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Fournier RF 5

series of motor gliders

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General referenceInterpretive dossier study · Crown Archives visual atlas
Record originEnglish Wikipedia
Text licenseCC BY-SA 4.0
Source revisionNov 8, 2025
Entity authorityQ3080099
Source-derived summary

The Fournier RF 5 is a two-seat motor glider designed by René Fournier .

Design and development

The RF 5 is based on the single seater Fournier RF 4, and is a low-winged monoplane of all-wooden construction, with the crew of two sat in a tandem enclosed cockpit. It is semi-aerobatic with loops, stall turns, lazy eights, chandelles and spins approved. It has a manually retractable center landing gear, a steerable tailwheel and detachable outrigger landing gear. Spoilers are available to reduce lift. The wingtips of the parked aircraft can be unlocked and folded inwards by a single person to reduce required hangar space.

Variants

RF 5B

An improved high-performance version. Powered by a 50.7 kW (68 hp) Limbach SL 1700 E Comet engine. One prototype build by Alpavia.

RF 5B Sperber

A high performance powered sailplane with 17.5 m (57 ft) span wings.

Editorial summary

“Fournier RF 5” enters the record as series of motor gliders. Crown Archives preserves that source wording while asking what Fournier, series and motor can confirm, complicate or overturn.

Editorial reviewA concise reference frame for defining the subject, testing terminology and identifying the institution closest to the evidence. The current lead gives the account dated anchors—1700—that can be checked directly. The selected authority fields contribute no independent date. Its strongest next move is a source search built around Fournier, series and motor.
Editorial analysis

Why this record matters

“Fournier RF 5” is worth following because a concise public description often conceals a longer documentary argument. Here, Fournier, series and motor provides the most credible route into that argument.

Evidence profile

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 Nov 8, 2025. The linked authority identifier is Q3080099. None of the 0 selected statements returned an explicit reference. The first chronological checks are 1700.

Critical limits

The absence of detail may reflect summary conventions rather than a lack of surviving documentation. 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.

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  2. Expand the search: follow Fournier RF 5 primary sources, Fournier RF 5 archive and Fournier 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.

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Source & attribution

This entry incorporates text from Fournier RF 5” 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.