LONDON (Reuters) - Rolls-Royce has marked 25 years of the Trent aircraft engine with a documentary that examines what the engine has achieved, highlighting the link with major events such as the first flights of the Concorde.

Britain's Rolls-Royce sign is pictured on their headquarters in Derby, Britain, May 8, 2018. REUTERS/Peter Nicholls

Once derided by some as “the biggest leap backwards since the dinosaurs”, the Trent 1000 first flew in the early hours of Feb. 18, 1992, with its six-cylinder, two-stroke, liquid-cooled unit.

Rolls-Royce refers to the Trent 1000 as the “engine that took flight”.

“This film focuses on the relationship between aircraft and engines, from the first flight of Concorde to the last Concorde, and tells how the flight of the plane, and the flight of the engine in a twin-engined Trent, has changed the way people fly,” Rolls-Royce said.

Trent engines power Airbus’ A350s, but are also in use on many other aircraft around the world, including Boeing’s 787 Dreamliner and Airbus’s A380 superjumbo.

The jet plane manufacturer itself retired the mighty A380 in October after more than a decade of operations.

In 2018 alone, there were 1,600 Trent engines used by different airlines, on more than 29,500 flights.

“That is enough to fly a small country to Japan, or Britain to Australia,” Rolls-Royce said.

As well as celebrating the anniversary, Rolls-Royce has refreshed its website, with an instructional version explaining how the engines work, and new elements to the popular engineer and entrepreneur Ted Hildebrandt’s Alphajet video collection.