CACrown ArchivesThe cinema collection
Menu
Research dossier · General Reference

Otto Hahn (ship)

nuclear-powered cargo vessel

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 revisionMay 4, 2026
Entity authorityQ517975
Source-derived summary

Otto Hahn was one of only four nuclear-powered cargo vessels built to date. Planning of a German-built trade and research vessel to test the feasibility of nuclear power in civil service began in 1960 under the supervision of German physicist Erich Bagge. Launched in 1964, her nuclear reactor was deactivated 15 years later in 1979 and replaced by a conventional diesel engine room. The ship was scrapped in 2009.

History

Otto Hahn's keel was laid down in 1963 by Howaldtswerke Deutsche Werft of Kiel. She was launched in 1964 and named in honour of Professor Otto Hahn, the German chemist and Nobel Prize-winner, who discovered the nuclear fission of uranium in 1938. The first captain of the Otto Hahn was Heinrich Lehmann-Willenbrock, a German U-boat ace of World War II.

In 1968, the ship's 38-megawatt nuclear reactor was taken critical and sea trials began. In October of that year, NS Otto Hahn was certified for commercial freight transport and research.

Configured to carry passengers and ore, Otto Hahn made her first port call in Safi, Morocco, loading a cargo of phosphate ores, in 1970. In 1972, after four years of operation, her reactor was refuelled.

Editorial summary

This brief starts where responsible research should: with the source description of “Otto Hahn (ship)” as nuclear-powered cargo vessel. Everything that follows is an evidence route, not borrowed authority.

Editorial reviewA dependable orientation record for establishing vocabulary, names and a first evidence trail. The current lead gives the account dated anchors—1960, 1964, 1979, 2009—that can be checked directly. The selected authority fields contribute no independent date. The account is most persuasive where Otto, Hahn and ship can be independently traced.
Editorial analysis

Why this record matters

The subject matters to the general reference register because the source frames it as nuclear-powered cargo vessel. Its deeper value depends on whether names, dates, institutions and citations support that framing.

Evidence profile

The citation trail is more important than the brevity of the summary: it shows where individual claims can be examined in context. The source revision retrieved here is dated May 4, 2026. The linked authority identifier is Q517975. None of the 0 selected statements returned an explicit reference. The first chronological checks are 1960, 1964, 1979 and 2009.

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 “Otto Hahn (ship)”, its source revision and the description used here.
  2. Expand the search: follow Otto Hahn (ship) primary sources, Otto Hahn (ship) archive and Otto 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 “Otto Hahn (ship)”?
  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 Otto Hahn (ship)” 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.