06/15/2013. Remarks by Johan Visschedijk: "This aircraft was originally built in 1991 as a TB 20 Trinidad. Subsequently it was converted to test the so-called gust-absorption (gust alleviation) surfaces developed by René Hirsch, giving it a very specific planform. In fact it was a continuation of the research done by Hirsch with the Hirsch-MAéRC H-100, and later with the converted Gardan GH-80 Horizon (F-WREI).

As an experimental aircraft it was registered as TBH 20 (the H donating Hirsch) Colibri, with the test registration F-WHGQ. It was first flown by Jean Caillard and Michel Barry at the Aérodrome Toussus-le-Noble, near Paris, on March 16, 1995, last flight was made on March 12, 1999. The aircraft was converted back to a TB 20 Trinidad and was registered F-GSZJ to the Aero Club 'Leon Morane' of the SOCATA company on April 27, 2001."