Sikorsky S-13 and S-14 explained

The Sikorsky S-13 and S-14 were proposed aircraft designs that would have been built at the Russian Baltic Railroad Car Works while Igor Sikorsky was the chief engineer of the aircraft manufacturing division. Due to engine availability problems the machines were never completed.[1]

Notes and References

  1. Web site: The Russian Years. www.sikorskyarchives.com. 27 April 2017.