The Moscow Aviation Institute (MAI) Sh-Tandem, an experimental ground attack aircraft developed by the Soviets in the 1930s.
https://diqn32j8nouaz.cloudfront.net/mai_shtandem.jpg
https://diqn32j8nouaz.cloudfront.net/mai_shtandem1.jpg
Previously:
https://www.homemadetools.net/forum/...482#post158632
https://www.homemadetools.net/forum/...288#post134979
https://www.homemadetools.net/forum/...744#post152116
https://www.homemadetools.net/forum/...624#post151753
