"John.E" wrote in message m...
This was applied in my exam... (sailing not motoring)

I got about two minutes to fix my position from a 3point/running fix and I
was sent then below decks (with curtains closed and no outside view)...
Once below I was then supplied with my target...
(a bouy about 6-7 Nm away along the Solent, a very busy stretch of water
full of commercial and pleasure traffic)
I was allowed the following info...
crew were permitted to supply shape of any bouy passed within
5-10mtrs... (not colour or markings)
crew could supply compass heading if course requested heading could not
be achieved... (under sail, no motors)
crew could supply speed through water from log reading... (no VMG or
other compute details)
crew could supply current depth from echo sounder... (I assume the a
leadline is concidered to be aboard)
charts of given exam area and tidal atlas...
The examiner would also feed me various sound signals just to spcie things
up!

There you have it, the only info available was information that could be
gleaned without the use of any electronic device and no engines used.

JohnE

Thanks John,

Excellent description.

With so many clues and imputs it seems to be fairly basic. With the
shapes of bouys who needs to know the color, and with the spacing
being far enough apart its real easy to reckon. With sound signals and
depth reading you should be able to stay in a channel and know exactly
were you are, or know when your getting out of it, and perhaps plot
your progress thru any area that has a bottom that varies in depth.
All this information that can be combined on any detailed chart for a
fairly accurate fix.

One mistake., You said all the information must be gleened without the
use of any electronic aids. And unless your using a lead line you were
cheating.

Joe
MSV RedCloud



"Joe" wrote in message
om...
"One of the tests involves sitting at the chart table, with the ports
blacked
out, and predicting your position to within a few metres.

In other words, you have to sail (and navigate) the boat "blind".

No external imput at all.

How can this be done?

Joe
MSV RedCloud