The FMA 20 El Boyero ("Shepherd") was a light utility aircraft produced in Argentina in the 1940s.

The Fábrica Argentina de Aviones (FMA) began design work on the El Boyero in 1939, to meet the needs of Argentine flying clubs for a training aircraft.

Two prototypes were built, with the first, powered by a 50 hp (37 kW) Continental A50 flat four engine, flying on 2 November 1940, and the second early the following year.

[1] As FMA was busy building military aircraft production rights were sold to the private firm Sfreddo y Paolini [es] but they were unable to start production due to a shortage of materials and equipment as a result of the Second World War.

[2][4] Data from Jane's All the World's Aircraft 1948 [1]General characteristics Performance Media related to FMA 20 El Boyero at Wikimedia Commons