Celestial Navigation - Page 2 - SailNet Community
Reply
 
LinkBack Thread Tools
post #11 of 144 Old 01-14-2011
Senior Member
 
AdamLein's Avatar
 
Join Date: Nov 2007
Location: SF Bay area
Posts: 1,914
Thanks: 5
Thanked 6 Times in 5 Posts
Rep Power: 8
 
I have had more than one occasion where my Garmin handheld picked up zero satellites when I had a clear view of the horizon. At least once was while sailing in open waters, and the condition lasted a couple of hours that time. I gave up waiting, but it worked again the very next day (no change of batteries or anything).

s/v Laelia - 1978 Pearson 365 ketch
s/v Essorant - 1972 Catalina 27
AdamLein is offline  
Quote Quick Reply Share with Facebook
Sponsored Links
Advertisement
 
post #12 of 144 Old 01-14-2011
Senior Member
 
Boasun's Avatar
 
Join Date: Feb 2007
Location: New Orleans, LA
Posts: 3,070
Thanks: 1
Thanked 0 Times in 0 Posts
Rep Power: 10
   
Please note: I was navigating commercially across the Oceans long before they had GPS. And really don't need a GPS to get me from point A to Point B.

1600 Ton Master, 2nd Mate Unlimited Tonnage

To view links or images in signatures your post count must be 10 or greater. You currently have 0 posts.
Maritime Instructor
To view links or images in signatures your post count must be 10 or greater. You currently have 0 posts.

S/V Rapture
Boasun is offline  
Quote Quick Reply Share with Facebook
post #13 of 144 Old 01-14-2011
Senior Member
 
Omatako's Avatar
 
Join Date: Sep 2003
Location: Auckland New Zealand
Posts: 2,537
Thanks: 1
Thanked 32 Times in 29 Posts
Rep Power: 12
 
Quote:
Originally Posted by Boasun View Post
Please note: I was navigating commercially across the Oceans long before they had GPS. And really don't need a GPS to get me from point A to Point B.
Me too but now that I have GPS . . . . . it's a little like trying to find a call box when I could have a satellite phone in my hand.


To view links or images in signatures your post count must be 10 or greater. You currently have 0 posts.

__________________

"Two possibilities exist: Either we are alone in the Universe or we are not. Both are equally terrifying."

Arthur C. Clarke
Omatako is offline  
Quote Quick Reply Share with Facebook
post #14 of 144 Old 01-14-2011
Senior Member
 
AdamLein's Avatar
 
Join Date: Nov 2007
Location: SF Bay area
Posts: 1,914
Thanks: 5
Thanked 6 Times in 5 Posts
Rep Power: 8
 
Quote:
Originally Posted by Omatako View Post
Me too but now that I have GPS . . . . . it's a little like trying to find a call box when I could have a satellite phone in my hand.
... which might be a good idea, so that you aren't all rusty at finding call boxes once The Man or The Sun or Zeus or whoever comes and shuts down your satellite phone. Assuming you're concerned about that.

s/v Laelia - 1978 Pearson 365 ketch
s/v Essorant - 1972 Catalina 27
AdamLein is offline  
Quote Quick Reply Share with Facebook
post #15 of 144 Old 01-14-2011
TQA
Bombay Explorer 44
 
TQA's Avatar
 
Join Date: Apr 2009
Posts: 2,888
Thanks: 0
Thanked 77 Times in 73 Posts
Rep Power: 7
 
The OP asked for any book recomendations.

Celestial Navigation for Yachtsmen by Mary Blewitt demystifies the process.

I liked it and know of many others who also learned from it.

BTW GET A PLASTIC SEXTANT TO LEARN ON! Lots on fleabay. You might even find one is a marina skip!
TQA is online now  
Quote Quick Reply Share with Facebook
post #16 of 144 Old 01-14-2011
old guy :)
 
rikhall's Avatar
 
Join Date: Feb 2008
Location: Fredericton, NB, Canada
Posts: 1,060
Thanks: 13
Thanked 14 Times in 12 Posts
Rep Power: 8
 
Back to the original question:

Ya - if you feel like it - it is not hard to learn. Trig is NOT my strong point, but, you don't need to understand trig to do elestial nav.

My wife and I both took Celestial Nav (and both passed it) with the Canadian Power Squadron group - and it was fun. Taking sites is not all that hard to do and neither is working out the positions. Just takes patience, practice and someone who can teach it to you.

If you are inclined - go for it.

Rik

Irwin Citation 34
Mystery
rikhall is offline  
Quote Quick Reply Share with Facebook
post #17 of 144 Old 01-14-2011
Senior Member
 
jackdale's Avatar
 
Join Date: Dec 2008
Location: Calgary, AB, Canada
Posts: 9,028
Thanks: 27
Thanked 59 Times in 56 Posts
Rep Power: 7
 
CN is really a case of use or lose it. I took the course 20 years ago. Trying to get back into it using Tom Cunliffe's book.

__________________
ISPA Yachtmaster Offshore Instructor Evaluator
Sail Canada Advanced Cruising Instructor
IYT Yachtmaster Coastal Instructor
ASA 201, 203, 204, 205, 206, 214
As I sail, I praise God, and care not. (Luke Foxe)
jackdale is offline  
Quote Quick Reply Share with Facebook
post #18 of 144 Old 01-14-2011
Junior Member
 
Join Date: Jan 2011
Posts: 3
Thanks: 0
Thanked 0 Times in 0 Posts
Rep Power: 0
 
If it works....there for it will at some point break.
derfus is offline  
Quote Quick Reply Share with Facebook
post #19 of 144 Old 01-15-2011
Senior Member
 
Join Date: Jun 2006
Posts: 113
Thanks: 0
Thanked 0 Times in 0 Posts
Rep Power: 10
 
I have often used CN to back up GPS and vice versa. It's a good tool to have in your toolbox. You never know when it might just save your butt.

For me it offers a direct connection to all the mariners that have gone before and that alone makes it worth learning.

Also, I believe as sailor anything increases your connection to environment is a good thing. When I sail long distances I get into a routine of regularly logging such things as sea state, barometer reading, wind direction and strength, clouds, and a host of other variables that affect sailing. CN dovetails very nicely into this more traditional, less automated, mode of navigation and sailing. Taken as whole, this practice has taught me more about the art of sailing and made me much more appreciative of the unique gifts that sailing affords than I believe could ever get from simply pushing a button on a GPS.

Don't get me wrong I have pushed more than my fair share of buttons

Do what you makes comfortable and increases your sense of security and confidence because that is what will help you over the horizon or across the bay. How you do it is often times less important simply doing it.

Just my .02 cents.
svs3 is offline  
Quote Quick Reply Share with Facebook
post #20 of 144 Old 01-15-2011
美国华人, 帆船 教授及输送
 
Join Date: Sep 2006
Location: MD
Posts: 2,531
Thanks: 24
Thanked 23 Times in 15 Posts
Rep Power: 9
 
Not try to change the topic here.

If you need to ditch you SV and climb up to the life raft. Beside the other essentials, what would you rather take, GPS with spare battery or your sextant charts, calculator and etc.

Let here from the both sides.


Fine Print:
I am old school. Integrity is to do the right thing even when no one is watching.
rockDAWG is offline  
Quote Quick Reply Share with Facebook
Reply

Quick Reply
Message:
Options

Register Now



In order to be able to post messages on the SailNet Community forums, you must first register.
Please enter your desired user name, your email address and other required details in the form below.
Please note: After entering 3 characters a list of Usernames already in use will appear and the list will disappear once a valid Username is entered.


User Name:
Password
Please enter a password for your user account. Note that passwords are case-sensitive.

Password:


Confirm Password:
Email Address
Please enter a valid email address for yourself.

Email Address:
OR

Log-in









Human Verification

In order to verify that you are a human and not a spam bot, please enter the answer into the following box below based on the instructions contained in the graphic.




Currently Active Users Viewing This Thread: 1 (0 members and 1 guests)
 
Thread Tools
Show Printable Version Show Printable Version
Email this Page Email this Page



Similar Threads
Thread Thread Starter Forum Replies Last Post
Celestial Navigation Fun! UnlikelyVoyager General Discussion (sailing related) 12 07-10-2010 11:15 AM
Celestial Navigation PyrateKing Seamanship & Navigation 22 01-01-2009 12:28 PM

Posting Rules  
You may post new threads
You may post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is On
Trackbacks are On
Pingbacks are On
Refbacks are On

 
For the best viewing experience please update your browser to Google Chrome