The Tupolev TB3 was a heavy bomber aircraft which was deployed by the Soviet Air Force in the 1930s and during World War II. It was the world's first cantilever wing fourengine heavy bomber. Despite being officially withdrawn from service in 1939, TB3's performed bomber and transport duties through much of World War II.

For more information on the Tu TB3 see: http://en.wikipedia.org/wiki/Tupolev_...

As far as we are aware the original of this film was made by a division of the Red Army Air Force Scientific Research Institute, and as such we believe there are no copyrights on this material which is now over 60 years old.