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Aviation History
1948
1948 - 1453.PDF
SEPTEMBER O,TH, 1948 FI I G H T 293 approve policies for the next year's work. Other topics to bediscussed include charter operations by scheduled airlines, standardization ol airline practices, international conventionsaffecting air transport, insurance matters and the operation of the I.A.T.A. Clearing House in London. SWEDISH FORECAST A FORECAST based on traffic potential, population figuresand living standards has been prepared by one of the Scandinavian Airline System's planning experts. These figuresare said to offer a reliable estimate of future traffic under "normal conditions," and according to them A.B.A., theSwedish partner in S.A.S., which flew 62 million passenger miles in 1947. will cover 210 million passenger miles in 1955and 615 million passenger miles in 1965, To fly these passenger miles, the company will need, in 1955, ten four-engined50-seater aircraft and 20 twin-engined 25-seater aircraft, and in 1965 15 four-engined and 60 twin-engined aircraft of similarseating capacity. The Swedish Atlantic airport now under construction at Halmsjon will have to handle about 500 passen- gers per hour. It is interesting to note that the forecast .emphasizes the importance of. increased frequencies, rather than increased carrier capacity. SECOND AMBASSADOR TRIALS THE second Ambassador prototype flew for the first time onThursday evening, August 26th. 1948, from Christchurch. This aircraft will be flying at the higher all-up weight of pro-duction aircraft, and may be regarded as representative 61 those which will be used by B.E.A. It is complete with pres-surization and thermal de-icing equipment, but whereas the second prototype has Bristol Centaurus 630 series power plants",which were originally specified for the production aircraft, the latter will have the 660 series units with two-speed blowers anda higher take-off power. During static pressurization tests strain-gauge recordings were taken at various pressure differ-entials, and the leak rates checked while the aircraft was sub Tjected to torsional stresses. Operational trials of the equip- ment will be started- when normal flight tests have beencompleted. BREVITIES PAN AMERICAN AIRWAYS have introduced a dailyreduced-fare tourist service between San Juan and New York City. Douglas DC-4 aircraft will accommodate 63 pas-sengers instead of the usual 52. Fares on the tourist class will be 4.6 cents per mile. # • • The Guild of Air Pilots and Air Navigators is now respon-sible for awarding the Cumberbatch Trophy in addition to the Johnston Memorial Trophy announced in Flight, April 29th.The former is in respect of any act tending to increase reli- ability within British civil aviation and will probably be basedupon the number of hours flying without accident of any kind. # * • B.O.A.C. have changed over to Lodge sparking plugs and Dunlop tyres for their six Constellations. It is estimated that the use of English designed and manufactured plugs will save $18,500 a year and the dollar saving on tyres will be $18,000 a year on the basis that the aircraft use about 8 tyres a month at a cost of $185 each. # • * Efforts are being made to establish an air freight exchangeat Antwerp. Since the port is one of the most important in Europe it should secure an important share of air freightbusiness. The new exchange will co-operate very closely with the Baltic exchange of London. REAR ENTRY : The integral passenger steps of the Convair 240 give a sense of steadinesswhen being used not customary with the more usual transportable steps. The double exhaust thrust augmentor f>if>es on each engine con be seen to advantage in this photograph. Northern Rhodesia Aviation Services Limited, a subsidiary company of British Aviation Services Limited, has been authorized to operate maintenance facilities at Lusaka, N'dola, and at the airfield under construction at Livingstone. The company will provide maintenance, traffic and passenger services for scheduled carriers and casual visitors. * • » United Airlines plan to employ pilot-engineers as thin!crew members in Douglas DC-6 aircraft. The scheme is iu accordance with a C.A.B. ruling which requires large aircraftto carry engineers, and in addition to pilot qualification a flight engineer's certificate and an aircraft radio operator'slicence will be required. . • * * * A Tudor II belonging to Air Flight Limited, of whichA. V-M. D. Bennett is managing director, has joined otli'-i charter companies on the Berlin air lift. After leaving thiscountry with nearly 10 tons of dehydrated potatoes it was to join the shuttle service between Berlin and Wunsdorf. A.V-MBennett's aircraft is the second prototype Tudor II with all recording equipment removed. - * # * A telegram was sent on August 28th to Lord Pakenham bythe Society of Licensed Aircraft Engineers deploring the announcement that B.O.A.C. were of the opinion that Con-stellation maintenance was at present impracticable in this country. TheSociety made the observation that the B.O.A.C. Croydon depot was in posses-sion of the only Constellation electrical generator test rig outside the UnitedStates. It was stated that a British com- pany of vast experience in overhaul andmaintenance had offered to undertake the work, but the offer had been rejected ongrounds of inadequate equipment and specialized skill. • * * Air France has increased services toTunis to five flights a week. The Cairo service has also been modified to makeone direct return service non-stop from Paris to Cairo in 9 hours 15 minutes andfrom Cairo to Paris in 7 hours 50 minutes, with one other return servicea week stopping at Rome. The com- pany's return service to Haifa will beflown twice a week. Since the all-up weight of the Lock-heed Constellation Model 749 has been increased to 105,0001b, the landingweight has been increased to 89,0001b. Other performance figures claimed forthe aircraft are a cruising speed of 303 m.p.h. at 23,000ft with 67 per centnormal rated power at a gross weight of 105,0001b, maximum range of 5,210miles at 10,000ft, and distance of 3,000ft to land and stop from a 50ft altitudeat sea-level at maximum landing weight. A 31
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