| Manufacturer | Latecoere |
| Model | Late 21 |
| Modification | Late 21bis |
| Country | France |
| Years | 19 |
| Type | Flying boat |
| Main rotor diameter | - |
| Tail rotor diameter | - |
| Wingspan | 22.00 m |
| Length | 17.95 m |
| Height | 4.85 m |
| Wing area | 88.00 m2 |
| Zero fuel weight | - |
| Empty weight | 3530 kg |
| Maximum takeoff weight | 5730 kg |
| Normal takeoff weight | - |
| Flight duration | - |
| Engine | 2 Gnome-Rhone Jupiter 9Ab |
| Power | 2 x 420 HP |
| Thrust | - |
| Maximum speed | 172 km/h |
| Cruising speed | 144 km/h |
| Rate of climb | - |
| Practical range | 800 km |
| Service ceiling | 3600 m |
| Hovering ceiling | - |
| Crew | 3 |
