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Aviation History
1933
1933 - 1021.PDF
FLIGHT, NOVEMBER 16, 1933 During my flight 1 passed through 22 countries in all. I should like most of all to point out that on a journey of this nature, any pilot, no matter how many languages he knows, will always meet with many difficulties in connection with customs and other officials. In eleven countries my camera and my gun were sealed, and once I was not even permitted to transport them with me in my plane; instead they were sent by train to my next landing place. It was also most annoying that in Istanbul my diary and some of my European flying permissions were not returned to me, which on my way home was rather distressing. It seems to me that journeys of this nature are unnecessarily impeded by obstacles of this kind, which constitute a hindrance for the development of aviation as a whole. I think there is scope for the Inter national Aviation League to improve these things. Considering the very bad weather conditions—often the situation had been so critical that I had feared the worst— I am very thankful indeed that I was able to fulfil the journey. In this connection I must state that I am indebted for the successful accomplishment of the journey most of all to the excellent Siddeley motor, which ran regularly all the time without even the slightest disturb ance, and also to the good piloting qualities of my plane, and further to the well-organised fuel supply and other service of the Shell company, which all over the world is capable of supplying the pilot with anything he may require.'' Capt. Bremer arrived from New York (by boat) at Bremerhaven on July 28, and flying to London and Paris on August 1, arrived back in Helsingfors on August 13, having flown via Dessau and Malmo. m ss INTRODUCING THE C.30 P. Mr. de la Cierva demonstrates his latest type R EPRESENTATIVES of the Press, and others interested in the subject, were the guests of the Cierva Autogiro Company at a demonstration at Hanworth last Wednesday of the production model of the Autogiro type C.30. Mr. de la Cierva himself carried out the demonstrations, which included fast and slow flying, landing without run, and take-off with very short run. The total absence of wind made the demon strations all the more convincing, since the still-air per formance of the machine was strikingly brought out. We illustrated the new machine in last week's issue of FLIGHT, and it is only necessary to add here that with the fitting of the 7-cyl. Armstrong-Siddeley " Genet Major " engine, and various improvements in the machine itself, the performance of the C.30 P has increased to a remarkable degree. The company quotes a top speed of 120 m.p.h. and a cruising speed of 100 m.p.h. We believe both figures to be very conservative. Actually the machine appeared a good deal faster. The short take-off and the steep descent followed by a landing without any run indi cated that the improvement in the performance at the upper end of the scale has not spoiled the characteristics at low speed. It would be interesting to see what differ ence a variable-pitch propeller would make. A speed range of 8:1 makes considerable demands on a fixed-pitch air screw. The fundamental aerodynamic problems of the autogiro having been solved, the popularity of the type will depend largely on two factors—cost and maintenance. First cost is largely a question of quantity production. Maintenance will depend a great deal on the quality of such items as the rotor head with its associated controls, and on the undercarriage. It is reassuring to know that the rotor head, etc., of this machine was made by the Mollart Engin eering Company, and that the large centrifugal stresses are taken care of bv Hoffmann bearings. A machine which descends almost vertically calls for good shock-absorbing qualities, and it is significant that Mr. de la Cierva chose Dowty " legs." The fuselage portion of the machine was built in the Heston workshops, which added their valuable share in this co-operative effort. The general result is good, and the C.30 P. can now be considered ready for the market. LOOK PLEASANT, PLEASE " : Mr. Juan de la Cierva and the C.30 P pose for the cameramen at Hanworth. (FLIGHT Photo.) 1157
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