While most of the planes in this section are original designs, these four at the top are the work of Roland Payens, a French aero-eng who did his best work between WWI and WWII. His sleek delta-wing design showed real promise, but before he got any into full production, the Germans invaded and his career was curtailed for the duration. After the liberation, Payens realized that aeronautics had leap-frogged over him and he designed no more planes.

The Russian Antonov ANT-25bis