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Taking a Silva 73R compass to NZ

Printed From: Yachts and Yachting Online
Category: General
Forum Name: Banter
Forum Discription: For all those non-sailing related discussions
URL: http://www.yachtsandyachting.com/forum/forum_posts.asp?TID=5316
Printed Date: 14 Aug 25 at 1:53pm
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Topic: Taking a Silva 73R compass to NZ
Posted By: Dago
Subject: Taking a Silva 73R compass to NZ
Date Posted: 17 Mar 09 at 9:08pm

About to depart to New Zealand, and have been asked by son to take out a Silva 73R compass for his Javelin.

Question: Is it ok to transport it in a suitcase that will go in the HOLD rather than as Cabin luggage?

Is it permisable at all to transport a compass in an aircraft? 

Heathrow guide stipulates "No instruments with magnets"



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Dago
RS400



Replies:
Posted By: HannahJ
Date Posted: 17 Mar 09 at 10:06pm
Compasses don't have magnets, they're affected by them, should be ok. I'm sure I've taken compasses on planes before.

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MIRROR 64799 "Dolphin"
The pessimist complains about the wind; the optimist hopes it will change; the realist adjusts the sail


Posted By: alstorer
Date Posted: 18 Mar 09 at 7:20am
compasses ARE magnets, albeit quite weak ones- if you want proof, place two compasses close to one another- they will align.

Dago: I would recommend seeking clarifcation from the airline.

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-_
Al


Posted By: Dago
Date Posted: 18 Mar 09 at 8:28am

Thanks for info. Trying to check with Singapore Airlines, no one availabe in UK,  have been asked to contact their HQ in Singapore, which seems very odd.

I always thought that compasses had to have some form of magnetic device inside them as well.



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Dago
RS400


Posted By: Dago
Date Posted: 18 Mar 09 at 8:57am

Finally got a reply from the Airlines. Yes they can be taken as Hold Luggage not Cabin luggage, just must not weigh more than 20 Kgs!! 

Thanks for your replies HannahJ & alstorer. 



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Dago
RS400


Posted By: Adam@LDC
Date Posted: 18 Mar 09 at 11:23am
The compass won't work in New Zealand, you will need a southern hemisphere compass.

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Retail Manager, LDC Racing Sailboats


Posted By: Dago
Date Posted: 18 Mar 09 at 11:33am

Hi Adam,

Sorry to be a pain, but just to confirm your not making a funny, as I just packed it.

Will it not be possible to read it anyway?

If not, do you have an outlet in Auckland I can get one from on Saturday!

Dago 



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Dago
RS400


Posted By: Graham T
Date Posted: 18 Mar 09 at 12:49pm
Seriously most compasses are weighted to suit which side
of the earth you are on..... they tend to drag
otherwise. I would contact Silva to check your
compass....

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Osprey 55 "Tebutinnang"
Osprey 1245 "Two Bob Bit"
Miracle 1358 "Thumper"


Posted By: HannahJ
Date Posted: 18 Mar 09 at 8:12pm
Well I never knew... I know you can reverse the direction they point in by drawing a magnet along the needle - did this once by accident. Don't know if this would make it work in the Southern hemisphere?

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MIRROR 64799 "Dolphin"
The pessimist complains about the wind; the optimist hopes it will change; the realist adjusts the sail


Posted By: Graham T
Date Posted: 18 Mar 09 at 8:26pm
Reversing the polarity and reading it back to front I
guess could work but I'm no expert... best to contact
the manufacturer - it may be fine as it is. Basically in
the northern hemisphere the compass needle is pulled
down as well as towards the pole so the southern end is
counterweighted to stop it dragging on the compass body.
The opposite is true in the southern hemisphere.

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Osprey 55 "Tebutinnang"
Osprey 1245 "Two Bob Bit"
Miracle 1358 "Thumper"


Posted By: Guest
Date Posted: 20 Mar 09 at 1:43pm

I used a northern hemishpere compass at the Fireball worlds in Durban ... it's not idea ...

It is true that there are different versions for north & south hemispheres ...



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Posted By: JimC
Date Posted: 20 Mar 09 at 4:40pm
Are there equatorial versions as well?


Posted By: Rupert
Date Posted: 20 Mar 09 at 4:47pm
OK, so how do the round the world boats cope?

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Firefly 2324, Puffin 229, Minisail 3446 Mirror 70686


Posted By: Guest
Date Posted: 20 Mar 09 at 5:26pm

Originally posted by Rupert

OK, so how do the round the world boats cope?

I expect they have on eof each or have the ability to recalibrate their electronic versions ... but it would be interesting to know ...



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