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Avro 571

Avro 572 Buffalo

 

avro571buffalo

 

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.

 

Buffalo Mk I
Engine: 1 x 450hp Napier Lion VA 12-cylinder water-cooled in-line
Take-off weight: 3373 kg / 7436 lb
Empty weight: 1922 kg / 4237 lb
Wingspan: 14.02 m / 46 ft 0 in
Length: 10.97 m / 36 ft 0 in
Height: 4.19 m / 14 ft 9 in
Wing area: 63.55 sq.m / 684.05 sq ft
Max. speed: 217 km/h / 135 mph
Ceiling: 3597 m / 11800 ft
Range: 998 km / 620 miles
Crew: 2
Armament: 1 × fixed, forward firing 0.303 in (7.7 mm) Vickers machine gun / 1 × 0.303 in (7.7 mm) Lewis Gun in rear cockpit.
Bombload: 1 torpedo or 3 x 235kg bombs

 

Avro 572 Buffalo II
Engine: 530 hp (400 kW) Lion XIA.
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)
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/sq.m)
Power/mass: 0.071 hp/lb (0.11 kW/kg)
Crew: Two
Armament: 1 × 0.303 in (7.7 mm) Lewis Gun in rear cockpit.
Bombload: 1 × 18 in (457 mm) torpedo or up to 3 × 520 lb (236 kg) bombs

 

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