| Manufacturer | Protopopescu |
| Model | PROTO-2 |
| Modification | PROTO-2 |
| Country | Romania |
| Years | 1924 |
| Type | Other |
| Main rotor diameter | - |
| Tail rotor diameter | - |
| Wingspan | 9.60 m |
| Length | 7.00 m |
| Height | 2.90 m |
| Wing area | 28.86 m2 |
| Zero fuel weight | - |
| Empty weight | 730 kg |
| Maximum takeoff weight | - |
| Normal takeoff weight | 1140 kg |
| Flight duration | - |
| Engine | 1 Hispano-Suiza |
| Power | 1 x 180 HP |
| Thrust | - |
| Maximum speed | 174 km/h |
| Cruising speed | 142 km/h |
| Rate of climb | 136 m/min |
| Practical range | - |
| Service ceiling | 5000 m |
| Hovering ceiling | - |
| Crew | - |
