The Gnome 7Σ Sigma (commonly called the Gnome 60 hp) is a French seven-cylinder, air-cooled rotary aero engine.
The Sigma produced from its capacity of .
Specifications (7 Sigma)
See also
References
Notes
Bibliography
Lumsden, Alec. British Piston Engines and their Aircraft. Marlborough, Wiltshire: Airlife Publishing, 2003. .
External links
Smithsonian/NASM's page on Gnome Omega No.1 Video of April 2009 ground runup of a restored Gnome Omega in the USA