Ko te whakahaere tuatahi ki te whakawhanake i te mana karihi ko te US Navy, me te reactor S1W mo te kaupapa o te akiaki i nga kaipuke moana me nga kaipuke rererangi. I tukuna te kaipuke tuatahi o te kaipuke moana-a-iwi, USS Nautilus, ki te moana i te Hanuere 1954. Ko te huarahi o te hoahoa o te reactor rererangi i tino whakaaweawehia e Admiral Hyman G. Rickover, me Weinberg hei kaitohutohu tata, i whiriwhiria te hoahoa PWR / Pressurized Water Reactor, i roto i te ahua o te 10 MW reactor mo te Nautilus, he whakatau ka puta i te PWR te whakaaetanga a te kawanatanga ki te whakawhanake, he kaiarahi hangarau ka puta he paanga whakamutunga ki te maakete hiko i nga tau e haere mai ana. Ko te United States Navy Nuclear Propulsion and operation community, i raro i te aratau o te whakahaere a Rickover e mau tonu ana i te rekoata o nga aitua o te USS Nautilus, i tukuna ki te moana i te Hanuere 17, 1955. I te Hui-tanguru o te tau kotahi o
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