In 1930, Louis Coatalen settled in Saint Ouen, near the Seine and founded "Diesel Aviation". (See Sunbeam).

-It is in 1924 that Mr. Coatalen experimented different injection systems with a British single-cylinder Sunbeam engine.

-He built high-powered car and truck engines until 1928, when he presented a 6-cylinder engine at the London Aviation Show. This engine gave 140 CV at 2,000 rpm and was derived from a Panhard.

-On this course he decided to deal with a sound aviation engine, a V-12, with gear and supercharger.

"Coatalen ad"

-It would be the Coatalen 12Vrs2 model that gave 550/600 CV.

-A beautiful engine, although on the long run there were consistency problems with its structure and especially with the cylinder heads that made it fail to prosper.

-The monobloc injection pumps are at the rear, above the supercharger.

-We found a better perspective of the famous Coatalen Diesel engine.

-It is the twelve-cylinder 12Vrs2,  in V at 60°. At that time, before WWII, he already used the "common rail" type direct injection system, which was so popular in the automotive industry during the beginnings of the 21st century.

"Coatalen - 12Vrs2 Diesel"

-A well-preserved Coatalen engine is located at the MAE in its engine reserve stock.

-We see that the superposed reduction gear for the propeller has a very strong resemblance to that of the Hispano-Suiza engines of the same time.

-Designed by Louis Coatalen, see also the Sunbeam chapter.

"Diesel L.Coatalen"