TheKLT-40 family arenuclear fissionreactors originating fromOK-150 and OK-900 ship reactors. KLT-40 were developed to power theTaymyr-class icebreakers (KLT-40M, 171 MW) and theLASH carrierSevmorput (KLT-40, 135 MW).^[1] They arepressurized water reactors (PWR) fueled by either 30–40% or 90%^{[note 1]}enricheduranium-235 fuel to produce 135 to 171 MW of thermal power.^[2]

TheKLT-40S variant is used in theRussian floating nuclear power stationAkademik Lomonosov. It was developed byOKBM Afrikantov and produced byNMZ. The KLT-40S produces 150 MW thermal (about 52 MWe at 35% efficiency). It useslow-enriched uranium (LEU) fuel enriched below 20%, averaging at 14.1% enrichment, and has afuel cycle of 3 years.^[3]

The KLT-40 design was further improved and evolved intoRITM-200 family of SMR.

• "KLT-40S A reactor plant for the floating nuclear power plant"(PDF). Archived fromthe original(PDF) on 2021-07-05. Retrieved2020-10-05. – onOKBM Afrikantov official pdf(in English)

• Soviet naval reactors
• Small modular reactor

• Webarchive template wayback links
• Articles with short description
• Short description is different from Wikidata