Detroit's mass-production know-how yielded over 55,000 Merlin V12 aircraft engines during WWII. But were they better than the ones built in Britain?

“Contribution to Victory,” a film that appears to date from the early 1950s, documents the expansive efforts of the Rolls-Royce corporation to ramp up Merlin engine production for World War II.

“Contribution to Victory,” a film that appears to date from the early 1950s, documents the expansive efforts of the Rolls-Royce corporation to ramp up Merlin engine production for World War II.

The Rolls-Royce Merlin engine played a pivotal point in World War II. It was in the Mustang and Spitfire aircrafts and allowed them to fly at higher altitudes.

Without question, the Rolls-Royce Merlin engine is one of the greatest piston pushers ever made. The 27-liter V12 was built in the 1930s and 1940s and would eventually go on to power allied ...

Accepting the award, Rolls-Royce's chief test pilot Phill O'Dell paid tribute to the famous engine, which powered not only the Spitfire, but the Hurricane, Lancaster, Mosquito and P-51 Mustang.

This fire-breathing 27-liter 1,800-horsepower Rolls-Royce Merlin aero engine famously powered the Spitfire, Hurricane, Mustang, Lancaster and Mosquito WW2 aircraft. It's been mounted on a trailer ...

Rolls-Royce plc - not to be confused with Rolls Royce Motor Cars - is probably best known for its airplane engines. Here's the story behind them.

The Rolls-Royce Merlin, a 27-liter V-12 initially developed in the 1930s and made famous as the most iconic engine of World War II, is a particularly nice thing to look at.