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Aviation History
1950
1950 - 0682.PDF
442 FLIGHT. 6 April 1950 CIVIL AVIATION NEWS... gallons) was insufficient to ensure an adequate margin of reserve for the sector to be flown; it also emphasizes that, in multi-engined aircraft, it is of importance that the correct method of handling the fuel system should be rigidly adhered to in order to prevent engine failure through air entering the system. The report adds that, under the prevailing con- ditions and at the all-up weight obtaining at the time of the accident, this type of aircraft should be capable of being freely manoeuvred with any two of its engines inoperative. The second accident occurred to Rapide G-AGPI, owned by Somerton Airways, Ltd., which, when landing at Cowes, touched down on the runway and attempted to go round again. Due to a tail-wind component of 8-9 knots, the air- craft failed to gain sufficient height, struck a tree on the airfield boundary, and crashed in a field beyond. The accident was attributed to errors of judgment on the part of the pilot," who misjudged the approach and did not take overshoot action until it was too late. Several of the passenger-seats broke away, and it was later found that the welded attachments (not of de Havilland manufacture) to the floor-plate were defective. The pilot and passengers escaped with injuries. GROWTH OF BRITISH AIRMAIL STATISTICS for the financial year 1948-1949, issued by theO Post Office, show that the total number of inland letters carried by air during that year was 69,400,000, an increase ofalmost 70 per cent on the figure for the previous year. The increase was due mainly to the growth of traffic on mail servicesto and from Ireland and to Scotland. Civilian mail to overseas points increased by 30 per cent from 99 million items in theprevious year to 129- million in 1948-49. The improvement was attributed mainly to the introduction on July 1st, 1948,of an "all-up" service to the greater part of Europe. Under this arrangement all first-class mail, including postcards, issent by air without additional charge whenever delivery can be expedited by doing so. With the extension of the lightweightsixpenny air-letter service to French overseas possessions, this service became available to all extra-European destinations. Hritish Airways* Operating Statistics for Dvcvnther. 1919 Total revenue aircraft-miles Total aircraft miles ... ... ... Revenue passengers carried ... Revenue passenger miles ... ... Available scat-miles ™ ; ...T ",•••—• Revenue passenger load factor (per cent) ... Cargo carried (tons) : Mail •;»-. *'.- Freight ,„".. .„..»"• -,> ~ .— Total revenue load ton-miles Total usable capacity ton-miles Overall revenue load-factor (per Total revenue hours... Total non-revenue hours Equivalent annual utilization (revenue hours) per aircraft Unduplicated route miles in opera- tion at end of period Percentage regularity Average length of stage flight BO. AC. All Divisions 2.211,921 (2.73/.048) 2,438,215 (2,949. (93) 12,034 12.201) 33,457,036 (33,(65.747) » 57,590,342 (55,355,579) 58.1(59.9) 212.4(2/3.7) 359.3 (374.9) 5,738,419 (6,027,537) 10,173,449 (9,292,4/2) 57.4 (61.3) 10,361 ('4,475) 1,299(',278) 1,528 — 71,447 (9f,408) 96.6 (98.0) 1,048(/,0/7) (figures for the corresponding perioc B.O.A.C. i Western i Division ! 298,259 (272,(76) 375,216 (330,066) 2,217 ((,766) 5,631,880 (4,(36,328) 10.696,218 (6,895.83/) 52.7(60.0) 57.1(43.2) 58.1 (52.0) 925,026 (699,063) 1,629,439 (/,/36,87/) 57.4(62./) 1,266 C.259) 369 a/3) —— 7,725 (8,523) 94.7 (93.J) 1.171(1.101) B.O.A.C. \ Eastern Division ' 1.467,758 </,947,383) 1,592,829 (2,044,079) i 7,653 (7,287) . 24,832,160 (23,942,400) 38.867,066 (37.851,095) 63.9(63.3) 139.9(146.2) 246.5 (25JJ) 4.191,682 (3,924,997) 6,610,205 (6.250,804) 63.4(62.8) 7,108 ('0,694) 796(606) — — 43,782 (58.698) 95.7 (9?.5) 1,091C.023) in 1948 ore given B.O.A.C. South American Division 445,904 (5//.4S9) 470,170 (575,048) 2.164 (2.439) 2,992,996 (5.087,019) 8,027,058 (/0,608,653) 37 3(48.0) 15.4<24_?) 54.7 (67.4) 621,711 (9/5.48/) 1,770,713 (/,652,792) 35.1 (55.4) 2,320 (2,522) 134(359) — — 19,940 (24,187) 100.0 (95.3) 876(952) n parentheses) B.E.A. All : Divisions 1,206.577 (9/2,327) 1,243.802 (94Z.979) 41.125 (28,556) 12,585.683 (8,899,28/) 22,631,131 </5,0/0,457) 55.6 (59.3) 493.8 (360.2) 562.7 (440.0) 1,554,187 (/,137,(22) 2,578,137 (/,82/./64) 60.3 (62.4) 8.262 (6,455) 708 (478) 1,088 C.0I5) 12,528 (11,820) 95.1 (92.2) 222097) B.E.A. British Division 339,613 (3/3,89/) 350,256 (323,727) 18,790 (/6,592) 3,337,187 (2,853,062) 6,926.654 (4,934,996) 48 2 (57i8) 160.9 </36.8) 164.2 (108.3) 321,599 (271,385) 63^,474 (449,(84) 50.7 (60.4) 2,935 (2,827) III <99) 833 (906) 2,575 (2.265) 96.5 (95.5) 117 ((07) B.E.A. Continental Division 866,964 (598,436) 893,546 (6)8,252) 22.335 (J 1,964) 9,248,496 (6.046.2/9) 15,704,477 ((0,075,46/) 58 9 (60.0) 332.9 U23.4) 398.5 (331.7) 1.232.588 (865,737) 1.943,663 </,37/,980) 63 4 (63.1) 5,327 (3,628) 180 (125) 1,316 (1,125) 9,953 (9,555) 93.4 (85./) 368 (4/7) AS shown in the table above, the British Airways Corpora-tions, and B.E.A.'s associated operators, carried 54,000- odd passengers during December 1949. This figure represents an increase of 31.4 per cent on the result for the corresponding month of 1948. There were also increases of 9.7 and 14.3 per cent in the totals of revenue passenger-miles and available seat-miles respectively. The total of revenue aircraft-miles flown, however, decreased by 4.4 per cent. Expressed as a total of all services, the passenger load-factor decreased by 2.5 per cent; and the overall revenue load-factor also dropped from 61.5 to 58 per cent in December, 1949. Of these totals, B.O.A.C. flew 33,457,000 passenger-miles, more than six million of which were achieved on Western Division routes, an increase of over 500,000 miles on Novem- ber's figure. B.E.A. recorded some 12,586,000 passenger- miles, an increase of 41.4 per cent on last year's figure; the number of passengers carried by the Continental Division increased by 86.7 per cent from the total for December, 1949. Companies operating under associate agreements with B.E.A. flew approximately 95,000 passenger-miles as compared with only 3,000 last year. Summary for 1949: Using provisional figures for the month of December, a table of the more important operating statistics has been prepared for the calendar year 1949. These totals provide some interesting comparisons. The number of pas- sengers carried by both Corporations and their associates increased Dy nearly 30 per cent, passenger-miles by 11 per cent and the freight and ton-mile figures by 17 and 6 per cent respectively. In the table—given below—last year's figures are shown in parentheses, together with the percentage change. Aircraft-mites Capacity ton-miles Passenger-miles Mail ton-miles Freight ton-miles t B.O.A.C. 27,688.000 (31,745.000) - 12.8 110,800,000 (99,818.000) ••• 11.0 406,356,000 (403,480,000) + 0.7 8,976,000 (8,989,000) - 0.2 15.113.000 (13,344,000) + 13.3 B.E.A. 15,161,000 (12,353,000)+ 22.7 34,406,000 (24,994,000) -1 37.7 201,062,000 (150,726,000)+ 33.4 1,587,000 (949,000) + 67.2 2,758,000 (2,176,000) + 26.8 Total of Corporations 42,849,000 (44,097,000) - 2.8 145,205,000 (124,811,000) + 16.3 607,417,000 (554,206,000) + 9.6 10,563,000 (9,938,000) + 6.3 17.877,000 (15,520,000)+ 15.2
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