Siemens-Halske Sh 12


The Siemens-Halske Sh 12 was a nine-cylinder, air-cooled, radial engine for aircraft built in Germany in the 1920s. First run in 1925, it was rated at 80 kW (110 hp). The Sh 12 was also produced in the United States by Ryan Aeronautical Corp. as the Ryan-Siemens 9.

Sh 12
Flying, airplane, airport, transport, pilot, biplane Fortepan 25262.jpg
An Sh 12 fitted to a Hungarian Udet U-12 licence-built by Weiss-Manfred in Hungary
Type Radial engine
Manufacturer Siemens-Halske
First run 1925