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.

Writer

Thierry Dubois

Semia, a French manufacturer of maintenance equipment, was at Helitech 2008 exhibiting the Syntham 5000, a new engine vibration-check device that can monitor several channels simultaneously.
“Multi-channel means that you can measure two or three points at a time. This is valuable, since each acquisition involves one engine start,” Jean-Marc Boubennec, Semia’s sales and support manager, told AIN. Vibration is measured during the engine’s starting phase because potential problems are more apparent during transients.
The touch-screen device includes all the hardware necessary for independence from a PC. The system also features “entry-level” rotor track and balance. “The Syntham 5000 only measures; it does not suggest corrections,” Boubennec said.
Like its predecessor, the Syntham 2000, the Syntham 5000 can measure turboshaft engine vibration, component by component. Said Boubennec, “This is useful every time major maintenance–such as blade replacement or engine overhaul–is performed.” Moreover, unusual vibration left unaddressed can cause crew and airframe fatigue. Excessive starter/generator vibration can cause cracks in the fuel system and therefore leaks, Boubennec emphasized.

News and issues regarding all manner of civil and military rotorcraft and their powerplants, including helicopters, tilt rotors and unmanned air vehicles.

Helitech '08: Semia Introduces Autonomous Vibration-check Device

Semia, a French manufacturer of maintenance equipment, was at Helitech 2008 exhibiting the Syntham 5000, a new engine vibration-check device that can monit

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