Manufacturer | Bartel |
Model | BM-4 |
Modification | BM-4a |
Country | Poland |
Years | 1927 |
Type | Other |
Main rotor diameter | - |
Tail rotor diameter | - |
Wingspan | 10.17 m |
Length | 7.22 m |
Height | 2.93 m |
Wing area | 25.00 m2 |
Zero fuel weight | - |
Empty weight | 538 kg |
Maximum takeoff weight | - |
Normal takeoff weight | 791 kg |
Flight duration | - |
Engine | 1 Le Rhone C |
Power | 1 x 80 HP |
Thrust | - |
Maximum speed | 125 km/h |
Cruising speed | 91 km/h |
Rate of climb | - |
Practical range | 315 km |
Service ceiling | 2820 m |
Hovering ceiling | - |
Crew | 2 |