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The Grahame-White Type XIII was a racing seaplane built to compete in the Daily Mails 1914 Circuit of Britain air race, to be flown by company founder Claude Grahame-White. It was a conventional single-bay biplane with staggered wings of equal span braced by N-struts. The forward fuselage featured a highly streamlined aluminium engine cowling, with the rest of the construction being wood and fabric. The landing gear consisted of twin pontoons, with a small third pontoon carried beneath the tail.

Type XIII
Role	Racing seaplane Type of aircraft
National origin	United Kingdom
Manufacturer	Grahame-White Aviation Company
Designer	J. D. North
First flight	1914
Number built	1

The Circuit of Britain was cancelled due to the outbreak of World War I, and the sole Type XIII built was later converted into a landplane.

Specifications

General characteristics

• Crew: One pilot
• Capacity: 1 passenger
• Length: 27 ft 3 in (8.31 m)
• Wingspan: 27 ft 10 in (8.48 m)
• Wing area: 290 sq ft (26.9 m²)
• Empty weight: 1,040 lb (470 kg)
• Gross weight: 1,800 lb (820 kg)
• Powerplant: 1 × Gnome Monosoupape , 100 hp (75 kW)

Performance

• Maximum speed: 85 mph (136 km/h, 74 kn)
• Endurance: 5 hours 30 minutes

References

• Taylor, Michael J. H. (1989). Jane's Encyclopedia of Aviation. London: Studio Editions. pp. 431–32.
• "The "Round Britain" Machines". Flight: 838. 7 August 1914.
• "The "Round Britain" Machines: The Grahame-White Tractor Biplane". Flight: 901–03. 23 August 1914.

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