| Manufacturer | Heinkel |
| Model | HE.18 |
| Modification | HE.18 |
| Country | Germany |
| Years | 1925 |
| Type | Light aircraft |
| Main rotor diameter | - |
| Tail rotor diameter | - |
| Wingspan | 11.10 m |
| Length | 7.20 m |
| Height | - |
| Wing area | 17.47 m2 |
| Zero fuel weight | - |
| Empty weight | 380 kg |
| Maximum takeoff weight | 600 kg |
| Normal takeoff weight | - |
| Flight duration | - |
| Engine | 1 Siemens |
| Power | 1 x 75 HP |
| Thrust | - |
| Maximum speed | 150 km/h |
| Cruising speed | 140 km/h |
| Rate of climb | 168 m/min |
| Practical range | - |
| Service ceiling | - |
| Hovering ceiling | - |
| Crew | 2 |
