ORIGINAL: P-51B
Not the Jenny.
Keeping with the current WWI theme;
1. Originally conceived as a fighter, it was found inadequate for that role.
2. Production of the aircraft continued well after the war, with the final examples delivered in 1928.
3. Ten variants were produced.
4. Its impressive speed, range and operational ceiling, with its top speed making it one of the fastest (if not the fastest) of all Allied combat aircraft in World War I, gave it the right properties to be an excellent reconnaissance aircraft and even light bomber.
Originally conceived as a two seater fighter? As in the DH-4? Everything fits except the two seat part. The only thing with two seats that really deserved the "fighter" moniker was the Bristol Fighter, IMHO. Thanks; Ernie P.