1、3conductofvesselsinsightofoneanothernRule11-rule18n3.1 Application(Rule 11)Rules in this section apply to vessels in sight of one anothernIn sight of one another:one can be observed visually from the other nFactors that make the sighting not occur:different intensities of navigation lights;patches o
2、f low fog obscuring the bridge of one vessel but not her mast head lightsnA vessel must comply with the rules and will not be excused for not complying with the appropriate rule of section II if it is considered that failure to sight the other vessel was due to a bad visual look out.3.2 Sailing vess
3、els1.ApplicationnTwo sailing vesselsnApproaching one anothernSo as to involve risk of collisionNot apply to three sailing,or to power driven vessel,or to vessel engaged in fishing3.2 Sailing vessels2.Responsibilities between two sailing vesselsA:Keeps clear of B,C,DB:Keeps clear of CStands on for A,
4、DD:Keeps clear of B,CStands on for AC:Stands on for A,B,D3.2 Sailing vessels2.Responsibilities between two sailing vesselsnA sailing vessel approaching another sailing vessel from a direction more than 22.5 degree abaft her beam is an overtaking vessel and must keep clear of the other vessel(rule 13
5、 over ride 12)3.2 Sailing vessels3 in Ambiguous casenSailing vessels with the wind on the port side sees the green side light of another sailing vessel to windward at night and is unable to determine whether the other vessel has the wind on the same sidenSailing vessel which has the wind on the star
6、board side and sees the red sidelight of another sailing vessel to windward at night may also be unable to determine whether the other vessel has the wind on the port side or on the starboard side3.2 Sailing vessels3 in Ambiguous case(in doubt):shall keep clear of the other sailing vesselBACA and C
7、is overtaking B,so they must keep out of the way of BCBAA keeps clear of CStands on for BIf in doubt shall keep clear3.2 Sailing vessels4 conduct give vessel-rule 8,16Stand on vessel:rule 17A stands on for B and CCBA3.3 Overtaking(Rule 13)1 Definition for overtaking situation Two vessels:proceeding
8、in the same general direction as the other Speed:overtaking vessel is fast than overtaken vessel3.3 Overtaking(Rule 13)2 Characteristics of the situationnBearing:from a direction more than 22.5degree abaft overtaken vesselnDistance:in a position where the overtaken vessels stern light is visible at
9、night.nSpeed:coming up with the overtaken vessel3.3 Overtaking(Rule 13)3 In doubt:The faster vessel shall assume that this is the situation and keep out of the way3.3 Overtaking(Rule 13)4 application:nAny vesselnIn sight of one another3.3 Overtaking(Rule 13)5 the relationship with other rulesOverrid
10、es those rules:9(b,c,d,e);10(i,j);12;18Note:the above mentioned is refer to the duty vessel,as to the overtaken vessels,they should not hold these rules against other rules.3.3 Overtaking(Rule 13)6 duties of overtaking vesselnKeep out of the way and pass at a safe distancenTake action at an early st
11、agenFollow the requirements stipulated in rules such as rule 9 and so onnPast and clear:she is not relieved of the duty of keeping clear until she is finally pass and clear.avoid crossing other vessel.3.3 Overtaking(Rule 13)Has completely passed the other-far enough ahead so that her maneuver cant e
12、mbarrass the vessel she has overtaken.Shanghai:600mLateral distance:D=3Xcos22.52.8nmIf the lateral distance 2.8 the overtaking situation is still existing.3.3 Overtaking(Rule 13)7 duties of overtaken vesselnComply with the requirements of rule 17nProper lookoutnStand by for immediate maneuveringnWar
13、ning signal3.4 Head on situation(rule 14)1 definitionnTwo power driven vesselsnMeeting on reciprocal or nearly reciprocal coursenSo as to involve risk of collisionNote:1)power driven vessel-does not include vessel not under command,nIn doubt:assume that the situation exists3.4 Head on situation(rule
14、 14)3)Course-heading,6663.4 Head on situation(rule 14)2 Dangerous head on:Starboard to starboard,Dangerously closeLess than safe distance3.4 Head on situation(rule 14)Action in the situation of dangerous head-on situation:nTake action in ample timenSubstantial alteration to starboardnPort to port pa
15、ssing3.4 Head on situation(rule 14)3 Duty and conductnNeither vessel has the right of waynNeither vessel is under obligation to hold course and speednBoth are required to turn to starboard3.4 Head on situation(rule 14)4 Characteristic of the situationnSpeed of approach:maximumnThe effect of alterati
16、on of course:maximumnDamage in case of collision:maximum3.4 Head on situation(rule 14)5 cause of collisionin most case,one of the two vessels turn to port,especially in case of passing dangerously close to each other starboard to starboard3.5 Crossing situation(rule 15)1 DefinitionnTwo power driven
17、vesselsnCrossingnSo as to involve risk of collision3.5 Crossing situation(rule 15)2 Principles for determing the situationCrossingCrossingOvertakingHead on3.5 Crossing situation(rule 15)nPower driven vesselsnHeading_steady on a coursenOpen sea(not narrow channel)nDistance:the other vessels masthead
18、light is in sight3.5 Crossing situation(rule 15)3 DutiesnGive way vessel(which has the other on her own starboard side,and could only see others red light at night):keep out of the way,avoid crossing ahead of the other vesselnStand on vessel(which has the other on her own port side,see green light):
19、keep course and speed 3.5 Crossing situation(rule 15)4 Action(give way vessel)nIf the circumstances of the case admit,avoid crossing ahead of the other vesselnBy altering course to starboard so as to pass astern of the other vesselnBy reducing speed,allowing the other vessel to cross ahead nBy alter
20、ing to port and turning through some 3603.5 Crossing situation(rule 15)naction3.5 Crossing situation(rule 15)5 Special casenVessel lying stopped:be deemed as a vessel under way(apply)nIn doubt:deemed the situation is exists,or overtaking situation is exists(apply)nOne power driven vessel and a saili
21、ng vessel(or other kind of vessels)(not apply)3.5 Crossing situation(rule 15)5 Special casenThree or more than three vessels approaching together(not apply)nAt bends of narrow channel(not apply)nCrossing the channel(apply)nMeet with a power driven vessel moving astern(not apply)nMeeting with a power
22、 driven vessel whos heading is unstable(not apply)3.6 Action by given-way vessel(rule 16)Every vessel which is directed to keep out of the way of another vessel shall,so far as possible,take early and substantial action to keep well clear.3.6 Action by given-way vessel(rule 16)1 ApplicationApply to
23、give-way vesselRule 12 sailing vessel(has wind on port side,to windward)13 overtaking vessel 15 crossing situation,vessel who has other on her starboard side 18 vessel whos maneuverability is better than other 3.6 Action by given-way vessel(rule 16)2 actionRefer to Rule 8:Take early and substantial
24、action3.7 Action by stand-on vessel(rule 17)1 ApplicationStand on vessel:rule 12,13,15 and 18(not include rule 14)3.7 Action by stand-on vessel(rule 17)2 keep course and speednMeaning:does not necessarily have to remain on the same compass course:nTo take pilot nReduce speed to avoid danger of navig
25、ation1)Adjusting compass(not allowed)3.7 Action by stand-on vessel(rule 17)2)Time when the rule appliesFrom:in sight of one another and when risk of collision existUntil:finally past and clear;and may take action when it become apparent that the give way vessel is not taking appropriate action;or co
26、llision can not be avoided by the action of give way vessel alone.3.7 Action by stand-on vessel(rule 17)3 permitted action1)application:rule 17(a)ii permits a stand on vessel to take actions at an earlier stage,to avoid collision by he maneuver alonenThe give way vessel is either failing to take act
27、ion in ample time or failing to take sufficient action to achieve a safe passing distancenA succession of small alteration which is not obvious to stand on vesselnGive way vessel refuse to give way3.7 Action by stand-on vessel(rule 17)2)Earliest momentIn open sea:2nm(crossing situation)(depends on s
28、ize,maneuverability of vessels,the rate of approach)3.7 Action by stand-on vessel(rule 17)3)ActionsnTo give a warning signalnCalling master,change the steering mode to manual,and put the engine on stand by nAvoid turning to port to avoid collision with another power-driven vessel 3.7 Action by stand
29、-on vessel(rule 17)4 compulsory action by the stand on vesselWhen the stand on vessel finds herself so close that collision can not be avoid by the give way vessel alone3.7 Action by stand-on vessel(rule 17)nAction moment nDistance between the two vessel depends on the:direction and speed of approac
30、h give way vessel maneuvering characteristics:twelve times her own length3.7 Action by stand-on vessel(rule 17)2)Action Best aid to avoid collisionsTurning towards the other vessel may be the best action 3)If the collision is considered to be inevitable:reduce the effect of collision as much as poss
31、ible to achieve a glancing blow rather than a direct impact3.7 Action by stand-on vessel(rule 17)5 obligation of the give way refusedRule 17(d)Give-way vessel is not relieved of her obligation to take early and substantial action to achieve a sage passing distance.3.7 Action by stand-on vessel(rule
32、17)6 the four stages in a collisionAt long range,action permitted Keep course and speedA c t i o n permitted,A c t i o n required3.8 Responsibility between vessels(Rule 18)1 Responsibilities stipulated by the regulationnShall not impede:9(2,3,4),10(9,10),18(4,5)nGive way and stand on:12,13,15,18nBot
33、h shall take action:14,193.8 Responsibility between vessels(Rule 18)2 Principles for the determination of responsibilitiesnOrdinary practice of seaman:12,13,14,15,19nIn order of vessels maneuverability3.8 Responsibility between vessels(Rule 18)3 ResponsibilitiesVessel not under command,vessel restri
34、cted in her ability to maneuverVessel engaged in fishingSailing vesselPower driven vessel3.8 Responsibility between vessels(Rule 18)4 the relationships between rulesRule 12,14,15Rule 18(1,2,3)Rule 9(2,3,4,);10(9,10),18(4,5)Rule 133.8 Responsibility between vessels(Rule 18)5 action to be takennGive w
35、ay vessel:Rule 16nStand on vessel:Rule 173.8 Responsibility between vessels(Rule 18)6 Special vesselnSpecial vessel:sea plane,hovercraft,hydrofoilsnDuties:they shall keep well clear of all other vessels and avoid impeding others navigation,but,when risk of collision exists,those special vessels shall comply with the relevant rules.
