The Ouragan diesels were produced in Paris, France during the years 1946-48 by the Fargeas brothers Roger and Georges. The name means "Hurricane" in French. 

The engines appeared in displacements of 0.9 cc, 3.36 cc and 5 cc. They all shared a few common features. They were long-stroke plain bearing diesels featuring variable compression using an eccentric main bearing sleeve which could be rotated to vary the distance between the piston crown and the fixed cylinder head at top dead centre. Their basic design had been developed in 1945 by Roger Fargeas as the Airplan 2.15 cc diesel which was later released in England as the Airstar 2.15 cc model.

The first Ouragan model of early 1946 seems to have been a rear rotary drum valve version of the 3.36 cc design. The 0.9 cc variant came a little later and used sideport induction. An even later second variant of the 3.36 cc model also featured sideport induction.

The engines were produced on a very small scale to very high standards by the two brothers working in their own small workshop - nothing on the scale of a factory was ever established. Following the 1948 release of a very few examples of a 5 cc variant, the brothers abandoned the range, leaving a relatively small number of surviving examples. The survivors are very rare and highly prized today.

A detailed article presenting a full review of the Ouragan range together with a few bench tests will appear on this website in due course.