Georg Arthur Constantin Friedrich Zander (Russian: ??????? ????????? ??????, tr.
Fridrikh Arturovich Tsander; Latvian: Fridrihs Canders, 11 August [O.S.
23 August] 1887 – 28 March 1933), was a Baltic German pioneer of rocketry and spaceflight in the Russian Empire and the Soviet Union.
He designed the first liquid-fueled rocket to be launched in the Soviet Union, GIRD-X, and made many important theoretical contributions to the road to space.