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The Avro 531 Spider was a British fighter aircraft built by Avro during the First World War. It did not proceed past the prototype stage.

531 Spider and 538
Role	Fighter
Manufacturer	Avro
Designer	Clifton Britt
First flight	April 1918
Number built	2

Design and development

The Spider was a sesquiplane with a largely conventional configuration, but it used Warren truss-type interplane struts, hence the appellation "Spider". In tests, the aircraft demonstrated exceptional performance, handling, and pilot visibility. By the time it flew, the War Office had already selected the Sopwith Snipe for mass production.

A second, refined version, the Avro 531A, apparently never was completed, but some of its components seem to have been used to build a derivative design, the Avro 538. This had standard interplane struts and was intended as a racing aircraft. It was never used for this purpose, however, because it was discovered that it had a faulty wing spar, so the Avro firm used it as a hack instead from May 1919 to September 1920.[1]

Specifications (531)

Data from Avro Aircraft since 1908 [2]

General characteristics

• Crew: one pilot
• Length: 20 ft 6 in (6.25 m)
• Wingspan: 28 ft 6 in (8.69 m)
• Height: 7 ft 10 in (2.39 m)
• Wing area: 189 sq ft (17.6 m²)
• Empty weight: 963 lb (437 kg)
• Gross weight: 1,517 lb (688 kg)
• Powerplant: 1 × Clerget 9B air-cooled rotary piston engine , 130 hp (97 kW)

Performance

• Maximum speed: 120 mph (193 km/h, 100 kn)
• Range: 250 mi (400 km, 220 nmi) ^{[citation needed]}
• Service ceiling: 19,000 ft (5,970 m)
• Rate of climb: 1,250 ft/min (6.4 m/s)

Armament

• 1 × fixed, forward-firing .303 in (7.7 mm) Vickers machine gun

References

Wikimedia Commons has media related to Avro 531 Spider.

Notes

Bibliography

На других языках

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[de] Avro 531

Bei der Avro 531 Spider handelt es sich um ein Projekt für ein einsitziges Doppeldecker-Jagdflugzeug des britischen Herstellers Avro.

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- [en] Avro 531 Spider

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[fr] Avro 531 Spider

L'Avro 531 Spider est un avion de chasse monoplace de la Première Guerre mondiale.

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