Avro 621 Tutor

The Avro Type 621 Tutor was a two seat British radial engined biplane from the interwar period.

It was a simple but rugged basic trainer that was used by the Royal Air Force as well as many other air arms worldwide.

Variants

Avro 621 Trainer

(Mongoose powered) 

Two seat primary training aircraft.

Avro 621 Tutor

(Lynx powered) 

Two seat primary training aircraft.

Avro 621 Tutor II 

One aircraft was modified into a two bay biplane.

Avro 621 survey version 

Three built and served in what was then Tanganyika.

Avro 646 Sea Tutor 

Two seat seaplane fitted with twin floats.

Specifications

Crew

2

Length

26 ft 4.5 in (8.039 m)

Wingspan

34 ft 0 in (10.36 m)

Height

9 ft 7 in (2.92 m)

Wing area

301 sq ft (28.0 m2)

Empty weight

1,844 lb (836 kg)

Gross weight

2,493 lb (1,131 kg)

Powerplant

1 × Armstrong Siddeley Lynx IVC, 7 cylinder air cooled radial piston engine,

240 hp (180 kW)

Propellers

2 bladed fixed pitch propeller

Performance

Maximum speed

120 mph (190 km/h, 100 kn)

Cruise speed

97 mph (156 km/h, 84 kn)

Range

250 mi (400 km, 220 nmi)

Service ceiling

16,000 ft (4,900 m)

Rate of climb

910 ft/min (4.6 m/s).