BA-21

The BA-21 was an experimental Soviet armored car from 1938. It was a major modification of the BA-20, using a triaxial truck chassis instead of biaxial. The next year, the design was further developed into the LB-23, which had a better engine. Both vehicles were not accepted for production.

Specifications
The BA-21 had a weight of 3.25 t, while having a length of 14 ft, a width of 5 ft, and a height of 7 ft. It was powered by a GAZ M1 water-cooled four-cylinder engine with a speed of 33 mph. It had 11 mm (0.43 in) of armor, with a 7.62 in (0.3 in) DT machine gun. The vehicle was manned by a crew of two, consisting of a commander and a driver.

Development
The BA-21 was designed in 1938, as a major modification of the BA-20. It used a triaxial truck chassis, instead of a biaxial truck chassis. In 1939, the BA-21 was developed further into the LB-23, which had a better engine than the original design. Both of the vehicles were not accepted for production.