"Donal" wrote in message
...

"Joe" wrote in message
om...
"Donal" wrote in message
...
Are you claiming that you can maintain a proper lookout with radar
alone?


Thats what I'm claiming Donal. I would not suggest it running a
strange river for the first time, but if you have navigated the same
area many times and you know it like the back of your hand then you
can safely run it with a quality fine tuned radar.

Emmmm... Aren't we discussing the Coll Regs? The International Rules for
the avoidance of Collisions??

I don't see how "familiarity" with a particular stretch of water can help
you avoid a collision.



So where in the Colregs does it say you can't run on radar alone? Of course,
one should always have a visual (and sound) watch, but that is moot if there is
effectively zero visibility. And yet many vessels maintain their normal
schedule in thick fog.

Or are you claiming that local knowledge is not an advantage in the fog? Such
knowledge would certainly help one to keep the boat on a proper course, in its
proper place in a channel.

The problem is that small boats without radar, that are not good reflectors,
will be invisible. They have no business being out in fog.


--
-jeff
"Assumptions shall not be made on the basis of scanty information" ColRegs,
Rule 7(c)