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Research dossier · People & Ideas

Frank Piasecki

American aerospace engineer (1919–2008)

Correspondence, annotated notebooks and portrait silhouettes prepared for research
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Record originEnglish Wikipedia
Text licenseCC BY-SA 4.0
Source revisionSep 1, 2026
Entity authoritySource title only
Source-derived summary

Frank Piasecki was an American engineer and helicopter aviation pioneer. Piasecki pioneered tandem rotor helicopter designs and created the compound helicopter concept of vectored thrust using a ducted propeller.

Editorial summary

Begin with the source’s own compact description: “Frank Piasecki” is american aerospace engineer (1919–2008). The dossier treats that line as a proposition to test through Frank, Piasecki and American, not as a finished interpretation.

Editorial reviewStrongest as a route into the people, institutions and dated events that shaped the subject’s public record. The current 29-word lead offers orientation but no explicit four-digit date, so chronology should not be assumed. The selected authority fields contribute no independent date. For this dossier, Frank, Piasecki and American is the immediate research focus.
Editorial analysis

Why this record matters

The phrase “american aerospace engineer (1919–2008)” supplies a clear boundary for inquiry. It also exposes the unanswered questions: who defined that boundary, when it became stable and which sources sit outside it.

Evidence profile

The entry’s evidential value lies in the named roles, institutions and publications that can be tested against primary documentation. The source revision retrieved here is dated Sep 1, 2026.

Critical limits

Public reputation and documentary evidence do not always develop together; absence from a summary is not evidence of historical absence. 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

Read biographical claims against dates, named institutions and the cited references. Distinguish a subject’s later reputation from evidence produced during their lifetime.

Best used for
  • Establishing names and roles
  • Building a first chronology
  • Locating cited institutions
Verify next

Personal papers, civil or court records, institutional files and the scholarship cited by the source.

Three-step research path

  1. Establish the record: confirm the title “Frank Piasecki”, its source revision and the description used here.
  2. Expand the search: follow Frank Piasecki primary sources, Frank Piasecki archive and Frank 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 “Frank Piasecki”?
  2. Which claims depend on a single source or contested interpretation?
  3. Which primary records establish identity, chronology and institutional ties?
Subject index

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Source & attribution

This entry incorporates text from “Frank Piasecki” 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.