Mk IIa
Engine: Merlin XII
Wing: A
Armament: Eight .303 machine guns
Mk IIb
Engine: Merlin XII
Wing: B
Armament: Two 20mm cannon, later two 20mm cannon and four .303 machine guns
Mk IIc (later designated ASR II)
Engine: Merlin XX
Armament: As original aircraft
Wing: A or B, as original aircraft
Load: Smoke-marking bombs under the port wing, two flare shoots holding a dingy and a food container in the fuselage aft of the cockpit
Notes: The ASR II was a modification of existing Mk IIa and Bs withdrawn from front-line service, for the purpose of assisting aircrew downed at sea. A long-range version of the Mk IIa was produced with a 30 gallon tank under the port wing (JK Quill referred to it as the Mk IIa(LR)).