Sopwith 1½ Strutter
The Sopwith Strutter is a British single- or two-seat multi-role biplane aircraft of the First World War. It was the first British two-seat tractor fighter and the first British aircraft to enter service with a synchronised machine gun. It was given the name Strutter because of the long and short cabane struts that supported the top wing. The type was operated by both British air services and was in widespread but lacklustre service with the French . Design and development [[File:An aeroplane leaving the deck of the Australia on a reconnaissance trip (13960807682).jpg|thumb|Sopwith 1 1/2 Strutter biplane aircraft taking off from a platform built on top of HMAS Australias midships 'Q' turret. 1918]] In December 1914, the Sopwith Aviation Company designed a small, two-seat biplane powered by an Gnome rotary engine, which became known as the "Sigrist Bus" after Fred Sigrist, the Sopwith works manager. The Sigrist Bus first flew on 5 June 1915 and although it set a new British altitude record on the day of its first flight, only one was built, serving as a company runabout.Jarrett 2009, p. 56. The Sigrist Bus formed the basis for a new, larger, fighter aircraft, the Sopwith LCT (Land Clerget Tractor),