When a ship navigates in head seas, it's hull is subjected to sever
shocks which induce violent ship motions. As well trained and
experienced navigators, we are able to respond to this by altering the
ship's course and speed as required. However, to accomplish safe
navigation in head seas, it's advisable to have more reliable ship
handling techniques backed by theoretical knowledge as to why these
phenomena are created and how to avoid the generation of these critical
effects in addition to possessing sea-going experience.