Railways Valerian Abakovsky  (1895–1921) constructed the  Aerowagon , an experimental high-speed  railcar  fitted with an  aircraft engine  and propeller traction; it was intended to carry  Soviet  officials. On July 24, 1921, a group led by  Fyodor Sergeyev  took the Aerowagon from  Moscow  to the  Tula  collieries to test it, with Abakovsky