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BT-4

family of spacecraft rocket engines
Thing engine_family Q17177324
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BT-4

Summary

BT-4 is an engine family[1]. BT-4 draws 11 Wikipedia views per month (engine_family category, ranking #237 of 345).[2]

Key Facts

  • BT-4's instance of is recorded as engine family[3].
  • BT-4's manufacturer is recorded as IHI Aerospace[4].
  • BT-4's subclass of is recorded as liquid apogee engine[5].
  • BT-4's country of origin is recorded as Japan[6].
  • BT-4's Google Knowledge Graph ID is recorded as /g/12148szr[7].

Why It Matters

BT-4 draws 11 Wikipedia views per month (engine_family category, ranking #237 of 345).[2]

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.

Class ancestry

  1. [1] ↑ . Wikidata. wikidata.org.

Aggregate / graph-position facts

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

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