Thierry Dubois is a freelance writer specializing in helicopters, business aviation and aerospace technology. He earned a degree in fluid dynamics from an engineering school in Toulouse, France in the mid-1990s. At an unexpected crossroads, he found his first job in journalism. In 1997, he started working for French aerospace weekly Air &amp; Cosmos in Paris. This lasted until 2000, when he moved south to Lyons. He then became a freelancer, working for various aerospace publications and has been part of the AIN team since late 2000. In addition to writing about business aviation, Thierry shares responsibility for the rotorcraft section. He also is a regular on-site writer for AIN’s daily editions at international airshows such as the Paris, Farnborough, Dubai and Singapore shows, as well as at EBACE in Geneva.
In 2007, he won the Honeywell award for “Best systems or technology submission” at the Aerospace journalist of the year awards. In 2013, he won an Aerospace Media Award for the "Best Safety, Training &amp; Simulation Submission."
In other activities, Thierry moderates international conferences on aviation technology topics. Thierry is married and has three children, who seem to begin enjoying the mountains–as their parents do.

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Thierry Dubois

Now that its 11,000-pound-thrust Silvercrest turbofan has a launch application–the <a href="http://www.ainonline.com/aviation-news/ebace-convention-news/2012-05-14/cessna-launches-longitude-jet">Cessna Citation Longitude</a>–Snecma can get serious about engine certification efforts. Flight testing of the engine is due to start in the first half of 2013 using a Gulfstream GII as a testbed, with engine certification pegged for 2015, the French company said yesterday at EBACE.


Eight engines will take part in the certification effort, said Snecma Silvercrest general manager Laurence Finet. The first engine is now being assembled after full-scale engine development started in the third quarter of 2010. Snecma has started running the engine core, and the first full engine is due to go to test this summer at its Villaroche factory near Paris, which also produces CFM International engines for Airbus and Boeing airliners.


During the flight tests the GII testbed will have one of its Rolls-Royce Speys replaced with a Silvercrest. Snecma obtained the GII from sister company Sagem, which had been using it as a testbed for avionics upgrades. Finet told AIN that Snecma is also entertaining the idea of a GII re-engining program. “Why not?” he said. “We are studying all possibilities.”


According to <a href="http://www.ainonline.com/aviation-news/aviation-international-news/2010-08-27/turbofan-manufacturers-continue-green-efforts">Snecma</a>, the Silvercrest will burn 15 percent less fuel, emit 50 percent less nitrous oxide (NOx) than the CAEP/6 standard and halve the noise footprint “compared to existing engines in the 10,000- to 12,000-pound class.”

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