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

The pace of new technology infusion in helicopter turbine engines is not slowing. General Electric, Honeywell, Pratt &amp; Whitney Canada and Rolls-Royce all have significant civil turboshaft development in progress. Turbomeca has no major program under way, apart from the (mostly military) Ardiden. But the French-based firm has precise views about future key technology advancements.
After years of quiet work, Rolls-Royce in March simultaneously announced improvements on the Model 250 and a new engine, the RR300. As its designation suggests, the latter engine generates 300 shp for takeoff and 240 shp in cruise. It will replace early, low-end versions of the 250, with which it shares a type certificate. The RR300 will propel Robinson’s first turbine helicopter, the R66.
Certification is slated for early next year, program director Chris Fultz told AIN. The first two flight-worthy engines were delivered to Robinson’s Torrance, Calif., plant on February 1. At Rolls-Royce’s Indianapolis development and production facility, the RR300 has accumulated more than 150 test hours. Testing on the first complete engine began in September, following compressor runs in May. The program was launched in January last year.

News and developments about aircraft engines, including turbofan, turboprop, turboshaft and piston.

Turboshaft and turboprop

The pace of new technology infusion in helicopter turbine engines is not slowing. General Electric, Honeywell, Pratt & Whitney Canada and Rolls-Royce

2024 Corporate Aviation Leadership Summit

Matt Thurber

News and issues relating to business, corporate and private aviation, primarily regarding turbine-engine-powered airplanes and helicopters. Subjects include aircraft, engines, maintenance, operations, personnel, acquisitions, accidents, safety, security, and training.

One engine would be able to run at low-idle in a twin-engine helicopter application

FAA Proposes Special Conditions for PW220A Idle Cruise

Charles Alcock

Essential news and analysis on the defense aerospace business. Your trusted source for new and ongoing programs and requirements in military aircraft (manned and unmanned), engines, avionics, weapons and associated systems, including ground-based air defense.

Improved engine production and test facilities are mainly focused on military programs

Rolls-Royce Completes $1 Billion Engine Site Upgrade

News and developments about airplanes, helicopters and unmanned air vehicles used in all varieties of operations, including airlines, military, business, commercial, general aviation and private.

News about environmental issues relating to aircraft operations, including noise issues, emissisions, and regulations. See Fuel for biofuel.

News and issues relating to the aerospace industry that are related to the science, engineering and business of flight in space involving civil, industrial and military applications, and similar topics related to flight in the atmosphere of the Earth that are not covered more directly by other AINonline subject channels. In other words, both astronautical and aeronautical subjects, except for those aeronautical topics that are specifically covered elsewhere on this website.

The first hybrid-electric flights above 30,000 feet, as well as the first across the North Atlantic, GE says.

GE Aerospace and Beta Technologies Cross Atlantic in Hybrid-electric Saab 340B Commuter Aircraft

Australian start-up planned to convert Beechcraft Bonanza and 1900D aircraft

Lack of Funding Shuts Hydrogen Propulsion Pioneer Stralis

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

Turboshaft has flown more than 600 hours after first flight in March 2023

EASA Issues Type Certificate for AW09 Arriel 2K Engine

News and issues about aviation maintenance, repair and overhaul (MRO), covering all segments of the aviation industry; and modifications for aircraft and engines. Subjects include product support of aircraft, engines and avionics, MRO company mergers, acquisitions, announcements and personnel, Airworthiness Directives, Supplemental Type Certificate approvals and other topics.

News and information on safety procedures and concerns.

News and issues concerning general aviation, specifically airplanes and helicopters powered by piston and alternative engines (i.e., non-turbine powered aircraft). Subjects include aircraft, engines, personnel, acquisitions, accidents, safety, security and training.

More In Engines

FAA Proposes Special Conditions for PW220A Idle Cruise

One engine would be able to run at low-idle in a twin-engine helicopter application

Rolls-Royce Completes $1 Billion Engine Site Upgrade

Improved engine production and test facilities are mainly focused on military programs

GE Aerospace and Beta Technologies Cross Atlantic in Hybrid-electric Saab 340B Commuter Aircraft

The first hybrid-electric flights above 30,000 feet, as well as the first across the North Atlantic, GE says.

Lack of Funding Shuts Hydrogen Propulsion Pioneer Stralis

Australian start-up planned to convert Beechcraft Bonanza and 1900D aircraft

EASA Issues Type Certificate for AW09 Arriel 2K Engine

Turboshaft has flown more than 600 hours after first flight in March 2023

FAA’s Rocheleau Admits Unleaded Avgas Timeline May Slip

Deadline of Dec. 31, 2030 may have to be moved if a suitable fuel isn't available

Sikorsky and Safran Pledge Increased Collaboration

Proposal promises accelerated engine innovation

Canada Could Keep Gripen Engine Work at Home

GE and Magellan sign F414 support agreement

AIN Products

SUBSCRIPTIONS

RESOURCES

ABOUT AIN