Since the north magnetic pole is not resting upon the surface of the Earth
compasses made for Northern Hemisphere use are usually weighted on the
card on the southern side to keep the card more level as the north side of
the card seeks out the north pole buried well inside the Earth.

Are the compasses you Australian and New Zealand ******s use weighted
any differently? What if you were going to sail to Canada or something.
Would your southern compass work in the Northern hemisphere? Also
does you compass really seek the North magnetic pole or is it made
backwards to seek the south magnetic pole.

Enquiring minds want to know . . .

S.Simon

I believe that the better compasses (all real compasses?) are built for either
the Northern or Southern Hemisphere, or have an adjustment.

http://www.ritchienavigation.com/ser...albalance.html


"Simple Simon" wrote in message
...
Since the north magnetic pole is not resting upon the surface of the Earth
compasses made for Northern Hemisphere use are usually weighted on the
card on the southern side to keep the card more level as the north side of
the card seeks out the north pole buried well inside the Earth.

Are the compasses you Australian and New Zealand ******s use weighted
any differently? What if you were going to sail to Canada or something.
Would your southern compass work in the Northern hemisphere? Also
does you compass really seek the North magnetic pole or is it made
backwards to seek the south magnetic pole.

Enquiring minds want to know . . .

S.Simon

So, when I decide to circumnavigate I'll need several compasses?

I have to wonder at the fact of all the circumnavigation stories
I've read that not a single, solitary author even made mention
of compass dip?

S.Simon


"Jeff Morris" wrote in message ...
I believe that the better compasses (all real compasses?) are built for either
the Northern or Southern Hemisphere, or have an adjustment.

http://www.ritchienavigation.com/ser...albalance.html


"Simple Simon" wrote in message
...
Since the north magnetic pole is not resting upon the surface of the Earth
compasses made for Northern Hemisphere use are usually weighted on the
card on the southern side to keep the card more level as the north side of
the card seeks out the north pole buried well inside the Earth.

Are the compasses you Australian and New Zealand ******s use weighted
any differently? What if you were going to sail to Canada or something.
Would your southern compass work in the Northern hemisphere? Also
does you compass really seek the North magnetic pole or is it made
backwards to seek the south magnetic pole.

Enquiring minds want to know . . .

S.Simon

Donals Dilemma wrote in message news
Jesus Christ Cappy!?



Why clutter up the newsgroup with stupid expletives
if you don't know the answer?

S.Simon

More inane obfuscation from the wizard of obiter dictum.

Other than oblique obsequiousness oz oinks only obstreperousness.

S.Simon




Donals Dilemma wrote in message
I know the answer, I'm stunned that a licenced captain like yourself
with thousands of ocean miles has absolutely no clue!

And either a boat or a plane.

"Simple Simon" wrote in message
...
So, when I decide to circumnavigate I'll need several compasses?

I have to wonder at the fact of all the circumnavigation stories
I've read that not a single, solitary author even made mention
of compass dip?

S.Simon


"Jeff Morris" wrote in message
...
I believe that the better compasses (all real compasses?) are built for
either
the Northern or Southern Hemisphere, or have an adjustment.

http://www.ritchienavigation.com/ser...albalance.html


"Simple Simon" wrote in message
...
Since the north magnetic pole is not resting upon the surface of the
Earth
compasses made for Northern Hemisphere use are usually weighted on the
card on the southern side to keep the card more level as the north
side of
the card seeks out the north pole buried well inside the Earth.

Are the compasses you Australian and New Zealand ******s use weighted
any differently? What if you were going to sail to Canada or
something.
Would your southern compass work in the Northern hemisphere? Also
does you compass really seek the North magnetic pole or is it made
backwards to seek the south magnetic pole.

Enquiring minds want to know . . .

S.Simon

You are correct. The dip would throw the card off and might be a
problem. In fact some tasco binocs with built in compass sold here did
not work for the reason! No compass seeks the pole(s). They just align
themselves with local field. If you look at a large scale chart with
variation the lines can often wander a great deal (let alone the local
anomalies).

Cheers MC

Simple Simon wrote:

Since the north magnetic pole is not resting upon the surface of the Earth
compasses made for Northern Hemisphere use are usually weighted on the
card on the southern side to keep the card more level as the north side of
the card seeks out the north pole buried well inside the Earth.

Are the compasses you Australian and New Zealand ******s use weighted
any differently? What if you were going to sail to Canada or something.
Would your southern compass work in the Northern hemisphere? Also
does you compass really seek the North magnetic pole or is it made
backwards to seek the south magnetic pole.

Enquiring minds want to know . . .

S.Simon

But the greater question is this. A northern hemisphere compass card
has a magnet with the south pole facing the North cardinal point on
the card. This magnet also has a north pole that aligns itself opposite
of the Earth's poles.

Does a southern hemisphere compass, in order to minimize card dip,
have the magnet placed the opposite direction on the south side of
the card?

S.Simon


"The_navigator©" wrote in message ...
You are correct. The dip would throw the card off and might be a
problem. In fact some tasco binocs with built in compass sold here did
not work for the reason! No compass seeks the pole(s). They just align
themselves with local field. If you look at a large scale chart with
variation the lines can often wander a great deal (let alone the local
anomalies).

Cheers MC

Simple Simon wrote:

Since the north magnetic pole is not resting upon the surface of the Earth
compasses made for Northern Hemisphere use are usually weighted on the
card on the southern side to keep the card more level as the north side of
the card seeks out the north pole buried well inside the Earth.

Are the compasses you Australian and New Zealand ******s use weighted
any differently? What if you were going to sail to Canada or something.
Would your southern compass work in the Northern hemisphere? Also
does you compass really seek the North magnetic pole or is it made
backwards to seek the south magnetic pole.

Enquiring minds want to know . . .

S.Simon

Sorry Oz. I was just trying to respond to what I thought was a genuine
request for information. I just can't stop myself trying to help those
seeking information...

Cheers MC

Donals Dilemma wrote:

On Thu, 27 Nov 2003 12:15:30 +1300, The_navigator©
wrote:


You are correct. The dip would throw the card off and might be a
problem. In fact some tasco binocs with built in compass sold here did
not work for the reason! No compass seeks the pole(s). They just align
themselves with local field. If you look at a large scale chart with
variation the lines can often wander a great deal (let alone the local
anomalies).

Cheers MC


Aaaaargh!
Ya always gotta show how smart you are!
I was hoping that Cappy might bail out of the internet porn for a few
minutes and actually learn something about his "trade".


Oz1...of the 3 twins.

I welcome you to crackerbox palace,We've been expecting you.

I'm sorry I don't really understand the question. Dip is generally
corrected by weights. So take a northern compass south and card tilts
and develops a dip error. The dip in the south is gernerally in the
opposite direction to that in the north if you like to think about it
that way.

Cheers MC

Simple Simon wrote:

This magnet also has a north pole that aligns itself opposite
of the Earth's poles.

Does a southern hemisphere compass, in order to minimize card dip,
have the magnet placed the opposite direction on the south side of
the card?

S.Simon


"The_navigator©" wrote in message ...

You are correct. The dip would throw the card off and might be a
problem. In fact some tasco binocs with built in compass sold here did
not work for the reason! No compass seeks the pole(s). They just align
themselves with local field. If you look at a large scale chart with
variation the lines can often wander a great deal (let alone the local
anomalies).

Cheers MC

Simple Simon wrote:


Since the north magnetic pole is not resting upon the surface of the Earth
compasses made for Northern Hemisphere use are usually weighted on the
card on the southern side to keep the card more level as the north side of
the card seeks out the north pole buried well inside the Earth.

Are the compasses you Australian and New Zealand ******s use weighted
any differently? What if you were going to sail to Canada or something.
Would your southern compass work in the Northern hemisphere? Also
does you compass really seek the North magnetic pole or is it made
backwards to seek the south magnetic pole.

Enquiring minds want to know . . .

S.Simon