FlightGlobal.com
Home
Premium
Archive
Video
Images
Forum
Atlas
Blogs
Jobs
Shop
RSS
Email Newsletters
You are in:
Home
Aviation History
1970
1970 - 1611.PDF
FLIGHT International, 20 August 1970 i speed device, maintaining constant output frequency by elec tronic means. Cutbacks in the test programme include fully testing the fuel system in the first aircraft instead of building a fuel test rig. But money saved in the earlier stages of the programme will have to be spent later on to get the production aircraft up to specification—the DoT estimates that flight testing, , tooling and production costs of the definitive aircraft will rise from £290 million to £330 million, by which time the US Government hopes to have stopped contributing to the costs. Boeing appears to have agreed to footing the bills during this phase in an effort to make sure that the aircraft is not cancelled in the current somewhat anti-SST atmosphere. CONCORDE AIRBORNE AGAIN CONCORDE resumed its flight test programme again on August 12, when 002 was airborne for lhr 46min from Fairford. Mach 1.15 was reached at 35,000ft, 10,600m and the aircraft flew at supersonic speed for 17min. The flight was conducted over a triangular route in the Western Approaches south of Ireland and west of Cornwall. Bad weather prevented flying the next day but 002 was airborne again on August 14 * for Ihr 47min, during which time it remained supersonic for 41min. On this outing the aircraft achieved Mach 1.35 at 40,000ft. 12,000m while flying over the North Sea test route flown by Mr John Cochrane, but with Mr Brian Trubshaw in the right-hand seat. Mach 1.35 was the highest speed achieved by 002 on April 9, during its previous series of tests. The French-assembled prototype, 001, at present having the latest -3B standard of Olympus 593s fitted at Toulouse, has flown at up to Mach 1.5, but this was done with fixed-geometry intakes. The work done prior to the latest flights by 002 has involved installation of Olympus 593-3Bs of 34,7001b, 154kN thrust, fully automating the intake control system, and fitting an automatic rudder-control system to cater for engine failure and consequent side slip at speeds above Mach 1.7. This system is controlled by air bleeds tapped from the engines. This added sophistication supplements the control modifications made previously to prevent excessive sideslip in the event of a double 263 engine failure at high supersonic speeds. These earlier modifica tions proved to be effective during the last series of flight trials when simulated double engine failures at supersonic speed produced no problems. BAC is conscious of the fact that the current Olympus 593-3Bs produce a varying but large amount of smoke. Production-standard -602 engines will use annular combustion chambers and vaporising fuel systems instead of the can- annular chambers and high-pressure spray burners used at present. During a recent run on the test bed the exhaust from a -602 engine was "an almost invisible heat haze" according to Rolls-Royce and BAC. By the time of service entry Concorde should be smoke free without the need to use additives. Australian Fares Up The Australian Government has approved fare increases averaging 6 per cent for domestic services. The increases were requested by the two main domestic airlines, Ansett and TAA. This is the first such increase for three years. TAA points out that in the intervening period its salary and wage bills have gone up 40 per cent. New Icao Secretary General Dr Assad Kotaite has become the new chief executive officer of Icao for a period of three years, beginning on August I. He succeeds Mr B. T. Twigt of the Netherlands. Dr Kotaite was most recently the Lebanese representative on the Icao council—a position he held from 1956 to 1962 and from 1965 until the end of July this year. He was chairman of the air transport committee from 1959 to 1962 and from 1965 to 1968. During the period from 1963 to 1964, when he did not serve on the Icao council, Dr Kotaite was chief of administrative services. Directorate General of Trans port, Lebanon. ;:
Sign up to
Flight Digital Magazine
Flight Print Magazine
Airline Business Magazine
E-newsletters
RSS
Events
