Avro 510

The Avro 510 was a two-seat racing seaplane designed by Avro to compete in the 1914 Circuit of Britain Race. It was a conventional two-bay biplane of greatly uneven span, equipped with two large central floats and two outriggers. The race was called off at the outbreak of the First World War, but the British Admiralty was aware of the type and ordered five examples, with modified floats and tail. In service, these proved completely unsuitable, and it was discovered that with a second person aboard, the aircraft could barely fly. In October 1915, the 510s in service were sent to Supermarine for modification and improvement, but by March the following year all were removed from service.^[1]

510
General information
Type	Racing and patrol seaplane
National origin	United Kingdom
Manufacturer	Avro
Primary user	Royal Naval Air Service
Number built	6
History
First flight	July 1914
Variants	Avro 519

Specifications

Data from Avro Aircraft since 1908^[2]

General characteristics

• Crew: 1
• Capacity: 1
• Length: 38 ft 0 in (11.58 m)
• Wingspan: 63 ft 0 in (19.20 m)
• Wing area: 564 sq ft (52.4 m²)
• Empty weight: 2,080 lb (943 kg)
• Gross weight: 2,800 lb (1,270 kg)
• Powerplant: 1 × Sunbeam Crusader V-8 water-cooled piston engine, 150 hp (110 kW) ^[a]
• Propellers: 2-bladed fixed-pitch propeller

Performance

• Maximum speed: 70 mph (110 km/h, 61 kn)
• Endurance: 4 hours 30 minutes
• Time to altitude: 41⁄2 minutes to 1,000 ft (305 m)

See also

Related development

• Avro 519

Notes

^a Most sources give the powerplant of the 510 as a Sunbeam Nubian, an engine that would not yet exist until all the 510s had been withdrawn from service in 1916. The Wolverhampton Museum of Industry website cites Eric Brew's Sunbeam Aero Engines and identifies the 510's engine as a Crusader.^[3]