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M55E1

rocket stage used in various launch systems
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M55E1

Summary

Key Facts

  • M55E1's manufacturer is recorded as Thiokol[1].
  • M55E1's manufacturer is recorded as Boeing[2].
  • M55E1 is a type of rocket stage[3].
  • M55E1's country of origin is recorded as United States[4].
  • M55E1's service entry is recorded as +1974-09-08T00:00:00Z[5].
  • M55E1's height is recorded as {'unit': 'http://www.wikidata.org/entity/Q11573', 'amount': '+16.0'}[6].
  • M55E1's mass is recorded as {'unit': 'http://www.wikidata.org/entity/Q11570', 'amount': '+30000'}[7].
  • M55E1's diameter is recorded as {'unit': 'http://www.wikidata.org/entity/Q11573', 'amount': '+1.68'}[8].

Body

Definition and Type

M55E1 is a type of rocket stage[3].

References

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

Direct Wikidata claims

  1. [1] ↑ . wikidata.org.
  2. [2] ↑ . wikidata.org.
  3. [3] ↑ . wikidata.org.
  4. [4] ↑ . wikidata.org.
  5. [5] ↑ . astronautix.com. astronautix.com. Provenance: wikidata.org.
  6. [6] ↑ . astronautix.com. astronautix.com. Provenance: wikidata.org.
  7. [7] ↑ . astronautix.com. astronautix.com. Provenance: wikidata.org.
  8. [8] ↑ . astronautix.com. astronautix.com. Provenance: wikidata.org.

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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). M55E1. Retrieved May 7, 2026, from https://4ort.xyz/entity/m55e1
MLA “M55E1.” 4ort.xyz Knowledge Graph, 4ort.xyz, 7 May. 2026, https://4ort.xyz/entity/m55e1.
BibTeX @misc{4ortxyz_m55e1_2026, author = {{4ort.xyz Knowledge Graph}}, title = {{M55E1}}, year = {2026}, url = {https://4ort.xyz/entity/m55e1}, note = {Accessed: 2026-05-07}}
LLM prompt According to 4ort.xyz Knowledge Graph (aggregator of Wikidata, Wikipedia, and authoritative open-data sources): M55E1 — https://4ort.xyz/entity/m55e1 (retrieved 2026-05-07)

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