This is principally because the inner engines in turbine-driven ships take some time to run off their ahead revolutions and develop effective astern power.
Le yintloko kuba i-injini engaphakathi kwityhubhi eqhuba inqanawa ithatha ixesha lokubaleka kwintloko yonikelo nephuhlisa ukukhula kwamandla kwesibonda esiphambili senqanawa.