BM-40A reactor
The BM-40A reactor is the nuclear fission reactor used to power four of the seven boats of the Soviet Navy's Project 705 Лира fourth generation submarines. It is a liquid metal cooled reactor, using highly enriched uranium-235 fuel to produce 155 MWt of power.
It was developed by OKB Gidropress in cooperation with IPPE.
BM-40A has two steam circulation loops.
