| Manufacturer | Parnall |
| Model | Gnu |
| Modification | Gnu |
| Country | United Kingdom |
| Years | 1919 |
| Type | Light aircraft |
| Main rotor diameter | - |
| Tail rotor diameter | - |
| Wingspan | 11.61 m |
| Length | 7.88 m |
| Height | 3.00 m |
| Wing area | - |
| Zero fuel weight | - |
| Empty weight | - |
| Maximum takeoff weight | 1520 kg |
| Normal takeoff weight | - |
| Flight duration | - |
| Engine | 1 Le Rhone |
| Power | 1 x 110 HP |
| Thrust | - |
| Maximum speed | 150 km/h |
| Cruising speed | 125 km/h |
| Rate of climb | - |
| Practical range | 483 km |
| Service ceiling | - |
| Hovering ceiling | - |
| Crew | 1 |