The cookie settings on this website are adjusted to allow all cookies so that you have the very best experience. If you continue without changing your cookie settings, we'll assume that you are happy to receive all cookies on our website. However, if you would like to, you can change your settings at any time using the Change cookie settings link in the Special menu.
The introduction of the Merlin engine transformed the initially mediocre P-51 Mustang into a world-class fighting machine with the iconic P-51D, all but supplanting other types of fighters used by the United States Eighth Air Force in Britain. By May 1945, Mustangs had flown 213,873 stories and claimed 4,950 enemy aircraft destroyed.