Vought O2U Corsair
1926 naval observation aircraft family by Vought

The Vought O2U Corsair is a 1920s biplane scout and observation aircraft. Developed by Vought Corporation, the O2U was ordered by the United States Navy (USN) in 1927. Powered by a 400 hp (300 kW) Pratt & Whitney R-1340 engine, it incorporated a steel-tube fuselage structure and a wood wing structure with fabric covering. Many were seaplanes or amphibians.
The O2U was the first of several Vought aircraft to bear the name Corsair. The Vought SBU Corsair of 1933, Vought F4U Corsair of 1938, and A-7 Corsair II of 1963 all also bore the name.
Design and development
Two prototypes were ordered in 1926 and tested by the Navy Trial Board before the first production batches were ordered. In 1927, a total of 291 O2Us were produced. The O2U-2, -3 and -4 were ordered in 1928 with minor changes. By 1930 they were being superseded by the O3U which was basically similar to the O2U-4, one variant of which was fitted with the Grumman float, and were manufactured until 1936.
“Vought O2U Corsair” enters the record as 1926 naval observation aircraft family by Vought. Crown Archives preserves that source wording while asking what Vought, Corsair and naval can confirm, complicate or overturn.
Why this record matters
“Vought O2U Corsair” is worth following because a concise public description often conceals a longer documentary argument. Here, Vought, Corsair and naval provides the most credible route into that argument.
The citation trail is more important than the brevity of the summary: it shows where individual claims can be examined in context. The source revision retrieved here is dated Aug 29, 2026. The linked authority identifier is Q3100680. None of the 0 selected statements returned an explicit reference. The first chronological checks are 1927, 1340, 1933 and 1938.
A concise general-reference account can conceal disagreements about scope, terminology or the weight assigned to individual sources. 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
Use the entry as an orientation point, then follow its citations and revision history. Names, dates and institutional relationships should be checked against the original record.
- Subject orientation
- Search vocabulary
- Locating named sources
The closest primary source, responsible institution and strongest cited specialist reference.
Three-step research path
- Establish the record: confirm the title “Vought O2U Corsair”, its source revision and the description used here.
- Expand the search: follow Vought O2U Corsair primary sources, Vought O2U Corsair archive and Vought research across catalogues and specialist indexes.
- Test the account: compare the strongest cited source with the responsible institution’s current record and note any disagreement.
Questions for further research
- Which source most directly establishes the central claim about “Vought O2U Corsair”?
- Which institution is responsible for the underlying evidence?
- What terminology or title could unlock a more precise catalogue search?
Search terms from this dossier
This entry incorporates text from “Vought O2U Corsair” 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.