This image was acquired from
wikimedia. It was marked as Public Domain or CC0 and is free to use. To verify, go to the source and check the information there.
Sikorsky YHA USAF. Description Sikorsky YHA Source USAF Museum PDUSGov Sikorsky museum aircraft Helicopters at the National Museum of the United States Air Force
Page 2023 Free-images.com. All images are Public Domain