| Manufacturer | Instytut Lotnictwa |
| Model | JK-1 Trzmiel |
| Modification | JK-1 |
| Country | Poland |
| Years | - |
| Type | Helicopter |
| Main rotor diameter | 7.00 m |
| Tail rotor diameter | - |
| Wingspan | - |
| Length | 2.95 m |
| Height | 2.14 m |
| Wing area | - |
| Zero fuel weight | - |
| Empty weight | 140 kg |
| Maximum takeoff weight | 340 kg |
| Normal takeoff weight | - |
| Flight duration | 15 h |
| Engine | 2 РД |
| Power | - |
| Thrust | 2 x 12.5 kN |
| Maximum speed | 131 km/h |
| Cruising speed | - |
| Rate of climb | - |
| Practical range | - |
| Service ceiling | 5500 m |
| Hovering ceiling | - |
| Crew | 1 |
