On Nov 27, 6:52*pm, Wayne.B wrote:

Did they try to cut too close to G'3' ?

There has been a remarkable lack of information about this event aside
from newspaper references to "uncharted rocks". However, a friend who
grew up on Peaks Island (across the channel) told me that his friends
heard the impact and it was so loud that they ran down to the beach to
see what it was. According to them, the boat was inside G "3".
According to the Bluecharts, you should be able to do that but it
would be foolish. Damage was on the port side and the boat was headed
west.

Not shown on either chart is the ledge around the beacon that is
nearly dry at low tide. Much of it would be inside the symbol though
due to the scale.

--
Roger Long

Roger Long wrote:

On Nov 27, 6:52*pm, Wayne.B wrote:

Did they try to cut too close to G'3' ?

There has been a remarkable lack of information about this event aside
from newspaper references to "uncharted rocks". However, a friend who
grew up on Peaks Island (across the channel) told me that his friends
heard the impact and it was so loud that they ran down to the beach to
see what it was. According to them, the boat was inside G "3".
According to the Bluecharts, you should be able to do that but it
would be foolish. Damage was on the port side and the boat was headed
west.

Not shown on either chart is the ledge around the beacon that is
nearly dry at low tide. Much of it would be inside the symbol though
due to the scale.

Greeteings, Roger,

It's not nice to laugh at others' troubles, but i had to, just a
little, when I read about it in the P-H.

I recently did some work based on the "Digital Chart of the World"
(ONC aeronautical charts digitized by ESRI) and found the digitizing
hopelessly wrong in some places -- relevant because I am sure the NOAA
vector charts are in large part made by contractors' digitizing of
paper charts, probably mylar originals).

We are off for Bermuda tomorrow, now that this low is out of the way.

Best,

Michael Porter Marine Design
mporter at mp-marine dot com
www.mp-marine.com

On Nov 28, 9:27*am, Michael Porter
I am sure the NOAA
vector charts are in large part made by contractors' digitizing of
paper charts, probably mylar originals).


I've seen or heard several references to the basis for all vector
charts being work done by the Russians during the cold war in case
they ever needed to invade. It's a good story and I suspect that
it's true since the timing and investment make it more plausible that
Garmin et. al. purchased and updated work done over a period of
several years than that they came up with it from scratch. I'd like
to know for sure though.

Have a great passage to Bermuda.

--
Roger Long

On Sat, 28 Nov 2009 10:27:10 -0400, Michael Porter
wrote:

We are off for Bermuda tomorrow, now that this low is out of the way.

There's another big low getting ready to build out from Cape Hatteras
in 3 days or so. Have a safe trip.