Two Power-Driven Vessels: Overtaking 5.4.1

The overtaking vessel A is the give-way vessel. The other vessel B is the stand-on vessel. As the give-way vessel, A must take EARLY and SUBSTANTIAL action to keep clear of the stand-on vessel B. If both vessels are power-driven, sound signals are required. Vessel A must blow one short blast and alter course to starboard, or blow two short blasts and alter course to port, and Vessel B must return the same sound signal(s) to indicate understanding.

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[jamesrawes]

What is with your vessel B returning the same sound signals, this is not stated in the IRPCS.

[BoaterExam]

@jamesrawes Although the act of replying with confirmation may not be stated, this is a widely practiced norm in North American waters.

[cbwein333]

what if the stand on vessel doesnt know what it means?

[BoaterExam]

@cbwein333 Great question. This is why we stress that "EARLY and SUBSTANTIAL action" must be taken. This will ensure a safe overtaking even if the stand-on vessel is unaware that you are overtaking her or does not understand your signals.

[MrJholand7]

@BoaterExam to.avoid.collision,the.vessel.­in.doubt.by.giving.at.least.fi­ve.short.and.rapid.blast.on.th­e.whistle..Such.signal.may.be.­supplemented.by.a.light.signal­.of.at.least.five.short.and.ra­pid.flashes..this.is.from.rule­.34.of.Collision.Regulation.to­.Avoid.Collision.at.Sea..(COLR­EG)

[cbwein333]

@BoaterExam thank you!

[bolivarreno]

a big help 2 us.,.,thnks