The Swordfish Mk I is a Rank I British biplane with a battle rating of 1.0.
A single-engine biplane of mixed construction, the Fairey Swordfish was developed initially as a Torpedo Bomber/Spotter/Reconnaissance aircraft. The origins of the Swordfish lay in the TSR I prototype of 1933 which, after being lost in an accident, was replaced by the TSR II which first flew on April 17th 1934. The first order for 86 aircraft was placed in April 1935 and in July 1936 the first Swordfish entered service with 825 Naval Air Squadron of the Fleet Air Arm.