4 ms·
Different idea: https://en.wikipedia.org/wiki/Voith_Schneider_Propeller https://en.wikipedia.org/wiki/Voith_Schneider_Propeller
by jl2718 4y ago
Different idea: https://en.wikipedia.org/wiki/Voith_Schneider_Propeller https://en.wikipedia.org/wiki/Voith_Schneider_Propeller