Avica win anti-ice High specification ducting order for MD-11 welding chamber Trijet A purpose designed and manu proven expertise had won Avica factured twin station welding the order. Current work by Avica chamber for the manual welding Specialist capability has helped involves the manufacture of tit of titanium under very high purity Avica Equipment win a million anium ducting for the Saab SS40 conditions, has jus t been delivered pound plus contract for anti-ice and the ATR 42 and 72 pro to a leading aerospace company ducting on the McDonnell Douglas grammes, both regional aircraft. by Huntingdon Fusion Techniques MD-11 passenger trijet. Avica, based in Hemel Hemp Ltd. The agreement is for 200 sets, stead, will make six ducts for each So that the controlled atmo with an option for a further 100 MD-11 wing ranging from 6.5ft sphere inside the chamber stays sets. An initial order for 40 will to 15ft in length. The ducts enable pure and free from contamination see delivery early in 1991. hot air to be taken to each wing by atmospheric air, a double door A technical capability present where it is directed through load entry port has been built onto ation was prepared by Avica's 'piccolo' tubing to prevent ice the chamber to allow the com production engineering manager, forming on the leading edge. ponents to be passed in and out of Roger Alexander, highlighting the The contract was negotiated by the chamber without affecting the company's expertise in titanium, Roger Tyson, Avica's sales and chamber performance. from which the ducting will be commercial director who com Gas re-circulation sysems are manufactured. mented: "There's no doubt that included, which will keep the The MD-11 was certified for our superior knowledge in the purity of the argon gas to the commercial service in November manipulation, welding and fabri quality demanded by the aerospace 1990 and first deliveries and first cation of titanium across a wide industry and oxygen levels in the conditions into its component airlin e operations began in range of aerospace applications region of 10 parts per million or elements of hydrogen and oxygen, December. McDonnell Douglas was a key factor in our winning less are typical. and eliminating the risk of hydro has confirmed order and other the order." With this equipment the dew gen embrittlement of the titanium commitments for 375 aircraft, as well as surface oxidation. point of the gas is allso controlled from 32 customers. Avica Equipment Ltd, Boundary very carefully to ensure that no Due to the physical position Roger Alexander said he be Way, Hemel Hempstead, Herts. moisture can be present, thus that welders have to adopt, often lieved a combination of cost and HP2 7SL. Tel: 0442 64711. preventing break down under arc for prolonged periods of time, ergonomics are given the same design priority as technical con siderations. As specialist welding engineers with many years of regional airline's new Saab 340Bs experience solving welding tasks will be based in Dublin and fly GE turboprop will power covering a wide range of industry internal routes in Ireland to applications Huntingdon Fusion Galway, Sligo, Kerry, Derry, and new Aer Lingus regional Techniques welding process ex Knock, as well as to Leeds- perience is evident in their ap Bradford, East Midlands, and proach to chamber design — aircraft Newcastle in the United Kingdom. L.A. Beilacqua, general manager combining welding technology of GE Aircraft Engines Turbo- with welder ergonomics. GE Aircraft Engines, 1000 Four Saab 340B new generation shaft/Turboprop Department, Western Avenue, M/D-27720, aircraft ordered by Ireland's said, "We are extremely pleased Huntingdon Fusion Tech Lynn, MA 01910. national airline, Aer Lingus, for its by this selection and welcome Aer niques Ltd., Stukeley Meadows, regional carrier, Aer Lingus Com Lingus to th e growing CT7- Huntingdon, Cambridgeshire. muter, will be powered by GE powered Saab 340 customer list. PE18 6EJ. Tel No: 0480412432. Aircraft Engines' CT7-9B turbo Aer Lingus is not, however, a new Boeing order prop engines. customer of GE. Currently, its fleet of 737s are being powered by The total engine order and Air New Zealand has placed firm CFM56 engines, in which GE has orders with Boeing for four new Air New Zealand currently related spares are valued at ap a 50 percent stake." proximately eight million dollars. Boeing 767-300ER (Extended operates a fleet of eight B767- Range) and one Boeing 747-400 200ER aircraft and is a world GE's CT7.9B, introduced to the The CT7 engine family has regional market in 1989, is a acculuated maore than 2.5 million aircraft. leader in pioneering extended 1,900 shaft horsepower class engine engine flight hours, powering 250 In addition, the airline has range operations with twin-engined which has demonstrated outstand aircraft in 25 countries. secured options for a further five aircraft. ing reliability, maintainability, and Aer Lingus Commuter will Boeing 767-300s and two Boeing In addition, the airline currently the lowest fuel consumption of receive delivery of its first Saab 747-400s, excercisable at its initi operates five B747-200s and two any comparable powerplant. 340B aircraft in June 1991. This ative. B747-400s. AIRCRAFT ENGINEERING —May 1991 33
Aircraft Engineering and Aerospace Technology – Emerald Publishing
Published: May 1, 1991
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