What would you do? Vessel constrained by draught in Traffic Separation Scheme, with vessel NUC

Vessel constrained by draught in traffic separation scheme, risk of collision exists with vessel not under command. What would you do?

[@smith1760]

Hello. If we have a situation where we're PDV vessel and RAM vessel crossing from stbd side. Rule 15 cant be applied here because we are not both power-driven vessels, so we are not restricted to alter to course and pass ahead of this vessel?

[@josephquinn8019]

not enough information. you gave an answer to suffice someone grading a test. just because the nuc is facing you does not mean she has forward motion. the vessel nuc may actually be drifting away from your port.

[@maritimetrainingandconsult7750]

Thanks for your comments, note that the video clearly states that risk of collision exists. Therefore the vessel CBD has to keep out of the way of the vessel NUC, see Rule 18 (d) (i). If the vessel is drifting away from you then risk of collision would not exist. If you don't fully understand don't hesitate, contact me details are on the closing screen of the video

[@albinjames2127]

Why we can't alter to starboard then two ship passes Parallel to each other after that at according to situation we can slow speed and decrease cpa..?
Alterations to port is difficult

[@maritimetrainingandconsult7750]

Hi thanks for your question. The vessel constrained by her draught (CBD) has to keep out of the way of the vessel not under command (NUC) see Rule 18 (d) (i).
Th vessel CBD cannot alter course to starboard and parallel the other vessels (NUC) course as this would contravene Rule 10 (b).
Reducing speed is an option, however Rule 8 (c) states, "If there is sufficient sea room an alteration of course alone may be the most effective action".......... So in this case altering course to port would be the most effective course of action. Any alteration of course must be large enough to be readily apparent to the other vessel (NUC) and the effectiveness of the action must be monitored until the situation is finally past and clear. Hope that helps explain. Andy

[@maritimetrainingandconsult7750]

Thanks for your comment the main reason for not paralleling the other vessels course, is it would not resolve the situation. There are other reasons see Rule 10.