https://en.wikipedia.org/wiki/Avro_571_Buffalo

General characteristics

• Crew: Two
• Length: 37 ft 3 in (11.35 m)
• Wingspan: 46 ft 0 in (14.02 m)
• Height: 14 ft 0 in (4.27 m)
• Wing area: 684 ft² (63.54 m²)
• Empty weight: 4,233 lb (1,920 kg)
• Loaded weight: 7,430 lb (3,370 kg)
• Powerplant: 1 × 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 × fixed, forward firing 0.303 in (7.7 mm) Vickers machine gun (not Mk II) and 1 × 0.303 in (7.7 mm) Lewis Gun in rear cockpit.
  

Either

• 1 × 18 in (457 mm) torpedo

or

• up to 3 × 520 lb (236 kg) bombs