British Aircraft Swallow
military aircraft

The B.A Swallow was a British light aircraft of the 1930s. It was a license-built version by the British Klemm Aeroplane Company (which later became known as the British Aircraft Manufacturing Co.) of the German Klemm L.25. A total of 135 were built.
Design and development
The German aircraft manufacturer Klemm developed a successful low-powered light aeroplane, the Klemm L.25, which first flew in 1927, of which over 600 were produced. Several were sold to British owners, where they proved popular, so the British dealer for the L.25, Major E.F Stephen, set up the "British Klemm Aeroplane Company" at London Air Park, Hanworth, Middlesex to produce a version of the L.25 under license.
The prototype of the licensed version, known as the B.K. Swallow, first flew at Hanworth in November 1933. It was an all-wooden cantilever monoplane, with tandem cockpits accommodating two persons, and was powered by a 75 hp (56 kW) Salmson 9 or 85 hp (63 kW) Pobjoy Cataract radial engine. It differed from the German original with its more powerful engines and local strengthening to meet British airworthiness requirements.
In 1935 a revised version of the Swallow was introduced, with the curved wing tips, rudder and tailplane inherited from the Klemm original being made straight and with revised fuselage top decking. At this time the company changed its name to the British Aircraft Manufacturing Co., so the revised version was known as the B.A Swallow II. Swallow IIs were produced powered either by the Cataract or the Cirrus Minor inline engine, production continuing until 1938, with a total of 107 Swallow IIs produced, following on from the 28 Swallows I.
Operational history
The Swallow, which proved to be robust, was popular in service.
This brief starts where responsible research should: with the source description of “British Aircraft Swallow” as military aircraft. Everything that follows is an evidence route, not borrowed authority.
Why this record matters
The subject matters to the general reference register because the source frames it as military aircraft. Its deeper value depends on whether names, dates, institutions and citations support that framing.
Vocabulary and entity names are the principal evidence signals here, because they determine the precision of every later search. The source revision retrieved here is dated May 30, 2026. The linked authority identifier is Q776001. None of the 0 selected statements returned an explicit reference. The first chronological checks are 1927, 1933, 1935 and 1938.
Overview language is designed for orientation and should not be treated as a substitute for the evidence cited beneath it. 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 “British Aircraft Swallow”, its source revision and the description used here.
- Expand the search: follow British Aircraft Swallow primary sources, British Aircraft Swallow archive and British 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 “British Aircraft Swallow”?
- Which cited source is closest to the event, object or claim?
- What terminology or title could unlock a more precise catalogue search?
Search terms from this dossier
This entry incorporates text from “British Aircraft Swallow” 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.