otto-cycle

Updated: May 29, 2025

Still, the ordinary Otto-cycle internal combustion engine can be rendered almost silent by the utilisation of adequate muffling devices, which, in the Zeppelin, are more possible of incorporation than in the aeroplane, because the extra weight imposed by this acquisition is a minor consideration in comparison with the lifting power of the vessel.

Frederick Arthur Ambrose Talbot - Aeroplanes and Dirigibles of War