| Manufacturer | FFG |
| Model | B9 Berlin |
| Modification | B-9 |
| Country | Germany |
| Years | 1943 |
| Type | Experimental aircraft |
| Main rotor diameter | - |
| Tail rotor diameter | - |
| Wingspan | 9.40 m |
| Length | 9.06 m |
| Height | 2.32 m |
| Wing area | 11.90 m2 |
| Zero fuel weight | - |
| Empty weight | 940 kg |
| Maximum takeoff weight | - |
| Normal takeoff weight | 1115 kg |
| Flight duration | - |
| Engine | 2 Hirth HM 500 |
| Power | 2 x 105 HP |
| Thrust | - |
| Maximum speed | 250 km/h |
| Cruising speed | - |
| Rate of climb | - |
| Practical range | 400 km |
| Service ceiling | 4000 m |
| Hovering ceiling | - |
| Crew | 1 |
