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September 2007 edition

European manufacturers see the green light at the end of the environmentally friendly aircraft development tunnel

Volvo Aero reports good progress in key European projects designed to develop lighter and greener aircraft. One project, VERDI (Virtual Engineering for Robust Manufacturing with Design Integration), is developing a new generation of engineering technologies to enable the simulation of the combined effects of all manufacturing processes during design.

The other, AIDA (Aggressive Intermediate Duct Aerodynamics for Competitive and Environmentally Friendly Jet Engines) is focused on developing an alternative design for an intermediate casing to reduce weight and thereby carbon dioxide emissions.

Volvo Aero says both projects highlight the efforts being made by engine manufacturers to tackle the challenges of adapting and advancing technologies needed to ensure the continuous improvement of environmental performances. AIDA is concentrating on flow channels in the intermediate casing and turbine section of the engine.

Stephane Baralon, the project manager of AIDA, which is an EU research project managed by Volvo Aero, says: "The engine is secured to the aircraft partly via the intermediate casing, one of the components in Volvo Aero's product specialisation. Reshaping of the flow channels will help reduce engine weight. A 20 per cent increase in the deflection of air flows will help cut emissions of carbon dioxide by two per cent with a more aggressive, shorter duct leading to a shorter and....

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