The BA-27 armoured car was a Soviet heavy armoured car, produced from 1928 to 1931, and used for scouting and infantry support duties early in the Second World War. The BA-27 had a similar turret to the T-18 tank, and both forward and reverse driver's controls. The last batch of BA-27s were mounted on Ford Model AA truck chassis. The chassis was found to be inadequate to carry the heavy armour, and some were later rebuilt on heavier, three-axle Ford-Timken truck chassis at Repair Base No. 2. 193 of these BA-27M armoured cars remained in service on June 1, 1941, just before the German invasion of the Soviet Union.