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Aviation History
1973
1973 - 2608.PDF
655 fy' HMK •';-;"^v- S?e " > * ;»' ^"K : fisH^^^^nl <:-*"'»•; ;• .... •••if • :~S.-;:A:' Left, the Advanced 727-200 continued to sell well this year and is being produced at 8 a month. Facing page, 707s continue to sell steadily but relatively slowly. Below, 737s are being built at three a month Northwest, 20; Pacific, 3 (now with Hughes Airwest); Pacific Southwest, 8; Pan American, 21; Piedmont, 1; Royal Nepal, I; Sabena, 2; South African, 6; TAP, 4; Transair Sweden, 2; TAA, 6; TWA, 27; United, 75 (plus 13 leased from Boeing); Varig, 4; Wardair, 1; FAA, 1; ITT (executive), 1. Total, 407. Boeing 727-100C/QC orders: Air Asia, 2; Airlift International, 4; Alaska, 3; American Flyers, 2; Ansett, 2; Ariana, 2; Avianca, 3; Braniff, 18; China Air, 1; Continental, 1, Dominicana, 1 (leased from Boeing); Eastern, 25; Executive Jet Aviation, 2; Icelandair, 1; LAN-Chile, 3; Lufthansa, 11; Northwest, 12; Pan American, 6; Sabena, 3; South African, 3; Southern Air Transport, 1; TAP, 2; Transair Sweden, 1; Trans-Caribbean, 1; Trans International, 2; TWA, 8; United, 23 (plus 15 leased from Boeing); World, 6. Total, 164. Boeing 727-200/Advanced 200 orders: Air Algerie, 2; Air France, 20; Alia, 2; Allegheny, 2; All Nippon, 24; American, 41; Ansett, 4; Braniff, 27; Condor, 6; Continental, 37; Delta, 36; Eastern, 41; Frontier, 4; GATX/Armco/Boothe, 6; Iberia, 27; Libyan Arab, 2; Lufthansa, 18; Mexicana, 11; National, 25; National Aircraft Leasing, 4; Northeast, 11 (now with Delta); Northwest, 24; Olympic, 6; Pacific Southwest, 24; Royal Air Maroc, 3; Sterling, 3; TAA, 4; THY, 4; TWA, 54; Tunis Air, 3; United, 28; Western, 18. Total, 521. See page 646 for tabular data and page 672 for drawing. Boeing 737 The 737 is being produced at three a month—up from two a month since September—and is likely to go to four a month in February. Boeing does not think that all the com peting twin-jets can remain in production but the 737 will definitely remain so for at least another year and almost certainly beyond. The smallest member of the Boeing family of jet airliners, the twin-jet short-haul 737 was announced in February 1965, together with a Lufthansa order' for 21. The 737 design reversed the trend for short-range jets by returning the engines to an under-wing location. Boeing claims to have demonstrated that this location (instead of on the aft fuse lage) has given a lower structural weight, amounting to a saving of up to 1,5001b, 680kg. Other advantages cited are more cabin volume for overall size, a simplified fuel system, minimum drag with a wide body, less restricted loading limi tation with respect to the centre of gravity and easier main tenance. With the same cabin cross-section as the 707 and 727, the 737 is the only small twin-jet with six-abreast seating. The first Might in the spring of 1967 was followed by certifi cation in December of that vear. Boeing introduced the longer -200 at the end of 1968. In a series of product improvements the 737 has grown in gross weight from 95,0001b, 43,200kg to a maximum taxi weight of 116,0001b, 52,618kg; it has been certificated with the JT8D-9 and -15 engines and is available with gravel-runway kits and optional extra fuel tanks. An APU is fitted as standard for ground starting and air conditioning. An Advanced 737 was offered for deliveries beginning in May 1971, All Nippon Airways taking the first aircraft. The Advanced version features a 15 per cent improvement over the basic 737 in landing and take-off performance. Changes include refinements in the leading-edge slats and trailing-edge flaps, a revised fluid-metering pin in the main undercarriage struts, the optional JT8D-15 engine with 15,5001b of thrust (an increase of 1,0001b over that of the -9), an improved anti-skid system and the first fully automatic brakes on any com mercial airliner. Boeing's new "Super-jet" interior which imparts a wide-fuselage appearance to the small short-hauler is now standard equipment on the Advanced model. Low- pressure tyres can be fitted for use from unpaved runways. Boeing 737-100 orders: Avianca, 2; Lufthansa, 22; Malaysia- Singapore, 5 (now with Singapore International); Nasa, 1. Total, 30. Boeing 757-200/C/QC/Advanced 737 orders: Aerolineas Argen tinas, 9; Air Algerie, 4; Air California, 2; Air Madagascar, 2 Air Zaire, 3; All Nippon, 16; Braathens, 5; Britannia, 13 Cameroon, 2; CP Air, 7; Deta, 3; Eastern Provincial Frontier, 5; GATX/Armco/Boothe, 15; Indian Airlines, 7; Iran Air, 4; Irish International, 8; Lufthansa, 6; Malaysia Airways 8; Malaysia-Singapore, 2 (now with Singapore International) Mey Air, 2; NZNAC, 5 (1 leased from Boeing); Nigerian, 2 Nordair, 4; Northern Consolidated, 3 (now with Wien Air) Pacific Southwest, 11; Pacific Western, 6; Piedmont, 12; Pluna I; Sabena, 10; Saudia, 7; South African, 6; Air Southwest, 4 Transair Canada, 2; Transavia Holland, 1; United, 75; Vasp, 9 Western, 30; Wien Air, 1; Wien Alaska, 1 (now with Wien Air) Business Jet Aviation, 1; USAF, 19. Total 338 ng. See page 648 for tabular data and page 673 for drawi Boeing 747 The big news on the 747 front is the go-ahead of the cut-back 747 known as the SP. It is a direct competitor for the DC-10-30/-40. Boeing is also flight-testing a General Electric CF6-50-powered 747. More than 49 million passengers have now flown on over 383,000 revenue flights by 747. The aircraft has covered more than 770 million miles since entering service in January 1970,
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