| Manufacturer | Boulton Paul |
| Model | Boulton-Paul P.111 |
| Modification | P.111 |
| Country | United Kingdom |
| Years | 1950 |
| Type | Experimental aircraft |
| Main rotor diameter | - |
| Tail rotor diameter | - |
| Wingspan | 10.21 m |
| Length | 7.95 m |
| Height | 3.81 m |
| Wing area | 26.94 m2 |
| Zero fuel weight | - |
| Empty weight | 3410 kg |
| Maximum takeoff weight | - |
| Normal takeoff weight | 4595 kg |
| Flight duration | - |
| Engine | 1 ТРД Rolls-Royce Nene RN.2 Mk 3 |
| Power | - |
| Thrust | 1 x 2313 kN |
| Maximum speed | 1043 (M=0.98) km/h |
| Cruising speed | - |
| Rate of climb | - |
| Practical range | - |
| Service ceiling | 10670 m |
| Hovering ceiling | - |
| Crew | 1 |
