TsKB

The TsKB (Central Design Bureau) was a Soviet aircraft design bureau established in the early 1930s. It was headed by aircraft designer Sergei Ilyushin.{{Cite web|url=https://www.globalsecurity.org/military/world/russia/tskb.htm|title=Zhukovsky Central AeroHydrodynamic Institute (TsAGI)|website=www.globalsecurity.org}}{{cite encyclopedia|last=Gunston|first=Bill|date=1995|title=The Osprey Encyclopedia of Russian Aircraft 1875-1995|location=London|publisher=Osprey Aerospace|isbn=1855324059}}