Airplane with Piston Engine Mounted Under the Fuselage

[hesham]

Hi,

https://books.google.com.eg/books?id=6tq4BgAAQBAJ&pg=PA561&dq=dirigible-plane&hl=ar&sa=X&ved=0ahUKEwiJ7P21qbfQAhUDOCYKHXELDUI4FBDoAQg9MAM#v=onepage&q&f=false

 

[Schneiderman]

Not a theoretical or speculative project, it is just an illustration to show why mounting an engine in that position would be a bad idea.