Avro 621 Tutor Technical Specifications
Service Year: 1933
Type: Two-Seat Basic Trainer Biplane Aircraft
National Origin: United Kingdom
Manufacturer(s): Avro / A. V. Roe - UK
Production Total: 852
Structural (Crew Space, Dimensions and Weights)
Operating Crew (Typical): 2
Overall Length: 26.38 feet (8.04 meters)
Overall Width: 33.99 feet (10.36 meters)
Overall Height: 9.58 feet (2.92 meters)
Weight (Empty): 1,843 lb (836 kg)
Weight (MTOW): 2,493 lb (1,131 kg)
Installed Power and Standard Day Performance
Propulsion: 1 x Armstrong Siddeley Lynx IVC radial engine developing 240 horsepower.
Maximum Speed: 120 mph (193 kph; 104 knots)
Maximum Range: 250 miles (402 km)
Service Ceiling: 16,001 feet (4,877 meters; 3.03 miles)
Armament / Mission Payload
Global Operators / Customers
Czechoslovakia; Canada; China; Denmark; Eire; Iraq; Ireland, Greece; Poland; South Africa; United Kingdom.
Model Variants (Including Prototypes)
621 Tutor - Base Series Designation; two-seat basic trainer.
621 Tutor II - Redesigned Wing Strut Arrangement.
646 Sea Tutor - Seaplane Derivative for Royal Navy; fitted with twin floats for naval operation.
PWS-18 - Polish designation for local licensed production of 621 Tutor models; some 40 examples produced.