| Manufacturer | Sikorsky |
| Model | S-33 Messenger |
| Modification | S-33 |
| Country | USA |
| Years | 1925 |
| Type | Light aircraft |
| Main rotor diameter | - |
| Tail rotor diameter | - |
| Wingspan | - |
| Length | 5.49 m |
| Height | - |
| Wing area | 14.90 m2 |
| Zero fuel weight | - |
| Empty weight | 400 kg |
| Maximum takeoff weight | 630 kg |
| Normal takeoff weight | - |
| Flight duration | - |
| Engine | 1 Rhone |
| Power | 1 x 120 HP |
| Thrust | - |
| Maximum speed | 210 km/h |
| Cruising speed | - |
| Rate of climb | - |
| Practical range | 640 km |
| Service ceiling | 5400 m |
| Hovering ceiling | - |
| Crew | 2 |
