Avro 571 Buffalo

Type 571 Buffalo

Manufacturer: Avro
First flight: 1926
Status: Prototype
Number built: 1

The Avro 571 Buffalo was a prototype British carrier-based torpedo bomber biplane, designed and built by Avro in the 1920's. It was not selected for service, the Blackburn Ripon being ordered instead.

Design and development

The Avro 571 Buffalo was designed by Avro as a private venture to meet the requirements of Air Ministry Specification 21/23,for a two seat torpedo bomber and reconnaissance aircraft, intended to replace the Blackburn Dart. The prototype (G-EBNW) first flew at the Avro works at Hamble during 1926 . It was evaluated against the Blackburn Ripon and the Handley Page Harrow, but was found to have poor handling and was therefore rejected .

The prototype was therefore rebuilt as the Avro 572 Buffalo II, with new, all-metal wings, fitted with controllable Handley Page slats and a more powerful engine. In this form, the Buffalo was much improved. By this time however, the Ripon had been declared the competition winner .

Operational history

After it failed to be ordered into production, the Buffalo was converted into a seaplane in 1928 for the Air Ministry. As serial number N239, it was used for trials at the Marine Aircraft Experimental Establishment at Felixstowe.

Variants

Avro 571 Buffalo I Prototype powered by 450 hp (340 kW) Napier Lion Va engine. Avro 572 Buffalo II Rebuilt Buffalo I with new wing and powered by 530 hp (400 kW) Lion XIA.

Operators

United Kingdom

Air Ministry

Specifications (Buffalo II)

Data from Avro Aircraft since 1908

General characteristics

Crew: Two
Length: 37 ft 3 in (11.36 m)
Wingspan: 46 ft 0 in (14.02 m)
Height: 14 ft 0 in (4.27 m)
Wing area: 684 ft² (63.6 m²)
Empty weight: 4,223 lb (1,920 kg)
Loaded weight: 7,430 lb (3,377 kg)
Powerplant: 1x— Napier Lion XIA 12 cylinder broad arrow piston engine, 530 hp (395 kW)

Performance

Maximum speed: 135 mph (117 kn, 217 km/h)
Cruise speed: 105 mph (91 kn, 169 km/h)
Range: 650 mi (565 nmi, 1,046 km)
Service ceiling: 13,700 ft (4,180 m)
Rate of climb: 770 ft/min (3.9 m/s)
Wing loading: 10.9 lb/ft² (53.1 kg/m²)
Power/mass: 0.071 hp/lb (0.11 kW/kg)

Armament

1 x— fixed, forward firing 0.303 in (7.7 mm) Vickers machine gun (not Mk II) and 1 x— 0.303 in (7.7 mm) Lewis Gun in rear cockpit.

Either

1 x— 18 in (457 mm) torpedo

or

up to 3 x— 520 lb (236 kg) bombs

Comparable aircraft

Blackburn Ripon
Handley Page Harrow

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Source: WikiPedia