Piel Emeraude
1952 sportplane family by Claude Piel

The Piel CP-30 Emeraude (French: émeraude = "emerald") is an aircraft designed in France in the mid-1950s and widely built both by factories and homebuilders.
Design and development
The Emeraude is a low-wing cantilever monoplane with fixed tailwheel undercarriage and side-by-side seating for two. The aircraft uses wood construction with a laminated box spar with an elliptical trailing edge. The prototype was designed and built by Claude Piel, who then licensed manufacture of the aircraft to a number of firms, most significantly Coopavia. These early production machines were similar to the prototype, but were fitted with more powerful engines.
The first major revision of the design was the Super Emeraude, designed by Piel while working at Scintex in the early 1960s. It featured a strengthened airframe and cleaned-up aerodynamics, allowing it to be certified for aerobatics. Much of Scintex's Super Emeraude production was contracted out to CAARP, where the design eventually served as the basis for the CAP-10.
Emeraudes were also produced in the United Kingdom (by Fairtravel as the Linnet) and in South Africa by General Aircraft ("Genair") of Virginia Airport as the Aeriel 2 with imported engines, the first aircraft to be manufactured entirely in that country. The Linnet was modified by the Garland Aircraft Company, formed by P.A.T Garland and D.E. Bianchi, to meet British airworthiness requirements.
“Piel Emeraude” enters the record as 1952 sportplane family by Claude Piel. Crown Archives preserves that source wording while asking what Piel, Emeraude and sportplane can confirm, complicate or overturn.
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This entry incorporates text from “Piel Emeraude” 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.