4 ms·
Ships have a siren (big horn). 5 short blasts is "you're about to hit me". The tanker absolutely should have sounded that as soon as it became apparent that so
by mjlee 8y ago
Ships have a siren (big horn). 5 short blasts is "you're about to hit me". The tanker absolutely should have sounded that as soon as it became apparent that something was wrong.
They also absolutely have radars, and normally ones that will sound an alarm when a collision is possible. I suspect the bridge crew disabled the alarm in this case.
- CydeWeys 8y agoThe tanker was already in contact over radio with the frigate. Voice comms (when established) are better than horns.
- mjlee 8y agoVHF is no replacement for Colregs - https://www.marinemec.com/news/view,opinion-avoid-using-vhf-and-follow-colregs-to-prevent-accidents_51651.htm https://www.marinemec.com/news/view,opinion-avoid-using-vhf-... There have been multiple collisions attributed to two ships talking to each other, not realising that the ship they were looking out the window was not the ship they were talking to. Additionally, the sirens are pretty loud and the Captain/Navigator's cabins are normally in a position to hear them. Any CO who hears 5 short blasts in the vicinity of their ship is going to sprint for the bridge. In short, 5 short blasts is what IRPCS tells you to do - so you should do it.