The Morane-Saulnier M.S.139 was a version of the M.S.138 parasol wing two-seat primary trainer that was powered by a Clerget engine in place of the standard engine used on the M.S.138. Paraguay received one M.S.139, powered by a 130hp Clerget engine. This aircraft arrived in May-June 1927 and was used as a trainer until the end of the Chaco War. It then went to a private aero club.
How to cite this article:
Rickard, J (15 February 2012), Morane-Saulnier M.S.139 , http://www.historyofwar.org/articles/weapons_morane_saulnier_MS139.html