The Supermarine Spitfire attained a top speed of 586 Km/h. Using the famous Rolls-Royce Merlin, liquid cooled 12 cylinder engine that produced more than 1000 horsepower. The MkI Spitfire was armed with eight 7.7mm machine guns.
Beginning in 1937, The British Royal Air Force used a two-tone camouflage of Dark Green and Dark Earth on their aircraft upper surface. Beginning in June 1940 a greenish gray color, called Sky, was appliedunder surface.