| Manufacturer | Bristol |
| Model | Bullfinch |
| Modification | Bullfinch I |
| Country | United Kingdom |
| Years | 1923 |
| Type | Fighter |
| Main rotor diameter | - |
| Tail rotor diameter | - |
| Wingspan | 11.71 m |
| Length | 7.44 m |
| Height | 3.27 m |
| Wing area | 24.80 m2 |
| Zero fuel weight | - |
| Empty weight | 986 kg |
| Maximum takeoff weight | - |
| Normal takeoff weight | 1454 kg |
| Flight duration | 4 h |
| Engine | 1 Bristol Jupiter III |
| Power | 1 x 425 HP |
| Thrust | - |
| Maximum speed | 217 km/h |
| Cruising speed | 192 km/h |
| Rate of climb | - |
| Practical range | - |
| Service ceiling | 6096 m |
| Hovering ceiling | - |
| Crew | - |
