The first Farnborough show. The second Marathon prototype did not have a central tailfin initially. The Hastings on the left should be TG527 according to a spotter log. Second row, Short Sealand G-AIVX, Bristol Brigand RH809 and Bristol Freighter G-AIFO. Behind the Brigand, Firebrand EK844 and Lincoln RE292. Behind that, Viscount prototype G-AHRF and Nene Viking G-AJPH. Other aircraft include a Lancaster with a Dart turboprop up its nose, a Lincoln with Theseus outer engines, and a Lancastrian with Avon jet outer engines, VM732. Behind the Lancastrian is a Cierva Air Horse helicopter. Photo from: Nationaal Archief (Netherlands)

Work on a replacement for the Walrus and Sea Otter began in 1940 but the Seagull, not to be confused with the 1921 Supermarine Seagull, did not fly until 1948, when its rescue role was being taken over by helicopters, and only two prototypes were completed. The Griffon engine drove contra-rotating propellers. PA143 appeared at the first Farnborough show in 1948. Photo from: Vickers-Armstrongs