The Hull Truth - Boating and Fishing Forum

Go Back   The Hull Truth - Boating and Fishing Forum > BOATING FORUMS > Marine Electronics Forum
Search

Notices

Random Quote: she said "tie me up and you can do what you want'', so I tied her up, and went fishing.
Reply
 
Thread Tools Search this Thread
Old 09-24-2010, 09:27 PM
  #1    
Senior Member
 
Join Date: Mar 2006
Location: New Zealand
Posts: 147
Default North up, Head up, or Course up

I have a Raymarine E120 chart plotter, and normally have it set to Head up and relative motion. A friend of mine says he runs his Simrad plotter in North up, as it redraws the screen more quickly in this mode. I like Head up because what I see when I look out the window, is the same view I am seeing on the plotter. Does North up redraw more quickly on a plotter, and if so why? Is there a good reason to use North up rather than Head up or course up ? I seem to recall that the Furuno Navnet VX2 and the Simrad units I had on previous boats always defaulted back to North up every time they were restarted.
Rockyw is offline   Reply With Quote
Old 09-24-2010, 09:35 PM
  #2    
Senior Member
 
Join Date: Oct 2009
Location: Ft Lauderdale Fl
Posts: 5,805
Default

I prefer head up myself for the same reason. I want to be looking at where I am going and when I look down I want what is in front of me to be at the top of the screen in front of me also
bumster is offline   Reply With Quote
 
Old 09-25-2010, 12:54 AM
  #3    
Senior MemberCaptains Club Member
 
Join Date: Nov 2004
Location: Brisbane, Australia
Posts: 1,002
Default

With North up, the chart orientation stays the same so there is no redraw unless you change the range or get close to the edge of the displayed chart & it displays the "next" area.
Head up will constantly change as minor variations in the boat heading will be reflected on the chart.
So, North up will be stable & not really change at all.
I run North up because I am comfortable with this & use my compass in conjunction with a course or track line because the compass is quicker to swing than the plotter compass. I can visualise course changes easily in all modes but I am a geezer & have been navigating on land & sea for 40 plus years. My brain allows this but not everyone is wired in this manner. It is not criticism but simply stating a fact. Just as I am not a computer person but others are.
Regardless of which method you use, it is good practice to know what is 10 miles or so in front of you if you do not have a paper chart in unfamiliar waters. My Ray C80 has most likely been overtaken in redraw speed by later models or different brands so this info may not be useful.
But all plotters have the disclaimer about "being an aid to navigation" on the opening screen. A prudent skipper would have a compass & a large scale chart or a back up GPS.
__________________
Regards,
Pete in Brisbane

peterbo3 is offline   Reply With Quote
Old 09-25-2010, 01:41 AM
  #4    
Junior Member
 
Join Date: May 2010
Posts: 19
Default

Yep same as what Pete said.

In North Up Mode the chart remains unchanged regardless of what your boat is doing and your brain can do the mental gymnastics to relate the map to what you see out your window.

In the other modes, the chart will need to redraw whenever your vessel changes direction but you do not need to do any of the mental gymnastics.

So basically it comes down to personal preference.

For myself personally, I try to pick a mode that means there is less for me to think about as the more time I spend with my head looking down at the chartplotter the greater the chances of sea sickness.

When fishing and trying to anchor onto a waypoint I use my chartplotter in conjunction with my boat compass . As a result I use North-Up on the chartplotter so that my when my mark is to the right of me on the chart I know to turn east with my boat compass. When I have tried Head-Up mode in this scenario I find myself just spinning around and around in circles as the chart redraws and I do not have a constant frame of reference.

When cruising the Head-Up mode would probably be quite nice so what you see out the window lines up with what you see in at the top of the chartplotter, but I cant be bothered changing modes so I tend to stay in North-Up.

At the end of the day, my advice would be to pick a mode that you are comfortable with and understand because in an emergency you don't want to be second guessing yourself.
bluewater1168 is offline   Reply With Quote
Old 09-25-2010, 03:01 AM
  #5    
Senior Member
 
Join Date: Jun 2007
Posts: 4,983
Default

Run in head up or track up and once I'm there I fish in North up.
zigzag is offline   Reply With Quote
Old 09-25-2010, 03:46 AM
  #6    
Senior MemberCaptains Club Member
 
Join Date: Dec 2007
Location: Jupiter, FL
Posts: 8,400
Default

2 screens. Run navigation in north up. Radar in course up. I like consistency no spinning screen
__________________
31 Bahama 275 Verado
bradv is offline   Reply With Quote
Old 09-25-2010, 06:35 AM
  #7    
Admirals Club
 
Join Date: Jul 2009
Location: NY, NY
Posts: 496
Default

I always run north up - guess it is a habit left over from navigating with a compass.
__________________
Tides 27
15' Whaler

Previous: 13' Whaler, 27' Whaler, 31' Wilbur Express, 31' JC Casco Bay, J36, J44, J47

Free people, free markets, free Willy
ghargraves is offline   Reply With Quote
Old 09-25-2010, 06:56 AM
  #8    
Admirals Club
 
Join Date: Mar 2010
Location: Anderson, SC
Posts: 5,695
Default

Quote:
Originally Posted by ZIGZAG View Post
Run in head up or track up and once I'm there I fish in North up.
I do the exact same thing. When I'm going out or coming back in I use the head up mode because you normally have a course line set to follow so you just keep it straight up. Also, when you're in a narrow waterway it's easier for me. I can glance at it and know whether to steer to the left or the right. It's not nearly as easy in N up.

Now on the other hand, when I'm fishing I like N up because I can relate the GPS and my paper charts and the compass. I use to fish head up because that's how it was set on the way out. I had the hardest time with direction.

Now, when I look at the map the gps screen looks the same. I don't have to turn the map upside down to figure out which way I'm going.

You may not like N up while fishing but give it a try.
__________________
2004 Cape Horn 31T!
2012 Yamaha F300's

1992 Chapparal 200SS
350V8 Magnum!

2001 Cape Horn 24OS
twin optimax 150's Sold

bluewaterseeker is offline   Reply With Quote
Old 09-25-2010, 07:03 AM
  #9    
Senior Member
 
Join Date: Apr 2006
Location: Snohomish, WA
Posts: 399
Default

Same as ZigZag
Tower Todd is offline   Reply With Quote
Old 09-25-2010, 07:10 AM
  #10    
Senior Member
 
Join Date: Aug 2006
Location: San Diego
Posts: 2,146
Default

Don't be afraid to change the orientation during the day depending upon what you're doing. I find that if I'm running split screen chart/radar, I want them synced-up, course up, so I'm looking at the same thing ahead of me on each. If navigating to a waypoint (or my cursor position) with the plotter, I don't want the screen re-drawing and jumping around, like peterbo3 pointed out, so I'll switch the orientation to N-up. Steve has pointed this out previously, and I like to give credit where credit is due.
Pez Vela is offline   Reply With Quote
Old 09-25-2010, 07:12 AM
  #11    
CMP
Senior MemberCaptains Club MemberPLEDGER
 
Join Date: Feb 2003
Location: None of yer friggin' bidness, but since you asked nicely, S. NH, E. Orleans,Islamorada, Nashville
Posts: 10,059
Default

Always north up. Old school...

CMP
__________________
CMP is offline   Reply With Quote
Old 09-25-2010, 08:54 AM
  #12    
Admirals Club
 
Join Date: Aug 2009
Location: Richmond & Kilmarnock, VA
Posts: 4,197
Default

One plotter in heading up zoomed in for details and the other in north up, zoomed out to give the big picture and progress for the trip. Radar overlays on both.
__________________

Tiara 3700 Open/Cummins 450Cs
Buoy Scout is offline   Reply With Quote
Old 09-25-2010, 09:04 AM
  #13    
Senior Member
 
Join Date: Jun 2008
Location:
Posts: 1,768
Default

Heading up when I'm running, North up to anchor up over a spot for bottom fishing.
fishinmaniac is offline   Reply With Quote
Old 09-25-2010, 10:30 AM
  #14    
Senior MemberCaptains Club Member
 
Join Date: Nov 2004
Location: Apollo Beach, FL
Posts: 107
Default

I'm with Pete, Bradv, and others. North up on my chart plotter and heading up on my radar. That's what works for me. There's no right or wrong answer. Whatever you are comfortable with...

Team High Voltage
Bluewater 2850
__________________
Team High Voltage
Bluewater 2850
HighVoltage is offline   Reply With Quote
Old 09-25-2010, 06:25 PM
  #15    
TSA
BannedCaptains Club Member
 
Join Date: Nov 2007
Location: St Pete/Islamorada
Posts: 6,122
Default

north up. i want it to be just like looking at a map/chart.

..............course headings seem to update faster.
TSA is offline   Reply With Quote
Old 09-25-2010, 06:48 PM
  #16    
Senior MemberCaptains Club MemberPLEDGER
 
Join Date: May 2003
Location: New Braunfels, Tx
Posts: 8,757
Default

I like head up..
__________________
- Chris

Guess What?? I got a Fever.. And the only prescription is.. MORE COWBELL!



-2011 Blue Wave 2400 Pure Bay / Yamaha F300 4.2 with Command Link Plus
-2003 Sea Fox 195 Bayfisher - Mercury 125 Saltwater Classic (Sold)
-1994 Wellcraft V-20 Step Lift (Sold)
ReelWork is offline   Reply With Quote
Old 09-26-2010, 03:48 AM
  #17    
Senior Member
 
Join Date: Jan 2010
Location: Miccosukee (suburb of Tallahassee)
Posts: 553
Default

Some have a 'course pointer' selection and some don't. That could be a factor. I've never used a GPS for marine but have thousands of hours useing one in an airplane. It was better than GREAT! In a turn everything in front of the airplane stayed in front of the airplane. You flew a straight line regardless of wind drift.
chemoniepilot is offline   Reply With Quote
Old 09-26-2010, 05:46 AM
  #18    
Senior MemberCaptains Club Member
 
Join Date: Mar 2007
Location: Annapolis
Posts: 1,924
Default

The Navy taught navigators to always think in North up because it was easier to track the other ships in a formation, and communicate course changes to all the other ships from that perspective. Besides, since it took ten miles of ocean to turn, things didn't happen all that fast. When airborne radar showed up in Navy cockpits it became immediately obvious that things up there changed too fast, and it added an unnecessary load to the pilot's situational awareness to sort out who was where on the screen as compared to where to point his guns. Course up or heading up was it. What you see inside the cockpit is what you see outside.

If you are part of a convoy, zig-zagging to confuse hostile submarines, you really should stick to north up, go slow, and not make a lot of turns.

However, most of our vessels can out turn a fighter. We don't want to lose a lot of time mentally calculating positions, adding east or subtracting west or any of those unnecessary mental gymnastics, any more than we want to prove we can recite poetry while riding a unicycle blind-folded. The gadget makers have given us radar and weather overlays and charts that turn with us (just like that compass thingie) so that we can see at a glance where things are, and see them in the same place when we are looking outside the boat, something we should all do more often!

It fairly boggles the mind that anyone would volunteer for a mental handicap, setting different screens on different orientations. Isn't drinking a case or two enough of a challenge?

I will admit that going to north up while stationary is a good idea if you don't have a separate heading sensor. But if you are using a zone alarm on radar, it is not.

Some old salt told you to use North up, because some old salt told him! That could have been before color TV. He probably thought indoor plumbing would kill everyone in the house with poisonous fumes.
__________________
If it ain't broke, I haven't played with it.

Last edited by sandyda; 09-26-2010 at 05:57 AM.
sandyda is offline   Reply With Quote
Old 09-26-2010, 06:12 AM
  #19    
Senior MemberCaptains Club Member
 
Join Date: Feb 2005
Location:
Posts: 12,582
Default

Quote:
Originally Posted by sandyda View Post
Some old salt told you to use North up, because some old salt told him! That could have been before color TV. He probably thought indoor plumbing would kill everyone in the house with poisonous fumes.
A whole lot of words were written and I am still not clear what you are saying. It appears to be, NOT to use north up. Is that it?

I guess that I am a contrarian. I use north up. All maps that I have ever seen published north up (and yes they can be manually rotated however one wishes). They could just as easily be printed east up, south up, or west up.

If my map is north up but my course is south then I know that I am going down the map. Down as in heading south.

Bottom line is, there is no right or wrong. One way is not necessarily better than the other. It is all about personal preferance and what works for the operator.
jethro1 is offline   Reply With Quote
Old 09-26-2010, 09:04 AM
  #20    
Admirals Club Captains Club Member
 
Join Date: Oct 2002
Location: anderson, sc
Posts: 15,448
Default

Quote:
Originally Posted by bumster View Post
I prefer head up myself for the same reason. I want to be looking at where I am going and when I look down I want what is in front of me to be at the top of the screen in front of me also
That is the way I set my units, just seems more natural to me
__________________
210 CC Sea Pro
Yamaha 200 4 Stroke
Dodge Ram 1500 4x4 HEMI

2008 Corvette 3LT

tprice is offline   Reply With Quote
 
 
Reply

Thread Tools Search this Thread
Search this Thread:

Advanced Search

Posting Rules
You may not post new threads
You may not 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 Off
Trackbacks are Off
Pingbacks are Off
Refbacks are Off

 



©2009 TheHullTruth.com

Powered by vBulletin® Version 3.7.6
Copyright ©2000 - 2015, Jelsoft Enterprises Ltd.
Search Engine Friendly URLs by vBSEO 3.2.0