Apr 192012
 
Stroop "X-Wing" Convertible Speed Planes (1935-9)

Robert C. Stroop is one of the many obscure Depression-era aeronautical inventors who created innovative if somewhat impractical designs that, for various reasons, never saw their full potential. The author has unable to uncover much about the background of Mr. Stroop apart from a few interesting facts. In surviving correspondence with the Army Air Corps, […]