Kalinin K-7
We’d never thought someone would turn this strange plane into an RC aircraft. If there are any peculiar aircraft fanatics out there, they already know this is a model of a Kalinin K-7. The Soviet Union began building the real one in 1931. At the time, the aircraft was one of the biggest planes in history, with a wingspan of 173 feet 11 inches (53m) and a length of 91 feet 10 inches (28m). Unfortunately, structural issues caused it to fail, and the Soviets ended the project in 1935. Glad a fan out there wanted to resurrect the odd design.
