User:TSRL/sandbox/Lorraine 18F Sirius

Design and development
The Société Lorraine, nationalized to Société Nationale de Construction de Moteurs in 1937, were best known for large, water-cooled V-8 and V-12 aircraft engines but they also built radial engines both small and large. The biggest of these were the nine cylinder, single row Lorraine Algol and the 18 cylinder, double row Sirius. These had much in common including the same bore, though the Sirius had a longer stroke.