Fairey Ferret radial-engine reconnaissance and general purpose aircraft. Three built. Fairey IIIF Two-seat general-purpose biplane or three-seat spotter-reconnaissance biplane, powered by a Napier Lion W-12 piston engine. Fairey IIIF Mk.I First production version of the Fairey IIIF. Three-seat spotter-reconnaissance biplane, powered by a Napier Lion VA W-12 piston engine, of composite wood and metal construction. 55 built. Fairey IIIF Mk.II Three-seat spotter-reconnaissance biplane, powered by a Napier Lion XIA W-12 piston engine, of composite wood and metal construction; 33 built. Fairey IIIF Mk.III Three-seat spotter-reconnaissance biplane, powered by a Napier Lion XIA piston engine, with a fabric-covered all-metal structure; 291 built. Fairey IIIF Mk.IV Two-seat general purpose biplane for the RAF, in both composite construction and all-metal versions. Powered by a Napier Lion XIA W-12 piston engine; 243 built. Fairey IIIF Mk.V The original designation of the Gordon. Fairey IIIF Mk.VI Original designation of the Seal. Queen IIIF Radio-controlled gunnery training aircraft; Three built. Fairey IIIM Civil version; three built. Fairey F.400 The first IIID (manufacturers serial number F.400) for the Portuguese Navy was delivered as a special long-range variant with an extended wing-span of 61 feet. It was also referred to as the Fairey Transatlantic and given the name Luzitania when it was used for an attempt to fly across the South Atlantic in 1922, stopping at Las Palmas, São Vicente, Cape Verde before being lost making a refuelling stop at the Saint Peter and Paul Rocks. Operators Royal Australian Air Force - IIID (Six originally ordered by the Royal Australian Navy but transferred to the newly formed air force) Argentine Naval Aviation - Purchased six IIIF MkIIIM (Special) powered by 450 hp (336 kW) Lorraine Dietrich Ed12 engine in 1928. They entered service in 1929. The remaining aircraft were re-engined with Armstrong Siddeley Panthers in 1935, with the last aircraft being retired in 1942. Royal Canadian Air Force - One Fairey IIIC aircraft, one IIIF aircraft Chilean Air Force - IIIF Chilean Navy - IIIF Egypt bought a single IIIF in 1939. Hellenic Air Force Hellenic Navy - IIIF Irish Air Corps - purchased a single IIIF MkII in 1928, being destroyed in a crash in 1934. Netherlands Naval Aviation Service - IIID Royal New Zealand Air Force - New Zealand purchased two IIIF MkIIIMs in 1928, adding another in 1933, with one remaining in use in 1940. Portuguese Air Force Portuguese Naval Aviation - IIID Soviet Air