Node60
Prince
It is possible to offer some more planes of the 1930th years?
Russian mass interwar heavy TB-3 bomber (aka ANT-6):
https://en.wikipedia.org/wiki/Tupolev_TB-3
Huge, not having of analogs for that time, the K-7 bomber (flying prototype):
https://en.wikipedia.org/wiki/Kalinin_K-7
https://www.google.ru/search?q=%D0%BA-7+bomber&newwindow=1&client=opera&hs=1J8&channel=suggest&tbm=isch&oq=%D0%BA-7+bomber&gs_l=img.3...41452.43749.0.44264.6.1.0.5.0.0.160.160.0j1.1.0....0...1ac.1.34.img..6.0.0.-yiKo7vt5E4
Russian mass interwar heavy TB-3 bomber (aka ANT-6):
https://en.wikipedia.org/wiki/Tupolev_TB-3
Huge, not having of analogs for that time, the K-7 bomber (flying prototype):
https://en.wikipedia.org/wiki/Kalinin_K-7
https://www.google.ru/search?q=%D0%BA-7+bomber&newwindow=1&client=opera&hs=1J8&channel=suggest&tbm=isch&oq=%D0%BA-7+bomber&gs_l=img.3...41452.43749.0.44264.6.1.0.5.0.0.160.160.0j1.1.0....0...1ac.1.34.img..6.0.0.-yiKo7vt5E4