Curtiss Model K
| Model K | |
|---|---|
| Role | Flying boat |
| National origin | United States of America |
| Manufacturer | Curtiss |
| First flight | January 1915 |
| Primary user | Imperial Russian Navy |
| Number built | at least 51 |
| Developed from | Curtiss Model F |
The Curtiss Model K, also known as the Model 4, was an American single-engined flying boat of World War I. It was an enlarged derivative of Curtiss's Model F and about 50 were built for export to the Imperial Russian Navy.