This image was acquired from
flickr. It was marked as Public Domain or CC0 and is free to use. To verify, go to the source and check the information there.
Keywords from Image Description:
naca nasa nasa langley research center nasalangleyresearchcenter airplane aeronautics blackandwhite monochrome black and white Description November View of the VoughtSikorsky airplane mounted in the Full Scale Wind Tunnel. Shows the prototype ampquotZimmer Skimmerampquot or ampquotFlying Pancakeampquot on which the XFU was based.