The FSCIR A1 ice class ships are designed to navigate in non-Arctic waters, but they may operate in polar waters under specified ice conditions. This work took into consideration speed and ice conditions limiting movement of the ship in ice during independent voyage and with icebreaker escort. Same time, the safety of the ship was analysed, taking into account the ship's draft, so that the restrictions resulting from the width of the hull ice strengthening belt and the possibility of damage to the propeller were met.
Tadeusz Pastusiak (Thu,) studied this question.