| Manufacturer | Zalewski |
| Model | WZ-XII Kogutek II |
| Modification | WZ-XII |
| Country | Poland |
| Years | 1937 |
| Type | Light aircraft |
| Main rotor diameter | - |
| Tail rotor diameter | - |
| Wingspan | 8.00 m |
| Length | 4.90 m |
| Height | 1.60 m |
| Wing area | 8.70 m2 |
| Zero fuel weight | - |
| Empty weight | 110 kg |
| Maximum takeoff weight | 220 kg |
| Normal takeoff weight | - |
| Flight duration | - |
| Engine | 1 WZ-18 |
| Power | 1 x 18 HP |
| Thrust | - |
| Maximum speed | 100 km/h |
| Cruising speed | 90 km/h |
| Rate of climb | - |
| Practical range | 800 km |
| Service ceiling | 1000 m |
| Hovering ceiling | - |
| Crew | 1 |
