 50 h.p.
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