Around 1933, engineer René Poinsard presented very light horizontally-opposed twin-cylinder engines. They were the 2B giving 28 CV direct or geared, and the 2C giving 39 CV with gearbox.

“Poinsard 2B”

-The Type B gave 25 CV at 2,280 rpm and 28 CV at 2,500 rpm. They were made between the years 1933-1940 and were widely used.

-The B with gearbox gave 32 CV at 1,580 rpm, with single and double ignition.

 
“Poinsard 2C”

-A clear photograph of the Poinsard with two horizontally-opposed cylinders giving 28 CV at 2,500 rpm.

“Poinsard twin-cylinder”

-This engine is confused with Point-Bard, which in the main text is attributed to another manufacturer.

-But there is a possibility that there is a confusion with both. Research continues.

-See also Hochet-Mengin, Mengin, Mengin-Poinsard, Point-Bard, Genete-Hochet-Mengin y GHM.

-The Type 2C gave 38 CV at 2,500 rpm, and was made during the same time.

-They are also available in single and double ignition versions.

-Later Poinsard manufactured his engines through Mengin, at the Pierre Mengin Establishments: the 2C with reference 2A.01.

-They flew on the Jodel Baby D-9 and the Pou-du-Ciel HM-14 (Sky Flea).

-They used roller bearings for the crankshaft and the gear shafts. The 2C came out in 1934.

From Appendix A4/6: In the main text there is the controversy of the Poinsard engine regarding the possible Point-Bard mark that appeared in an article and that has finally been identified as an error of that publication.

-It has been decided not to eliminate the Point-Bard brand, since being unmasked it will serve for another possible reader to clarify their false identity.

-In addition, this error has been verified at the MAE Documentation Center.

"New photo of another Poinsard"

From Appendix 12: Below we show an old photo and an outline of the boxer engine with two horizontally-opposed cylinders.

“Design by Rene Poinsard”