1. Assignment 1 Great Brisbane and Naomi Maru ( March 25 1987 )

2.  Vessel Types  Before the collision  Damages done to the vessels  COLREGS Rules  COLREGS rules breached and ignored, solutions  Conclusion  References

3.  Vessel: Great Brisbane.  Flag: Pana.  IMO: 7700817.  Type of Operation: General cargo Ship.  Damage to vessel: Nil.  Departure Point: Sasebo, Japan.  Departure Time : N/A.  Destination : Thevenard, SA.

4.  Vessel: Naomi Maru.  Flag: Aus.  IMO: N/A.  Type of Operation: Fishing Vessel.  Damage to vessel: Substantial.  Departure Point: N/A.  Departure Time : N/A.  Destination : Green Cape NSW.

5.  1: The Chief officer gave no clear reasons for his actions which he timed as 1611. Action taken under Rule 18, to avoid a fishing vessel would be incompatible with his assertion that no fishing shape was seen by him.  2: If action was being taken under Rule 17 and NAOMI MARU, as a vessel not engaged in fishing.  3: If doubt existed concerning NAOMI MARU’S intentions, in the latter instance, an obligation existed under Rule 34 GREAT BRISBANE to indicate such doubt by giving five or more short and rapid blasts on the whistle.  4: GREAT BRISBANE maintained that NAOMI MARU was in his port side at the time he altered course and that he altered to 250*  5: At 1600, that GREAT BRISANE would pass circumstance had changed for any reason and thus no proper lookout was kept as required by rules 5.  6: NAOMI MARU remained aware of the developing collision risk and his obligations under rules 15 and 16 to keep clear.

6.  Great Brisbane :  Suffered minor indentation to the hull, paintwork was scraped and there was minor damage to the accommodation ladder platform.

7.  NAOMI MARU: had bow damage allowing ingress of water and mast stays were broken, displacing the mast.

8.  Rule 7: Covering risk of collision, which warns that assumptions shall not be made on the basis of scanty information, especially scanty radar information.  Rule 8: Covers action to be taken to avoid collision.

9.  Rule 7 solution: Vessels must use all available means to determine the risk of a collision, including the use of radar (if available) to get early warning of the risk of collision by radar plotting or equivalent systematic observation of detected objects  Rule 8 solution : Actions taken to avoid collision should be: positive, obvious, made in good time

10.  Rule 5: Requires that "every vessel shall at all times maintain a proper look-out by sight and hearing as well as by all available means appropriate in the prevailing circumstances and conditions so as to make a full appraisal of the situation and of the risk of collision.  Rule 7: Covering risk of collision, which warns that "assumptions shall not be made on the basis of scanty information, especially scanty radar information“.  Rule 15: Crossing situations.  Rule 16: action to be taken by the give-way vessel.  Rule 26: covers light requirements for fishing vessels.

11.  Rule 5: Every vessel must at all times maintain a proper look-out by sight (day shape or lights by eyes or visual aids) and hearing (sound signal or Marine VHF radio) as well as by all available means in order to make a full assessment of the situation and risk of collision.  Rule 7 solution: Vessels must use all available means to determine the risk of a collision, including the use of radar (if available) to get early warning of the risk of collision by radar plotting or equivalent systematic observation of detected objects  Rule 15: Crossing situations When two power-driven vessels are crossing, the vessel which has the other on the starboard side must give way and avoid crossing ahead of her.  Rule 16: The give-way vessel The give-way vessel must take early and substantial action to keep well clear  Rule:26 (e) : A vessel when not engaged in fishing shall not exhibit the lights or shapes prescribed in this Rule, but only those prescribed for a vessel of her length.

12.  1: If both vessels had maintained course and speed collision could not have occurred.  2:the chief officer of GREAT BRISBANE contributed to the collision in that he did not comply with rule 7 as he.  (a) failed to use all available means to determine risk of  collision:  (b) failed to make proper use of radar equipment; and  (c) made assumptions on the basis on scanty information.  (d) Was not positive.  (e) Did not comply with rule 8

13.  1: The Skipper of NAOMI MARU contributed to the collision in that:  a) He failed to maintain a proper lookout, in contravention of Rule 5.  b) He also made assumptions on the basis of scanty information, in  contravention of Rule 7(c).  c) When GREAT BRISBANE became a crossing vessel he did not comply  with Rule 15 and failed to keep out of the way for a vessel on  his own starboard side.  d) He did not comply with Rule 16 through failing to take early and  substantial action to keep well clear.

14.  http://www.solarbright.com.au/images/australia-flag.gif  http://dlc.k12.ar.us/David.Nance/Images/Flags/panama%20flag.g if   http://en.wikipedia.org/wiki/International_Regulations_for_Preven ting_Collisions_at_Sea  http://www.imo.org/about/conventions/listofconventions/pages/co lreg.aspx  http://www.atsb.gov.au/media/25043/mair17_001.pdf