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Aviation History
1910
1910 - 0771.PDF
SEPTEMBER 24, 1910. (/QCHt] The "Morning Post" national dirigible upon the occasion of its first journey at La Roche Guyon on September 14th. the same horizontal axis which is fitted to the under-frame below the centre of the balloon. By deflecting these planes the pilot can make the airship rise in a direction parallel to itself without throwing out ballast, and he can in the same way make it descend. Similar axes are fitted to the under-frame, both fore and aft, to carry like planes which allow the whole balloon to be inclined for the purpose of rising or descending. The trials will show the value of these pairs of horizontal rudders, and will decide whether it is advisable to keep both pairs or either of them. *"The fixed planes, which, like the movable planes, are built of steel tubes with canvas stretched over them, are both horizontal and vertical, and are arranged as follows : — 1. The tail fins (the papillons or empennage), vertical and hori zontal planes, shaped rather like the wings of a butterfly and fitted along the axes of the egg-shaped stern of the gas-bag. These fins prevent the airship from rocking and pitching or going forward in zig-zag fashion under the forward thrusting pressure of its engines, 2. The rigid girder-built under-frame immediately beneath the gas-bag, consisting of three articulated parts—the forepart, which is small, angular, and covered with canvas in the horizontal plane ; the central longest portion (80 metres or 262 ft. in length), rather narrow (3 metres or 9 ft. 10 ins. in breadth), 2 metres or 6 ft. 6| ins. in height, covered with canvas far its whole length in the horizontal plane, whereas vertically only the stern half is canvas-covered ; and finally the tail-piece, which is cruciform and shaped like the feathers of an arrow, canvas-covered both horizontally and vertically, and ending in the rudder. The articulated bow and stern extremities can only be adjusted with the balloon at rest, and are fixed during flight. This combination of planes ensures the horizontal and vertical NEARER VIEW OF THE CAR OF THE "MORNING POST" DIRIGIBLE.—20 passengers can be carried in this. The vessel is driven by two 4-cyL Panhard motors of 135-h.p. each, the two wooden propellers being •of 5 metres each. 769
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