Pilot Charts

**GordMay** · 18-05-2005, 12:35

Pilot Charts for Passage Planning

A pilot chart, or atlas, amongst other things, provides a month-by-month, grid-by-grid graphical representation of wind speed and direction based on historical data. The idea being to enable passage planning using the probability of favourable wind speed and direction for different possible routes at different times of the year. It must be emphasized that these charts are compiled on historical data and the winds actually experienced on a particular route may be quite different to that shown on the charts. Having said that, they are most useful in planning a route to give one the best chance of getting favourable conditions, for example, taking advantage of seasonal winds such as the Trades, and many other very predicable winds throughout the world.

Goto NGA Digital Navigation Publications ~ Atlas of Pilot Charts:
http://pollux.nss.nima.mil/pubs/pubs_j_apc_list.html

These are downloadable, full colour pilot charts. They are fairly big so you will need either a fast link or plenty of time. You can view them online but if you wish to refer to them often it would be much faster to load them onto your own computer and then view them offline at your leisure.

By Invitation · 18-05-2005, 19:47

I gotta ask,

You seem to have a tremendous wealth of information which is great to have access to. What is it that you do? Your posts are always right on and very detailed. I would guess that your desk is also very clean.

Invitation

**GordMay** · 18-05-2005, 20:11

By Invitation once whispered in the wind:

You seem to have a tremendous wealth of information which is great to have access to. What is it that you do? Your posts are always right on and very detailed. I would guess that your desk is also very clean.

Invitation:
Thanks for the kind words.
You'd be absolutely wronge about my desk, which is often & currently a total disaster. Of course, I've been away a fortnight, so I've some excuse at this time.
I'm working as a project coordinator / inspector for a Mechanical-Electrical Engineering firm.
I spent the 1990's living aboard - cruising the Bahamas (winter) and operating "Southbound Marine" summers. Southbound Marine specialised in premium yacht re-fit projects.
Regards,
Gord

18-05-2005, 12:35	#1
GordMay Administrator Site Administrator Join Date: Mar 2003 Location: Thunder Bay, Ontario - 48-29N x 89-20W Boat: C.L.O.D. (Cruiser Living On Dirt) Posts: 9,443 Images: 232	Pilot Charts Pilot Charts for Passage Planning A pilot chart, or atlas, amongst other things, provides a month-by-month, grid-by-grid graphical representation of wind speed and direction based on historical data. The idea being to enable passage planning using the probability of favourable wind speed and direction for different possible routes at different times of the year. It must be emphasized that these charts are compiled on historical data and the winds actually experienced on a particular route may be quite different to that shown on the charts. Having said that, they are most useful in planning a route to give one the best chance of getting favourable conditions, for example, taking advantage of seasonal winds such as the Trades, and many other very predicable winds throughout the world. Goto NGA Digital Navigation Publications ~ Atlas of Pilot Charts: http://pollux.nss.nima.mil/pubs/pubs_j_apc_list.html These are downloadable, full colour pilot charts. They are fairly big so you will need either a fast link or plenty of time. You can view them online but if you wish to refer to them often it would be much faster to load them onto your own computer and then view them offline at your leisure. __________________ Gord May ~~_/)_~~ (Gord & Maggie - "Southbound") "If you didn't have time/$ to do it right in the first place, when will you get the time/$ to fix it?"

18-05-2005, 19:47	#2
By Invitation Registered User Join Date: Feb 2005 Location: Wakefield Rhode Island Posts: 246 Images: 25	Hey Gord May I gotta ask, You seem to have a tremendous wealth of information which is great to have access to. What is it that you do? Your posts are always right on and very detailed. I would guess that your desk is also very clean. Invitation

18-05-2005, 20:11	#3
GordMay Administrator Site Administrator Join Date: Mar 2003 Location: Thunder Bay, Ontario - 48-29N x 89-20W Boat: C.L.O.D. (Cruiser Living On Dirt) Posts: 9,443 Images: 232	Re: Hey Gord May By Invitation once whispered in the wind: You seem to have a tremendous wealth of information which is great to have access to. What is it that you do? Your posts are always right on and very detailed. I would guess that your desk is also very clean. Invitation: Thanks for the kind words. You'd be absolutely wronge about my desk, which is often & currently a total disaster. Of course, I've been away a fortnight, so I've some excuse at this time. I'm working as a project coordinator / inspector for a Mechanical-Electrical Engineering firm. I spent the 1990's living aboard - cruising the Bahamas (winter) and operating "Southbound Marine" summers. Southbound Marine specialised in premium yacht re-fit projects. Regards, Gord __________________ Gord May ~~_/)_~~ (Gord & Maggie - "Southbound") "If you didn't have time/$ to do it right in the first place, when will you get the time/$ to fix it?"

Thread Tools
Show Printable Version Email this Page
Display Modes	Rate This Thread
Linear Mode Switch to Hybrid Mode Switch to Threaded Mode	Rate This Thread:

Similar Threads
Thread	Thread Starter	Forum	Replies	Last Post
On-Line Pilot Charts	GordMay	Navigation	0	02-05-2004 06:20
Source for paper charts	sjs	General Sailing Forum	7	18-03-2004 02:44
Tide Charts	GordMay	Navigation	2	08-08-2003 10:21
NOAA Electronic Chart Updates	GordMay	Navigation	2	17-07-2003 20:20
MapTech charts in MaxSea	Gisle	Navigation	3	09-03-2003 03:18