On reaching a speed of about two knots the engines can be kept moving continuously and speed be increased gradually until the required towing speed is attained.
Ekufikeleleni kwisantya samalunga nomlinganiselo wesantya senqanawa ezibini ii-injini zingagcinwa zihamba rhoqo kwaye isantya zinganyuswa ngokuthe chu de isantya sokutsala esifunekayo sifumaneke.