Sikorsky S-3
| S-3 | |
|---|---|
| Sikorsky S-3 near Kiev Russia Empire December 1910 | |
| Role | Experimental |
| National origin | Russian Empire |
| Designer | Igor Sikorsky |
| First flight | December 1910 |
| Number built | 1 |
| Developed from | Sikorsky S-2 |
| Developed into | Sikorsky S-4 |
The Sikorsky S-3 was an early Russian single seat biplane design by Igor Sikorsky. Work on the machine started in July 1910 and was completed in late November.