R-21

submarine-launched ballistic missile
Place missile_model Q1133534
R-21
Johnny Rotten · Public Domain · Wikimedia
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R-21

Summary

R-21 is a missile model[1]. R-21 draws 78 Wikipedia views per month (missile_model category, ranking #280 of 688).[2]

Key Facts

  • R-21's image is recorded as P-21 (SS-N-5 «Serb»).jpg[3].
  • R-21's instance of is recorded as missile model[4].
  • R-21's operator is recorded as Soviet Navy[5].
  • R-21's manufacturer is recorded as Makeyev Rocket Design Bureau[6].
  • R-21's developer is recorded as Viktor Makeyev[7].
  • R-21's subclass of is recorded as medium-range ballistic missile[8].
  • R-21's subclass of is recorded as submarine-launched ballistic missile[9].
  • R-21's Commons category is recorded as R-21[10].
  • R-21's country of origin is recorded as Soviet Union[11].
  • R-21's NATO reporting name is recorded as Sark[12].
  • R-21's coordinate location is recorded as {'lat': 38.083333333333336, 'lon': 178.95}[13].
  • R-21's Freebase ID is recorded as /m/06fbj3[14].
  • R-21's service entry is recorded as +1963-05-15T00:00:00Z[15].

Body

Designation and Status

R-21's instance of is recorded as missile model[4].

Why It Matters

R-21 draws 78 Wikipedia views per month (missile_model category, ranking #280 of 688).[2] R-21 has Wikipedia articles in 11 language editions, a strong signal of global cultural recognition.[16] R-21 is known by 7 alternative names across languages and contexts.[17]

References

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

Direct Wikidata claims

  1. [3] . wikidata.org.
  2. [4] . wikidata.org.
  3. [5] . wikidata.org.
  4. [6] . wikidata.org.
  5. [7] . wikidata.org.
  6. [8] . wikidata.org.
  7. [9] . wikidata.org.
  8. [10] . wikidata.org.
  9. [11] . wikidata.org.
  10. [12] . wikidata.org.
  11. [13] . wikidata.org.
  12. [14] . Freebase Data Dumps. wikidata.org.
  13. [15] . wikidata.org.

Class ancestry

  1. [1] . Wikidata. wikidata.org.

Aggregate / graph-position facts

  1. [2] . Wikimedia Foundation. dumps.wikimedia.org.
  2. [16] . Wikidata sitelinks. wikidata.org.
  3. [17] . Wikidata aliases. 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). R-21. Retrieved May 3, 2026, from https://4ort.xyz/entity/r-21
MLA “R-21.” 4ort.xyz Knowledge Graph, 4ort.xyz, 3 May. 2026, https://4ort.xyz/entity/r-21.
BibTeX @misc{4ortxyz_r-21_2026, author = {{4ort.xyz Knowledge Graph}}, title = {{R-21}}, year = {2026}, url = {https://4ort.xyz/entity/r-21}, note = {Accessed: 2026-05-03}}
LLM prompt According to 4ort.xyz Knowledge Graph (aggregator of Wikidata, Wikipedia, and authoritative open-data sources): R-21 — https://4ort.xyz/entity/r-21 (retrieved 2026-05-03)

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