U.S. Patent Specifications

Abstract

In an aircraft body of truncated but otherwise streamline form, terminating in an opening defining a generally vertical plane extending transversely of the direction of flight, a gunner's support within the aircraft body, a shell closing such opening, and disposed in continuation of the aircraft body, exposing, in such continuation, a shell surface substantially hemispherical in contour, to restore the streamline form, means upon the aircraft body, within such opening, and complemental means on the shell interengaged therewith, co‐operating for guiding the shell to swing about an axis disposed diametrically of the shell's hemispherical contour and substantially parallel to the terminus of the aircraft body, and a gun mount supported for movement conjointly with the shell, and adapted to support a gun projecting from the shell for aiming movement with respect to the shell by a gunner supported upon the support within the aircraft body.

Citation

(1940), "U.S. Patent Specifications", Aircraft Engineering and Aerospace Technology, Vol. 12 No. 11, pp. 349-350. https://doi.org/10.1108/eb030719