|Type 571 Buffalo|
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.
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.
- 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.
Specifications (Buffalo II)
Data from Avro Aircraft since 1908 
- 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: 1 × Napier Lion XIA 12-cylinder broad-arrow piston engine, 530 hp (395 kW)
- 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)
- 1 × 18 in (457 mm) torpedo
- up to 3 × 520 lb (236 kg) bombs
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- Jackson 1990, p.229.
- Mason 1994, p. 157.
- Jackson 1990, pp. 231–232.
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