| Manufacturer | Zala Aero |
| Model | Zala 421-04 |
| Modification | Zala 421-04 |
| Country | Russia |
| Years | 200 |
| Type | Unmanned aircraft |
| Main rotor diameter | - |
| Tail rotor diameter | - |
| Wingspan | 2.23 m |
| Length | 1.05 m |
| Height | - |
| Wing area | - |
| Zero fuel weight | - |
| Empty weight | - |
| Maximum takeoff weight | 7.90 kg |
| Normal takeoff weight | - |
| Flight duration | 1.5 h |
| Engine | 1 |
| Power | 1 x 20 HP |
| Thrust | - |
| Maximum speed | 130 km/h |
| Cruising speed | 70 km/h |
| Rate of climb | - |
| Practical range | - |
| Service ceiling | 3000 m |
| Hovering ceiling | - |
| Crew | - |
