Type 510
Prototype developed from the Vickers Supermarine Attacker still with a tailwheel undercarriage but with swept wings and tail.
Type 517
Prototype fitted with a variable incidence tailplane.
Type 535
Prototype fitted with a nosewheel undercarriage.
Swift F.Mk 1
Single-seat fighter aircraft, fitted with a fixed variable-incidence tailplane, powered by a Rolls-Royce Avon RA-7/109 turbojet engine without an afterburner, armed with two 30-mm ADEN cannons.
Swift F.Mk 2
Single-seat fighter aircraft, armed with four 30-mm ADEN cannons.
Swift F.Mk 3
Single-seat fighter aircraft, powered by an afterburning Rolls-Royce Avon RA-7A/114 turbojet engine, armed with two 30-mm ADEN cannons.
Swift F.Mk 4
Single-seat fighter aircraft, fitted with a variable-incidence tailplane.
Swift FR.Mk 5
Single-seat tactical-reconnaissance aircraft, fitted with a lengthened nose to accommodate three cameras, equipped with a frameless cockpit canopy, powered by a Rolls-Royce Avon 114 turbojet engine, armed with two 30-mm ADEN cannons.
Swift F.Mk 7
Single-seat fighter aircraft, fitted with a lengthened nose to accommodate a radar, armed with four 30-mm ADEN cannons and four Fairey Fireflash air-to-air missiles.