| Manufacturer | Huarte Mendicoa |
| Model | HM-1 |
| Modification | HM-1B |
| Country | Spain |
| Years | 1942 |
| Type | Other |
| Main rotor diameter | - |
| Tail rotor diameter | - |
| Wingspan | 9.65 m |
| Length | 7.65 m |
| Height | 2.20 m |
| Wing area | - |
| Zero fuel weight | - |
| Empty weight | 620 kg |
| Maximum takeoff weight | 850 kg |
| Normal takeoff weight | - |
| Flight duration | - |
| Engine | 1 Elizalde G-IV-B Tigre |
| Power | 1 x 150 HP |
| Thrust | - |
| Maximum speed | 230 km/h |
| Cruising speed | 195 km/h |
| Rate of climb | - |
| Practical range | 700 km |
| Service ceiling | 5000 m |
| Hovering ceiling | - |
| Crew | 2 |
