Tags: Weapon.
The Shpitalny Sh-37 (Russian: Шпитальный – Ш-37) was the first indigenous Soviet 37 mm (1.5 in) aircraft cannon designed by Boris Shpitalniy at OKB-15. The gun saw limited production and was installed in few aircraft before being replaced by the competing Nudelman-Suranov NS-37 designed at OKB-16. It was installed on a military-trial basis on two short series of aircraft. Installed through the engined block of the Yak-7-37 it was known as MPSh-37 where MP stands for motornaya pushka.