VM reactor

The VM reactor (Russian: реактор ВМ) is type of various series of nuclear pressurized water reactors (PWR). They were used singly or in pairs to power the Soviet Navy's submarines.

It was developed by NIKIET.

Series

 * The VM-A reactor was the nuclear fission reactor used in pairs to power the Soviet Navy's Project 658 and 701 (Hotel-class submarine), Project 659 and 675 (Echo-class submarine), and Project 627 Кит (November-class submarine) first-generation submarines. It was a pressurized water reactor (PWR), using 20% enriched uranium-235 fuel to produce 70 MW of power. This is the reactor that powered SOVIET SUBMARINE K-19.
 * The VM-4 reactor is a nuclear fission reactor using 20% enriched uranium-235 fuel to produce 70 - 90 MW of power. It is used:
 * singly to power the Project 670 Скат and Чайка-Б (Charlie-class submarine) submarines
 * in pairs to power the Project 671 Ёрш and Щука (Victor-class submarine), Project 667 Мурена, Кальмар, and Дельфин (Delta-class submarine), and Project 667 Навага, Налим, Груша, and Андромеда (Yankee-class submarine) second-generation submarines.
 * The VM-5 reactor was the nuclear fission reactor used in a pair to power the Soviet Navy's Project 661 Анчар - Anchar (Papa-class submarine) second-generation submarine. It was a pressurized water reactor (PWR) using enriched uranium-235 fuel to produce 177 MW of power.