| Manufacturer | Persival |
| Model | Proctor |
| Modification | Proctor Mk III |
| Country | United Kingdom |
| Years | 1939 |
| Type | Other |
| Main rotor diameter | - |
| Tail rotor diameter | - |
| Wingspan | 12.04 m |
| Length | 8.59 m |
| Height | 2.98 m |
| Wing area | 18.77 m2 |
| Zero fuel weight | - |
| Empty weight | 1075 kg |
| Maximum takeoff weight | 1588 kg |
| Normal takeoff weight | - |
| Flight duration | - |
| Engine | 1 de Havilland Gipsy Queen |
| Power | 1 x 210 HP |
| Thrust | - |
| Maximum speed | 257 km/h |
| Cruising speed | 218 km/h |
| Rate of climb | - |
| Practical range | 805 km |
| Service ceiling | 4265 m |
| Hovering ceiling | - |
| Crew | - |
