Possible GPS replacement.. - SailNet Community
Seamanship & Navigation Forum devoted to seamanship and navigation topics, including paper and electronic charting tools.

 2Likes
Reply
 
LinkBack Thread Tools
post #1 of 15 Old 11-11-2018 Thread Starter
Senior Member
 
aa3jy's Avatar
 
Join Date: Jul 2006
Posts: 2,433
Thanks: 3
Thanked 109 Times in 101 Posts
Rep Power: 13
 
aa3jy is offline  
Sponsored Links
Advertisement
 
post #2 of 15 Old 11-11-2018
Member
 
Join Date: Jul 2017
Posts: 85
Thanks: 7
Thanked 3 Times in 3 Posts
Rep Power: 2
 
Re: Possible GPS replacement..

Sounds interesting. Ive been a little concerned how dependant we have become on GPS. And like the article mentions, it is extremely easy to jam or disable during any sort of conflict or by some ill willed group.

Is there anything that cant be solved with lasers?
CrispyCringle is offline  
post #3 of 15 Old 11-11-2018
bell ringer
 
Join Date: Aug 2008
Location: on way toward New orleans
Posts: 4,040
Thanks: 10
Thanked 108 Times in 101 Posts
Rep Power: 11
 
Re: Possible GPS replacement..

looks just the right size to replace a boat's compass, .................................................. .................................................. .............................. on an aircraft carrier

Don't blow air up my rear, be useful and blow it at the sails!
To view links or images in signatures your post count must be 10 or greater. You currently have 0 posts.
Don0190 is online now  
 
post #4 of 15 Old 11-11-2018
Master Mariner
 
capta's Avatar
 
Join Date: Jun 2011
Location: somewhere south of civilization
Posts: 6,865
Thanks: 134
Thanked 364 Times in 352 Posts
Rep Power: 8
 
Re: Possible GPS replacement..

And just who is going to maintain and calibrate that incredibly simple looking device?
I've been using satellite-based navigation since the very early 80's and it has yet to be turned off because of a conflict or terrorist threat, hacking or any other problem.
Perhaps Y'all who worry about a GPS failure could put that on your list of catastrophic occurrences somewhere between a meteorite sinking your boat or being in California when THE earthquake hits! lol
MarkofSeaLife likes this.

"Any idiot can make a boat go; it takes a sailor to stop one." Spike Africa aboard the schooner Wanderer in Sausalito, Ca. 1964.
“Believe me, my young friend, there is nothing - absolutely nothing - half so much worth doing as simply messing about in boats.” ― Kenneth Grahame, The Wind in the Willows

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

facebook.com/svskippingstone
capta is online now  
post #5 of 15 Old 11-12-2018
Old as Dirt!
 
svHyLyte's Avatar
 
Join Date: Nov 2008
Location: Tampa Bay Area
Posts: 3,443
Thanks: 25
Thanked 184 Times in 174 Posts
Rep Power: 11
 
Re: Possible GPS replacement..

Inertial navigation systems have been around for a very long time, in fact since WWII. It would seem to me that the latest iteration is rather more mental masturbation than not.

The simple, wise, back-ups for a GPS failure--either system wide or shipboard--are ones charts, compass, and, of course, s sextant and decent time piece. S'not complicated.

"It is not so much for its beauty that the sea makes a claim upon men's hearts, as for that subtle something, that quality of air, that emanation from the waves, that so wonderfully renews a weary spirit."
svHyLyte is offline  
post #6 of 15 Old 11-12-2018
Master Mariner
 
capta's Avatar
 
Join Date: Jun 2011
Location: somewhere south of civilization
Posts: 6,865
Thanks: 134
Thanked 364 Times in 352 Posts
Rep Power: 8
 
Re: Possible GPS replacement..

Quote:
Originally Posted by svHyLyte View Post

The simple, wise, back-ups for a GPS failure--either system wide or shipboard--are ones charts, compass, and, of course, s sextant and decent time piece. S'not complicated.
A sextant is hardly a reasonable back up for electronic navigation unless on is hundreds of miles offshore, or is using a sextant on pretty much a daily basis. One does not pick up a sextant and snap a shot, reduce it and do that another two times in 10 hours accurately, without a considerable amount of practice.
In the days when that was my only form of offshore navigation, a couple of months off, cruising around an island group or the Queensland coast for instance, and it would take me several days to get the knack back, and I was pretty proficient at it. It is not at all like riding a bicycle. lol
IMO, dead reckoning is a much more useful skill, especially for coastal or interisland sailing, should electronic navigation cease to function.
MarkofSeaLife likes this.

"Any idiot can make a boat go; it takes a sailor to stop one." Spike Africa aboard the schooner Wanderer in Sausalito, Ca. 1964.
“Believe me, my young friend, there is nothing - absolutely nothing - half so much worth doing as simply messing about in boats.” ― Kenneth Grahame, The Wind in the Willows

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

facebook.com/svskippingstone
capta is online now  
post #7 of 15 Old 11-12-2018
Senior Member
 
Join Date: Feb 2010
Location: Narragansett Bay
Posts: 19,075
Thanks: 82
Thanked 535 Times in 512 Posts
Rep Power: 11
   
Re: Possible GPS replacement..

Miniaturizing an inertial guidance system would be great. That thing is not practical yet.

For those that think cyber crime and terrorism, which is on an exponential rise, is going to pass on the GPS system, I think you're out of touch. Can you imagine the power a nation would have, if they could shut it down. Particularly, if they could still use it. Or hold it ransom? Every significant nation on the earth, currently has significant cyber task forces, the US included. The criminals are now in it for the money, not just messing things up. Some of the criminals are in bed with sovereign nations, as revenue sources.

Past performance of machinery is no guarantee of future results. There are some dramatic examples of this.


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

Jeanneau 54DS

In the harsh marine environment, something is always in need of repair. Margaritas fix everything.
Minnewaska is offline  
The Following User Says Thank You to Minnewaska For This Useful Post:
CrispyCringle (11-12-2018)
post #8 of 15 Old 11-12-2018 Thread Starter
Senior Member
 
aa3jy's Avatar
 
Join Date: Jul 2006
Posts: 2,433
Thanks: 3
Thanked 109 Times in 101 Posts
Rep Power: 13
 
Re: Possible GPS replacement..

...and the Russians have been proving their capability of blocking/interfering with the encrypted version GPS signals in the latest NATO and Baltic exercises this past month..

Last edited by aa3jy; 11-12-2018 at 11:20 AM.
aa3jy is offline  
post #9 of 15 Old 11-12-2018
Senior Member
 
Join Date: Jul 2007
Location: Philadelphia
Posts: 1,240
Thanks: 0
Thanked 22 Times in 21 Posts
Rep Power: 12
 
Re: Possible GPS replacement..

Russia blocks GPS in Northern Finland
https://www.bbc.com/news/world-europe-46178940
Ulladh is offline  
post #10 of 15 Old 11-12-2018
bell ringer
 
Join Date: Aug 2008
Location: on way toward New orleans
Posts: 4,040
Thanks: 10
Thanked 108 Times in 101 Posts
Rep Power: 11
 
Re: Possible GPS replacement..

when GPS is getting blocked I would be much more considered than just that I don't know my position to within 8'

Don't blow air up my rear, be useful and blow it at the sails!
To view links or images in signatures your post count must be 10 or greater. You currently have 0 posts.
Don0190 is online now  
Reply

Quick Reply
Message:
Options

By choosing to post the reply above you agree to the rules you agreed to when joining Sailnet.
Click Here to view those rules.

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











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
iPad, built in GPS or bluetooth GPS Frogwatch Gear & Maintenance 31 03-18-2014 09:13 AM
OMC Saildrive possible replacement Cincy020 Gear & Maintenance 11 07-26-2013 12:15 PM
Possible replacement of head.... Dgreengl Gear & Maintenance 5 07-04-2013 06:47 AM
Possible replacement of head.... Dgreengl Gear & Maintenance 0 07-02-2013 10:46 AM
1 GPS/VHF antenna for several pieces of electronics possible? bobbylockes General Discussion (sailing related) 6 07-23-2011 07:04 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