"Miss Velma" & Ferocious Frankie" are the 2 resident P-51 Mustang aircraft at Duxford
When North American aviation first produced these aircraft they installed the same American Alison engine of the P-40 aircraft
This proved to be less than satisfactory at higher altitudes & was then replaced with the Rolls Royce Merlin engine
of the Supermarine Spitfire
The result was a formidable high performance fighter
The wing was a lamina flow design than was very efficient when flying, & therefore had a long range for the fuel load.
These aircraft were also employed as fighter escorts (when they were installed with additional drop fuel tanks) for the B-17 Flying Fortress bombers flying on missions to Germany & back
This was the only escort fighter at that time to give to give bomber protection for the complete mission
Big Thank you to M_squared & Brian65 for their "User Awards" on my previous upload "Black Crowned Night Heron"
& also everyone else for C & Cs much appreciated
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