| Manufacturer | SPAD |
| Model | S.51 |
| Modification | S.51-2 |
| Country | France |
| Years | 1924 |
| Type | Fighter |
| Main rotor diameter | - |
| Tail rotor diameter | - |
| Wingspan | 9.47 m |
| Length | 6.45 m |
| Height | 3.10 m |
| Wing area | 24.27 m2 |
| Zero fuel weight | - |
| Empty weight | 990 kg |
| Maximum takeoff weight | - |
| Normal takeoff weight | 1360 kg |
| Flight duration | - |
| Engine | 1 Gnome & Rhone 9Ab Jupiter |
| Power | 1 x 420 HP |
| Thrust | - |
| Maximum speed | 245 km/h |
| Cruising speed | 225 km/h |
| Rate of climb | - |
| Practical range | - |
| Service ceiling | 8850 m |
| Hovering ceiling | - |
| Crew | - |
