The Sikorsky S-17 was a Russian single engine aircraft built at the Russian Baltic Railroad Car Works in Petrograd while Igor Sikorsky was the chief engineer of the aircraft manufacturing division.
The Sikorsky S-17 was a Russian single engine aircraft built at the Russian Baltic Railroad Car Works in Petrograd while Igor Sikorsky was the chief engineer of the aircraft manufacturing division. (en)
The Sikorsky S-17 was a Russian single engine aircraft built at the Russian Baltic Railroad Car Works in Petrograd while Igor Sikorsky was the chief engineer of the aircraft manufacturing division. (en)