| Manufacturer | Parnall |
| Model | Parnall G.4-31 |
| Modification | G.4/31 |
| Country | United Kingdom |
| Years | 1934 |
| Type | Other |
| Main rotor diameter | - |
| Tail rotor diameter | - |
| Wingspan | 17.37 m |
| Length | 11.00 m |
| Height | 4.57 m |
| Wing area | 63.82 m2 |
| Zero fuel weight | - |
| Empty weight | - |
| Maximum takeoff weight | - |
| Normal takeoff weight | 3084 kg |
| Flight duration | - |
| Engine | 1 Bristol Pegasus IM3 |
| Power | 1 x 630 HP |
| Thrust | - |
| Maximum speed | 266 km/h |
| Cruising speed | 202 km/h |
| Rate of climb | - |
| Practical range | - |
| Service ceiling | - |
| Hovering ceiling | - |
| Crew | 2 |
