COVE

This image is a picture of a restored VS-300 helicopter designed by Igor Sikorsky in 1939. This helicopter was significant both in the United States and across the world. The VS-300 was the first practical helicopter produced in the U.S. and was the first helicopter in the world to perfect the use of a single main rotor and a tail rotor. This design was used by Sikorsky to create the R-4 helicopter in 1942.

The image was originally uploaded by Horatius on it.wikipedia on Nov. 7, 2008. On Dec. 16, 2009, the image appeared on wikimedia commons under the user FaleBot. This image is licensed under the Creative Commons Attribution 2.0 Generic license (https://creativecommons.org/licenses/by/2.0/deed.en). No changes were made to this image.