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Aviation History
1950
1950 - 1432.PDF
FLIGHT, 27 July 1950 CIVIL AVIATION NEWS . . . tions. These include the addition of^i dorsal fin,an increase in the span of the tailplane, and dimensional increase of the tailplane-anchoragetorsion-box. Increased flap area has been pro- vided to compensate for the section of flap whichpreviously extended beneath the fuselage. The Apollo has now completed more than 100 hours'test flying, and the grant of an experimental- category C. of A is expected shortly. A secondprototype is now reported to be nearhig com- pletion at the Armstrong Whitworth factory. Powered by Mamba, Mk. 1 turboprops, toeApollo has a maximum take-off weight of 45,000 lb and a maximum disposable load of 16,050 lb.Cruising at 276 m.p.h at 20,000ft, the aircraft has a range of 920 miles, with 7,500 lb. payload. NATIONAL AIRWAYS PLAN FROM August 1st all transatlantic aircraftapproaching London Airport will complete the last 25c miles of their flight under the opera-tional control of Green Airway One, the first 9i the National Airways network to come intooperation. The complete system (illustrated on this page) is being progressively introduced inthree phases, of which the first has now been completed. The second will consist of the exten-sion of Green Airway One from London eastwards to Brussels via Maidstone and North Foreland,and the institution of Amber One (Daventry- Dunsf old-Dieppe-Paris), Amber Two (Daventry-Maidstone-Abbeville-Paris), and Red One (Duns- fold-Maidstone-Amsterdam), with another sectionleading to the Channel Islands. The extension of Amber One northwards toPrestwick and Glasgow and the opening of Green Two, Red Three and Blue Two will complete thethird phase. Each airway will be divided by radio fanmarkers placed at regular intervals along its length, and traffic within the lane will be soregulated that no two aircraft are in one section at the same height at the same time. Aircraft will follow holding pro-cedures ovej the marker beacons until clearance has been given to enter the section ahead. Military aircraft having occasionto cross an airway will be controlled. The principles on which the control is based were described in Flight of July 13th. , • MfF BEACON <3>VHF FANMARKER 0 AIRPORT AIRFIELD CREEN AMBER BLUE RED Squires BURTONWOOD ^MANCHESTER (Ringway) V^TFORD ' RTHOLT LONDO SKY-LANES : Location of the V.H.F. fan markers are seenin relation to the major airports and M/F range stations which constitute the axes of the National Airways networkdescribed on this page. Aircraft approaching a control zone will do so via the air lanes, having obtained clearance beforeentering a particular section. The first lane opens on August I st. BREVITIES IT has now been announced by the C.A.B. that PresidentTruman has approved the sale of A.O.A. to Pan American World Airways for a sum of approximately £6% million. Asintimated in Flight last week, the merger is subject to a revi- sion of the trans-Atlantic route-structure. * * * tInternational traffic transactions made through the I.A.T.A. Clearing House, London, during May totalled some $14,002,000,bringing the volume of such clearances for the first five months of the year to $64,085,000.* * * For the first quarter of this year B.C.P. A. reports substantialimprovements in traffic on routes between Australia, New Zealand and North America, as compared with figures for thecorresponding period of 1949. Results for the quarter are expected to show a profit.* * * Although Central African Airways Corporation is now only in its fourth year of operation, development, particularly of passenger traffic, is said to have exceeded all expectations. Passenger mileage rose from 12,095,159 in 1947 to 19,981,538 in 1949. Cargo lifted in the whole of 1947 amounted to 79,543 kg; this year the figure was 120,550 kg for the first three months. * * * Of the passenger load factors achieved by the three mainAustralian airlines for 1949, the highest was that recorded by T.A.A. (65.1 per cent). The A.N.A. load factor was 63.8 percent and that of Ansett Airways 46.7 per cent. The Ansett Airways load factor was related to DC-3S with a seating capa-city of 28, as compared with the 21- and 24-seat versions operated by T.A.A. and A.N.A. respectively In 1949 Sabena made 12,686 commercial flights; of this total2,650 were on the Belgian Congo network and 247 on North Atlantic routes. * * * On the B.O.A.C.-Qantas route between the United Kingdom and Australia, Constellation passenger services have now reached the record frequency of five per week in each direction. * * * The newly formed U.S. Air Coach Transport Association,mentioned in Flight of July 6th, has stated that last year 250,000 passengers used "air coach" services; this figure isexpected to be doubled this year. it * * *In Flight of June 15th it was stated that B.E.A. had ordered one Bristol 171 helicopter for operational trials. It now trans-pires that the helicopter is, in fact, merely on loan to the Corporation for tests which are being carried out by the B.E.A.Helicopter Experimental Unit. * * • Acting as principal contractor to the U.S. Air Force, PanAmerican World Airways is now assembling a fleet of some 27 aircraft which will take part in a special military air liftto the Far East. The aircraft, which are being provided by a total of nine airlines, include three Boeing 377s and 24Douglas C-54S. * * * Total revenues of the principal Canadian carriers during 1949reached the record figure of almost 39J million dollars.^This represents an 18.4 per cent increase over the total for 1948.Operating expenses rose, however, by 17.1 per cent, and result- ing net revenues showed only a slight improvement over thefigure for the previous year.
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