1955 Scottish Aviation Twin Pioneer Srs3 This aircraft was the second pre-production prototype and first flew on 26th August 1956. Between January and March 1957 Swissair chartered the aircraft for short runway trial flights in the Alps, however no orders were placed and the aircraft was returned to Scottish Aviation. Tragically whilst on an African sales tour the aircraft crashed near Tripoli on 7th December 1957; all 6 crew and passengers were killed including David F. McIntyre, the co-founder of Scottish Aviation. Photographer unknown, scanned from an original image from my collection.