The Sikorsky S-15 was a single engine light bomber

floatplane A floatplane is a type of seaplane with one or more slender floats mounted under the fuselage to provide buoyancy. By contrast, a flying boat uses its fuselage for buoyancy. Either type of seaplane may also have landing gear suitable for land, ...

built in 1913 at the Russian Baltic Railroad Car Works while

Igor Sikorsky Igor Ivanovich Sikorsky, (25 May 1889 – 26 October 1972) was a Russian-American aviation pioneer in both helicopters and fixed-wing aircraft. His first success came with the Sikorsky S-2, the second aircraft of his design and construc ...

was the chief engineer of the aircraft manufacturing division. Similar in design to the

Sikorsky S-10 The Sikorsky S-10 was a Russian military twin-float seaplane that served with the Russian Navy's Baltic Fleet from the summer of 1913 to 1915. After Igor Sikorsky built the successful Sikorsky S-6 for the Russian military, he tried to build anoth ...

, only one example of this biplane was produced.

References

{{Sikorsky Aircraft S-15 Biplanes S-15 Single-engined tractor aircraft Aircraft first flown in 1913