The Stipa-Caproni was an experimental Italian aircraft that featured a hollow, barrel-shaped fuselage. It was designed by Luigi Stipa and built by the aircraft manufacturer Caproni.
https://s3-us-west-1.amazonaws.com/h...rel_plane2.jpg
https://s3-us-west-1.amazonaws.com/h...rel_plane1.jpg
https://s3-us-west-1.amazonaws.com/h...rrel_plane.jpg
Previously:
https://www.homemadetools.net/forum/...147#post134516
https://www.homemadetools.net/forum/...461#post122578
https://www.homemadetools.net/forum/...137#post134465
https://www.homemadetools.net/forum/...160#post134559
https://www.homemadetools.net/forum/...118#post130213