Gloster Gladiator
The Gloster Gladiator was a biplane fighter, used by the Royal Air Force and the Royal Navy, during World War II. The aircraft had 4x.303 Browning[?] machine guns and a top speed of ~400km per hour.
See also:

Gloster Gladiator, England, 2002.
Larger version
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Notable Gloster Gladiator Pilots
References