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Aviation History
1921
1921 - 0056.PDF
JANUARY 27, 1921 THE SURRENDERED ZEPPELINS : The front car (right), side car (left) and rear car (centre), on the "L.64 panying internal views. All the girders, longitudinal and transverse, are of the usual triangular section and construc- tion. The transverse wire bracing, at the main frames only, is similar to that employed on the " L.33 " and on the " R.80 " described and illustrated in our issue for August 26 last. The straight-through bracing wire, extending from stem to stern along the axis of the hull, is still employed. This cable is divided up into units, one for each gas bag, which are coupled together outside the latter. Between every pair of gas bags is a ventilating shaft passing up from the catwalk to the top of the hull, for the purpose of carrying off any free gas that may be within the hull or catwalk. A gun platform is mounted on the top of the hull between 1 the first and second gas bags, a ladder being provided in the shaft at this point giving access to the platform. The gasbags themselves call for no special com- ment, a cord network on the inside of the hull framework protects them from the latter, and the usual automatic and manoeuvring valves are fitted. One of the accompanying illustrations, looking through the interior of the catwalk, gives a good idea of the arrangement of the water ballast bags—in the immediate foreground—and the petrol tanks ; these are located at convenient intervals along the catwalk. The " L.64 " has four cars, or gondolas, all of good stream- line shape. The forward, and largest, car is divided into two entirely separate compartments, the front one forming the main control cabin, and the rear one the engine room. The control cabin, which is quite roomy, is provided with large glass and " celluloid " windows extending round the front and sides. Right forward is the control wheel operating the rudders, and on the port side is the elevator control wheel. Immediately above the latter is a rack carrying the levers operating the various water ballast bags. On the starboard side are the engine control telegraphs to each engine car. Various other controls, and navigating instruments, etc., are also arranged in this quarter of the car, where a good-sized table is provided for the laying out of maps, etc. All the various control cables are led up from the car to the hull through large streamlined shafts formed on the two front suspension struts. The cables then pass along through the inside of the hull to their various stations. It is a truly TWO DETAILS OF THE CAR SUSPENSION ON "L.64 " : On the left is shown the attachment ofthe suspension cables and streamline struts forward of the stern, car, and the same, on the right, at the rear of the car. In this latter view the oil radiator is also shown.
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