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USS Haddock

1966 Permit-class submarine
Thing Nuclear Powered Attack Submarine Q6138545
USS Haddock
PHC Larry Foster · Public Domain · Wikimedia

Facts

15 properties
Instance of
nuclear-powered attack submarine
Armament
torpedo tube[10]
Country of origin
United States[6]
Country of registry
United States[19]
Described by source
Naval Vessel Register[16]
Different from
USS Haddock[17]
Manufacturer
Ingalls Shipbuilding[4]
Name
USS Haddock[18]
Named after
haddock[3]
Operator
United States Navy[2]
Pennant number
SSN-621[15]
Powered by
S5W reactor[9]
Shipping port
San Diego, Pearl Harbor[7][8]
Significant event
ship launching, keel laying, ship commissioning, ship decommissioning[11][12][13][14]
Vessel class
Permit-class submarine[5]
🏷️ Also known as
en SSN-621 en USS Haddock fa یواس‌اس هادوک (اس‌اس‌ان-۶۲۱) ja ハダック
🔖 Identifiers · 1
Freebase ID
/m/02d_y9

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🔗 Connections
Significant event 3
ship launching, keel laying, ship commissioning
Shipping port 2
San Diego, Pearl Harbor
Armament 1
torpedo tube
Country of registry 1
United States
Described by source 1
Naval Vessel Register
Different from 1
USS Haddock
Instance of 1
nuclear-powered attack submarine
Manufacturer 1
Ingalls Shipbuilding
Named after 1
haddock
Operator 1
United States Navy
Powered by 1
S5W reactor
Vessel class 1
Permit-class submarine
← Different from 1
USS Haddock
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Summary

USS Haddock is a nuclear-powered attack submarine[1].

Related Entities

United States

References

Programmatic citations — every numbered marker resolves to a verifiable graph row below.

Direct Wikidata claims

  1. [2] ↑ . wikidata.org.
  2. [3] ↑ . wikidata.org.
  3. [4] ↑ . wikidata.org.
  4. [5] ↑ . wikidata.org.
  5. [6] ↑ . wikidata.org.
  6. [7] ↑ . wikidata.org.
  7. [8] ↑ . wikidata.org.
  8. [9] ↑ . wikidata.org.
  9. [10] ↑ . wikidata.org.
  10. [11] ↑ . wikidata.org.
  11. [12] ↑ . wikidata.org.
  12. [13] ↑ . wikidata.org.
  13. [14] ↑ . wikidata.org.
  14. [15] ↑ . wikidata.org.
  15. [16] ↑ . wikidata.org.
  16. [17] ↑ . wikidata.org.
  17. [18] ↑ . wikidata.org.
  18. [19] ↑ . wikidata.org.

Class ancestry

  1. [1] ↑ . Wikidata. wikidata.org.

📑 Cite this page

Use these citations when quoting this entity in research, articles, AI prompts, or wherever provenance matters. We aggregate Wikidata + Wikipedia + authoritative open-data sources; the stitched, scored, cross-referenced view is what 4ort.xyz contributes.

APA 4ort.xyz Knowledge Graph. (2026). USS Haddock. Retrieved November 10, 2026, from https://4ort.xyz/entity/uss-haddock
MLA “USS Haddock.” 4ort.xyz Knowledge Graph, 4ort.xyz, 10 Nov. 2026, https://4ort.xyz/entity/uss-haddock.
BibTeX @misc{4ortxyz_uss-haddock_2026, author = {{4ort.xyz Knowledge Graph}}, title = {{USS Haddock}}, year = {2026}, url = {https://4ort.xyz/entity/uss-haddock}, note = {Accessed: 2026-11-10}}
LLM prompt According to 4ort.xyz Knowledge Graph (aggregator of Wikidata, Wikipedia, and authoritative open-data sources): USS Haddock — https://4ort.xyz/entity/uss-haddock (retrieved 2026-11-10)

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Edit History

Rolling log of changes to this entity's Wikidata record. Values shown reflect the current state of each edited property — follow the history link to see the precise diff for any edit.

  1. 7w ago · Vicarage · 2026-09-18 view diff on Wikidata ↗
    Manufacturer → Ingalls Shipbuilding
    Significant event → ship launching, keel laying, ship commissioning +1
    Different from → USS Haddock
    Named after → haddock
    + 9 other properties edited (see Wikidata diff for full list)
    "Created claim: Country of origin: United States, batch #274403"
Live feed via Wikidata EventStreams. New edits appear within minutes of being made on Wikidata.