Pratt-Whitney has launched the energy-efficient Geared Turbofan engine to power the new Mitsubishi Regional Jet. The airframe application for the Geared Turbofan was designed to deliver a significant reduction in fuel burn and noise with lower environmental emissions and operating costs. The Mitsubishi Regional Jet is a 70 to 90 passenger aircraft. Mitsubishi expects a global demand of about 5,000 of the jets over the next 20 years.
The Geared Turbofan allows the engine's fan to operate independent of the low-pressure compressor and turbine, which results in greater fuel efficiency and a slower fan speed for less noise. Pratt-Whitney says the engine builds on more than 20 years of development with technology improvements in every module. Full-scale engine testing will begin later this year and flight testing is slated for 2008.
Most machine design engineers will survey existing component manufacturers for standard linear guide products, limiting what they can do with their designs. Using extruded aluminum profile guides can customize machine designs while shrinking the bill of materials.
Practically all electronic devices today contain metals that may
be coming from conflict-ravaged African countries. And political pressures will increasingly influence how these minerals are sourced and used in products.
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