Russo-Balt (sometimes Russobalt or Russo-Baltique) was one of the first Russian companies that produced vehicles and aircraft between 1909 and 1923. History Riga factory The Russo-Baltic Wagon Factory (; , RBVZ) was founded in 1874 in Riga, then a major industrial centre of Russian Empire. Originally, the new company was a subsidiary of the Van der Zypen & Charlier company in Cologne-Deutz, Germany. In 1894 the majority of its shares were sold to investors in Riga and St. Petersburg, among them local Baltic German merchants F. Meyer, K. Amelung, and Chr. Schroeder, as well as Schaje Berlin, a relative of Isaiah Berlin. The company eventually grew to 3,800 employees. Between 1909 and 1915 some 625 cars were built at the railway car factory RBVZ, initially to the designs of the young Swiss engineer Julian Potterat. Potterat had formerly been a designer at Automobiles Charles Fondu in Brussels, and was now at age 26 directors of the RBVZ car section and a principal designer. In 1915 the Riga factory was evacuated, with the equipment being transferred to St. Petersburg, Fili (Moscow) and Tver. Today in Riga, Latvia, there is a company named Russo-Balt that manufactures trailers. St Petersburg factory In early 1912 company director M. V. Shidlovsky hired 22-year-old Igor Sikorsky as the chief engineer for RBVZ's new aircraft division in St. Petersburg. Sikorsky's airplane had recently won a military aircraft competition in Moscow. He brought several engineers with him to RBVZ, and agreed that the company would own his designs for the next five years. This group quickly produced a series of airplanes. Among these were the S-5, S-7, S-9, S-10 (1913), S-11, S-12, S-16 (1915), S-20 (1916), Russky Vityaz (The Grand) (1913), a series named Il'ya Muromets starting in 1913, and its planned successor, the Alexander Nevsky (1916). Relatedly, in 1914, Shidlovsky was appointed commander of the newly formed EVK (Eskadra vozdushnykh korablei, Squadron of Flying Ships). This squadron flew Il'ya Muromets bombers during World War I. The Bolshevik Revolution brought an end to the aircraft business. Sikorsky left for France in 1918. Shidlovsky and his son were arrested in 1919, while attempting to go to Finland, and were murdered. After the 1917 revolution a second factory was opened in St. Petersburg, where they built armoured cars on chassis produced in Riga. Moscow factory In 1922, the production was moved from St. Petersburg to BTAZ in Moscow. The Moscow