I noticed the in-service date for the Tupolev TB-3 was a bit early so I built a Tupolev TB-1 to fill the gap...... I doubt anyone will actually use it but it was fun to build. The TB-1 is significant in that it was the first twin-engined, all-metal, cantilever monoplane to enter production in the world and adds a bit of spice to a "what-if" Russian-Japanese pre 1935 battle
