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Ursprungligen postat av
Dumdryg
Det enda misstaget snipan begått är att inte gira i tid och då är det mer intressant att diskutera hur det kan komma sig. Som t ex på vilket avstånd det blir uppenbart i snipan att fartyget bakom befinner sig på kollisionskurs. För det är inte uppenbart 500 meter bort innan du vet om fartyget tänker gira närmare den gröna pricken och snipan ligger till höger i farleden så det finns gott om utrymme att passera för fartyget.
Australiens myndighet Department of Transport and Main Roads har en mkt mer sund inställning till båttrafik. Hade dessa rekommendationer tillämpats i Sverige hade vi ej haft detta problemet. Utdrag från deras egna säkerhetsblad Safe boating in ship navigation areas
Interactions between ships and small boats:
The chances of large ships and small boats interacting
is high in shipping channels, pilot boarding grounds,
anchorages, swing basins or port berths. Skippers should
avoid or keep clear of these areas.
Ships can approach quickly and silently and do not have
brakes. Large ships often travel at speeds over 20 knots
and can have a stopping distance equal to 28 football fields
(2.5 nautical miles).
It only takes about 15 minutes from when a ship is spotted
on the horizon by a small boat until it might hit you. If the
engine fails on a small boat this time can be fatally short.
When travelling in narrower channels, such as entering a
port, large ships can have very low under-keel clearance and
cannot turn or slow down. Large ships can only move in the
designated shipping channels. Smaller boats need to avoid
them and give them right of way.
A small boat rarely appears on a ship’s radar and can be
unseen from the helm of a ship. Large ships have a blind
spot that can extend several nautical miles because the
bow of the ship and cargo obscures the view
Quick safety tips
• Maintain a constant and proper lookout at all times,
using all means available.
• Avoid travelling in a designated shipping channel.
Keep to the outer edge if you must do so.
• Monitor the appropriate VHF channel for the area
when near a shipping channel to keep up-to-date
with local traffic movement information.
• Don’t rely only on mobile phones for marine
communications – the ship’s captain or pilot won’t
know your number and you don’t know theirs!
• Always cross a shipping channel at 90 degrees
behind a ship and only when it is clear and safe to
travel. Never cross in front of a large ship. If a small
boat breaks down or runs out of fuel, this can end
with disastrous results.
• Between sunset and sunrise, and when visibility is
restricted, show correct navigation lights.
• Don’t anchor near, or fish in, channels or near
navigation aids marking a designated shipping lane.