| Manufacturer | Ikarus |
| Model | S.451M |
| Modification | S.451 |
| Country | Yugoslavia |
| Years | 1949 |
| Type | Other |
| Main rotor diameter | - |
| Tail rotor diameter | - |
| Wingspan | 7.90 m |
| Length | 8.05 m |
| Height | 2.40 m |
| Wing area | 16.90 m2 |
| Zero fuel weight | - |
| Empty weight | 1678 kg |
| Maximum takeoff weight | 2435 kg |
| Normal takeoff weight | - |
| Flight duration | - |
| Engine | 1 ТРД Turbomeca Marbore II |
| Power | - |
| Thrust | 1 x 3.91 kN |
| Maximum speed | 800 km/h |
| Cruising speed | 721 km/h |
| Rate of climb | - |
| Practical range | 760 km |
| Service ceiling | 12800 m |
| Hovering ceiling | - |
| Crew | 2 |
