Percival Proctor

The Percival Proctor was a British radio trainer and communications aircraft of the Second World War.

The Proctor was a single-engine, low wing monoplane with seating for three or four, depending on the model.


P.28 Proctor I

Three-seat dual-control communications and radio / navigation trainer for the Royal Air Force.

P.28 Proctor IA

Three-seat dual-control deck landing and radio trainer for the Royal Navy / Fleet Air Arm with dinghy stowage and naval instruments.

P.29 Proctor

One aircraft converted to a light-bomber to carry 16 20lb bombs under the wings.

P.30 Proctor II

Three-seat radio trainer.

Proctor IIAs were used by the Royal Navy.

P.34 Proctor III

Three seat radio trainer for Bomber Command radio operators.

P.31 Proctor IV

Four-seat radio trainer with enlarged fuselage.

Proctor 5

Four-seat civil light aircraft.

RAF designation was Proctor C Mk 5

Proctor 6

Floatplane version, 1 built.


A Proctor IV fuselage was modified with a new-wing built by Heston Aircraft as the Youngman-Baynes High Lift Monoplane.



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28 ft 2 in (8.59 m)


39 ft 6 in (12.04 m)


7 ft 3 in (2.21 m)

Wing area

202 sq ft (18.8 m2)


RAF 48 modified

Empty weight

2,340 lb (1,061 kg)

Gross weight

3,500 lb (1,588 kg)


1 × de Havilland Gipsy Queen II 6-cylinder air-cooled inverted in-line piston engine, 210 hp (160 kW)


2-bladed variable-pitch propeller


Maximum speed

157 mph (253 km/h, 136 kn)

Cruise speed

135 mph (217 km/h, 117 kn)

Stall speed

48 mph (77 km/h, 42 kn)


500 mi (800 km, 430 nmi)

Service ceiling

14,000 ft (4,300 m)

Rate of climb

700 ft/min (3.6 m/s).



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