Compass Preference

boristhebold · 12 November 2013, 17:37

As my pride and joy is currently awaiting repairs I will be doing some upgrades to the kit on the dash/console sometime soon, updating and re arranging. One thing I cant seem to make my mind up about is a compass, I have a massive one currently which im probably going to change to a smaller one but where to position it, that is the question.

Currently its in centre line of boat on the dash, what are peoples preferences and why ? Ive seen some in line with steering wheel, some off centre to the right or to the left and some inline with middle of boat, so where is yours and whats your thinking around that position. Are there pros and cons to consider. Yes aware of deviation issue.

Any thoughts or comments welcome.

John Kennett · 12 November 2013, 17:45

Plastimo Offshore 90 or 135 in line with the steering wheel so it's easy to see without taking your eye off where you are going.

willk · 12 November 2013, 17:53

Quote:

Originally Posted by John Kennett

Plastimo Offshore 90 or 135 in line with the steering wheel so it's easy to see without taking your eye off where you are going.

What that man said.

Maximus · 12 November 2013, 18:06

Makes 3

Plastimo Offshore 'I05' if you have the room.Mine is placed in line of sight in centre of Consul..and is not obscured by anything, Wheel ect... also farthest point from electrics and Metal....and with my Consul,layout,height ect, is perfect for me.
You'll soon suss out what is best for your set-up.

jambo · 12 November 2013, 18:08

Makes four that's what I have and setup the same.

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Nos4r2 · 12 November 2013, 21:46

Removable Ritchie RA93, in line with helm seat.

ncp · 12 November 2013, 22:55

In-line...Ritchie F-82 in black (F-82*-*Voyager*(Flush*Mount))

martini · 12 November 2013, 23:20

Needs to be right in front of you otherwise your reading will be slightly off

Nos4r2 · 13 November 2013, 02:21

Quote:

Originally Posted by ncp

In-line...Ritchie F-82 in black (F-82*-*Voyager*(Flush*Mount))

I'd have gone for one of those but the hoses for my steering are in the way there.

dnv · 13 November 2013, 08:32

in line of sight and as large as you can fit. LARGE digits. A mark every 5 degrees is good enough. Good damping. Red light for night trips. Buy one with integrated correctors, makes compensation easier. And do compensate or create a deviation table. Your GPS will fail when Murphy so decides.

Portholme · 13 November 2013, 18:19

I've got a plastimo 105 but slightly offset, which doesn't make too much of a difference to be honest. Staggeringly accurate compared to chartplotter compass all the way round the rose.

j.i.wilson · 14 November 2013, 22:35

Portholme
You say the compass is "staggeringly accurate' compared to chart plotter.

How do you know, what are you comparing it to?

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willk · 14 November 2013, 23:45

He'll mean that it is accurate at every point (knowing this by comparing it to the GPS) - it's in how you read it

j.i.wilson · 15 November 2013, 07:47

Oh, yes, I see what you mean.

In which case he must have his chart plotter set to magnetic north.

Still wonder what 'staggeringly accurate" means.

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Portholme · 15 November 2013, 07:59

Probably not a great phrase to have used. It's within two or three degrees all the way round the compass rose, usually there's quite a variation as metal work gets in between you and north but this one seems not to suffer.

Rokraider · 15 November 2013, 09:25

I am looking at fitting a compass on the Pac, but am wondering whether it will work with a rear console and a bloody great iron engine in front of it, albeit approx 4' below the compass?

willk · 15 November 2013, 09:39

Quote:

Originally Posted by j.i.wilson

In which case he must have his chart plotter set to magnetic north.

Or be able to add and subtract. He didn't say that it had the same reading as the plotter - just that accuracy was good compared to it.

j.i.wilson · 15 November 2013, 21:04

Now this is where my statiticians background is going to show, along with my pedantism.....

Accuracy is the nearness to the right answer, hence the application of the correction is required...

Precision is the spread of the measurements regardless of the right answer, hence the correction would not be required.

I know, i know, but I used to make a living knowing this stuff.

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willk · 15 November 2013, 21:13

Quote:

Originally Posted by j.i.wilson

Now this is where my statiticians background is going to show, along with my pedantism.....

Nah, that was showing waaaaaay back - I just wanted you to 'fess up!