The Aerowagon or aeromotowagon (Russian: Аэроваго́н, аэродрези́на) was an experimental high-speed railcar fitted with an aircraft engine and propeller traction invented by Valerian Abakovsky, a Russian engineer and communist from Latvia. It was originally intended to carry Soviet officials.

On 24 July 1921, a group of communists led by Fyodor Sergeyev took the Aerowagon from Moscow to the Tula collieries to test it. Abakovsky was also on board. Although they successfully arrived in Tula, on the return route to Moscow the Aerowagon derailed at high speed, killing everyone on board. The following people died in the accident:

• John Freeman

• Oskar Heilbrich

• John William Hewlett

• Fyodor Sergeyev (Artyom)

• Otto Strupat

• Abakovsky himself, at the age of 25.

All six were buried in the Kremlin Wall Necropolis.

Abakovsky is on the List of Inventors Killed By Their Own Inventions