The lightest palne was a dog plane
A British fighter plane used during World War 2
A Spitfire was a British fighter plane during World War 2 and a Messerschmitt was a German fighter.
One of the tiniest fighter planes of WWII; the ME-109. Over 33,000 were produced!
The length of time to assemble a fighter plane depended on the type of plane, the manufacturing plant and which nation was doing the building. At the beginning of the war, the Brits were turning out 400 fighter planes a month. The US could produce more than that a month but we had more types of fighters and companies. I have included a production graph for you on the web site below. This chart does include all types of planes though. Follow the links and references and you may find fighter plane production figures.
The highest scoring US plane was the P38 Lightning, with 40 kills.
SPAD was a French fighter plane in WW1. The Spitfire was a WWII fighter plane.
A fighter plane used in World War II
A Supermarine Spitfire was a British fighter plane used in world war 2.
A British fighter plane used during World War 2
Zero, a Japanese fighter plane.
Germany's Red Baron flew a peculiar type of fighter plane in World War One. It had three wings and was called the Fokker DR1 triplane.
Mitsubishi
A Supermarine Spitfire was a British fighter plane used in world war 2.
The Spitfire was used during world war 2 as a fighter plane
A26 fighter plane made by Douglas Aircraft, Long Beach, California
A Spitfire was a British fighter plane during World War 2 and a Messerschmitt was a German fighter.
Supermarine based it design for the Spitfire fighter plane on its earlier seaplane racer which competed for the Schneider Trophy before the war. [On the Axis side, the Macci Folgore was also based on their Schneider entry, but I am presuming the question is about the famous Allied fighter plane.]