English | French | |
---|---|---|
Patents | ||
Patents | screw-propellers | propulseurs à hélice |
Technical | ||
Technical | twin propellers | hélices jumelles |
Aeronautics | ||
Aeronautics | counter-rotating propellers | hélices contrarotatives |
Aeronautics | contra rotating propellers | hélices contrarotatives |
Aeronautics | counter rotating propellers | hélices contrarotatives |
Aeronautics | coaxial propellers | hélices coaxiales |
Military | ||
Military | counter-rotating propellers | hélices contra-rotatives |