CACrown ArchivesThe cinema collection
EN/FR
Search
Menu
Research dossier · General Reference

S1B reactor

naval electricity generation

Cross-disciplinary reference desk with index cards, atlas, dictionary and catalogue
General referenceInterpretive dossier study · Crown Archives visual atlas
Record originEnglish Wikipedia
Text licenseCC BY-SA 4.0
Source revisionJul 19, 2026
Entity authorityQ15705377 ↗
Source-derived summary

The S1B reactor is a naval reactor used by the United States Navy to provide electricity generation and propulsion on Columbia-class submarines. The S1B designation stands for:

S = Submarine platform

1 = First generation core designed by the contractor

B = Bechtel Marine Propulsion Corporation is the contracted designer

This pressurized water nuclear reactor, developed at the Knolls Atomic Power Laboratory, is designed to have increased energy density and to operate for 40 years without refueling.

Editorial summary

This brief starts where responsible research should: with the source description of “S1B reactor” as naval electricity generation. Everything that follows is an evidence route, not borrowed authority.

Editorial reviewA concise reference frame for defining the subject, testing terminology and identifying the institution closest to the evidence. The current 77-word lead offers orientation but no explicit four-digit date, so chronology should not be assumed. The selected authority fields contribute no independent date. The account is most persuasive where reactor, naval and electricity can be independently traced.
Editorial analysis

Why this record matters

The subject matters to the general reference register because the source frames it as naval electricity generation. Its deeper value depends on whether names, dates, institutions and citations support that framing.

Evidence profile

Named sources, stable identifiers and responsible institutions provide the strongest route from overview to verifiable evidence. The source revision retrieved here is dated Jul 19, 2026. The linked authority identifier is Q15705377. None of the 0 selected statements returned an explicit reference.

Critical limits

A concise general-reference account can conceal disagreements about scope, terminology or the weight assigned to individual sources. The lead is largely declarative, so disagreement and counter-evidence require a deliberate search beyond the opening account. Authority statements aid reconciliation but still require their own references, qualifiers and ranks to be checked.

How to read it

Use the entry as an orientation point, then follow its citations and revision history. Names, dates and institutional relationships should be checked against the original record.

Best used for
  • Subject orientation
  • Search vocabulary
  • Locating named sources
Verify next

The closest primary source, responsible institution and strongest cited specialist reference.

Three-step research path

  1. Establish the record: confirm the title “S1B reactor”, its source revision and the description used here.
  2. Expand the search: follow S1B reactor primary sources, S1B reactor archive and reactor research across catalogues and specialist indexes.
  3. Test the account: compare the strongest cited source with the responsible institution’s current record and note any disagreement.

Questions for further research

  1. Which source most directly establishes the central claim about “S1B reactor”?
  2. Which cited source is closest to the event, object or claim?
  3. What terminology or title could unlock a more precise catalogue search?
Subject index

Search terms from this dossier

Source & attribution

This entry incorporates text from “S1B reactor” on English Wikipedia. Contributors are listed in the page history. Text is available under the Creative Commons Attribution-ShareAlike 4.0 License. Selected authority identifiers and statements are retrieved from Wikidata under CC0; their references and qualifiers remain part of the verification path.