| Manufacturer | Liore-et-Olivier |
| Model | LeO H-257(258) |
| Modification | H-258 |
| Country | France |
| Years | 1932 |
| Type | Flying boat |
| Main rotor diameter | - |
| Tail rotor diameter | - |
| Wingspan | 25.50 m |
| Length | 17.54 m |
| Height | 6.80 m |
| Wing area | 133.50 m2 |
| Zero fuel weight | - |
| Empty weight | 4800 kg |
| Maximum takeoff weight | - |
| Normal takeoff weight | 9830 kg |
| Flight duration | - |
| Engine | 2 Gnome-Rhone 14Knrs/Kors |
| Power | 2 x 870 HP |
| Thrust | - |
| Maximum speed | 240 km/h |
| Cruising speed | 180 km/h |
| Rate of climb | - |
| Practical range | 1500 km |
| Service ceiling | 6500 m |
| Hovering ceiling | - |
| Crew | - |
