ABOUT THIS EPISODE
From resolving problems with the RB211 fitted on the TriStar to persuading Airbus that the Trent 500 was what they needed for the A340, Professor Geoffrey Kirk led many of the design teams that kept Roll-Royce’s engines powering civil airliners from the 1960s to the 2000s. After retiring as Chief Designer of Civil Engines at Rolls-Royce in 2007, he has turned to education, becoming an Honorary Professor at the University of Nottingham and inspiring the next generation of engineers and designers.
In this interview, Geoff shows how a childhood fascination with flying and making model aeroplanes evolved into a lifelong career at the forefront of aviation innovation. Beginning at Rolls-Royce in Derby in 1968, Geoff spent four decades working through a period of rapid technological change in aero-engine design, which continually demanded creativity and problem-solving.
Geoff discusses his contributions to several major civil aero-engine programmes, leading project design teams on the RB211-535E4 powering the Boeing 757, the V2500 for the Airbus A320 family, the Trent 500 for the Airbus A340-500/600, the Trent 900 for the Airbus A380, and the original Trent 1000 for the Boeing 787.
Kirk also reflects on how electronics transformed engine design and capability, and on the growing challenge of balancing fuel efficiency, lower emissions, and commercial viability under increasing environmental pressure. He considers the future of both long- and short-haul aviation, including the role of sustainable aviation fuels.
Looking back on his career, Geoff Kirk explains that engineering future products always involved anticipating the next step in technology. “I think about the future,” he jokes, “but the future is never entirely clear.” His advice to new engineers is not to try to predict everything: focus on building skills, stay adaptable, and concentrate on the next step rather than mapping out an entire career in advance.
Professor Geoffrey Kirk CEng FREng FRAeS was interviewed by Sir George Cox CRAeS for the Royal Aeronautical Society/National Aerospace Library’s oral history project ‘If I only didn’t do it that way…….” Capturing history from the horse’s mouth'. The recording was edited by Eur Ing Mike Stanberry FRAeS.
A transcript of the interview recording is available on the National Aerospace Library catalogue: https://raes.soutron.net/Portal/Default/en-GB/RecordView/Index/4193329
