Propeller of BENZ FX aero engine, 105 HP (77 kW). Mercedes Museum, Stuttgart (entry 2022).

The propeller has pressed name WOLF as indicated producer, however likely being replica. Pitch is indicated as H=110, diameter D=250(?).

The FX was the first aero engine designed for aircraft by Benz & Cie. In 1913 it won the Emperor,s Award for the best German Aero engine, established b Emperor Wilhelm II.

Engine parameters:

• Displacement:   9,556 l
• Power:                105 HP
• At engine speed: 1350 / min.
• Production years: 1912 – 1913
• Weight:               155 kg