N.F. Tsyganov was a Russian platoon commander in the 4th Armoured Regiment of the Ukraine Military District during the second world war. He was a self-taught engineer. He was responsible for several designs:
- T-34 with Concrete Armour
- S-2 "Cherepaha" (turtle, черепаха)
1. "BT-7." Wikipedia: The Free Encyclopedia. Wikimedia Foundation, Inc., 26 Jul 2013. Web. 6 Oct 2013. <http://en.wikipedia.org/wiki/BT-7>.