| Manufacturer | Dornier |
| Model | Do.A Libelle |
| Modification | Libelle I |
| Country | Germany |
| Years | 1921 |
| Type | Flying boat |
| Main rotor diameter | - |
| Tail rotor diameter | - |
| Wingspan | 8.50 m |
| Length | 7.20 m |
| Height | 2.30 m |
| Wing area | 14.00 m2 |
| Zero fuel weight | - |
| Empty weight | 400 kg |
| Maximum takeoff weight | 650 kg |
| Normal takeoff weight | - |
| Flight duration | - |
| Engine | 1 Siemens Sh 4 |
| Power | 1 x 55 HP |
| Thrust | - |
| Maximum speed | 120 km/h |
| Cruising speed | 90 km/h |
| Rate of climb | - |
| Practical range | - |
| Service ceiling | 1500 m |
| Hovering ceiling | - |
| Crew | 1 |
