| Manufacturer | Boulton Paul |
| Model | Defiant |
| Modification | Defiant Mk.I |
| Country | United Kingdom |
| Years | 1937 |
| Type | Fighter |
| Main rotor diameter | - |
| Tail rotor diameter | - |
| Wingspan | 11.99 m |
| Length | 10.77 m |
| Height | 3.45 m |
| Wing area | 23.23 m2 |
| Zero fuel weight | - |
| Empty weight | 2757 kg |
| Maximum takeoff weight | 3902 kg |
| Normal takeoff weight | 3773 kg |
| Flight duration | - |
| Engine | 1 Rolls-Royce Merlin III |
| Power | 1 x 1030 HP |
| Thrust | - |
| Maximum speed | - |
| Cruising speed | 416 km/h |
| Rate of climb | - |
| Practical range | 748 km |
| Service ceiling | 9251 m |
| Hovering ceiling | - |
| Crew | 2 |
