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Magnetic Pole shifting unpredicably

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  #26  
Old 30th January 2019, 10:48
Ken Wood's Avatar
Ken Wood Ken Wood is online now  
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  #27  
Old 31st January 2019, 06:44
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Down under? All we can be sure of is that the positive end will be negative, and vise-versa, and I have no idea which is which right now.
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  #28  
Old 6th December 2019, 18:06
Davie M Davie M is offline  
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An abridged piece of an article in the Royal Yachting Association magazine this month on compasses and true north.
During The first two weeks in September compasses at Greenwich pointed to true north for the first time in about 360yrs, before turning eastwards.
The line of zero declination called the agonic is moving westward at around 12miles per year. It will continue to pass across the U.K. over the next 15-20years.
By 2040 all compasses will probably point eastwards of true north.
It is impossible to predict how the magnetic field will change over time so the compass may point east of true north for another 360yrs
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  #29  
Old 6th December 2019, 19:46
duncs duncs is offline  
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Will all this 'magnetic shift' make Polaris redundant?
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  #30  
Old 7th December 2019, 07:22
barry john macauley barry john macauley is offline  
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Hope it doesn't make the Southern Cross.
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  #31  
Old 7th December 2019, 11:08
Davie M Davie M is offline  
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Originally Posted by duncs View Post
Will all this 'magnetic shift' make Polaris redundant?
Which one?

Last edited by Davie M; 7th December 2019 at 12:36..
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  #32  
Old 9th December 2019, 02:18
duncs duncs is offline  
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Which one?
The one in the sky. The other 'Polaris', is long gone. He was quite a character in Davie Mac's navy!
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  #33  
Old 9th December 2019, 13:23
Davie M Davie M is offline  
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The one in the sky. The other 'Polaris', is long gone. He was quite a character in Davie Mac's navy!
Being flippant, are the submarines in the Clyde not still called that or am I out of date?
Davie
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  #34  
Old 9th December 2019, 13:37
duncs duncs is offline  
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David MacBrayne, now CalMac. 'Polaris' was a skipper, quite a character. I thought that was what you meant when you asked which polaris.
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  #35  
Old 9th December 2019, 15:14
Davie M Davie M is offline  
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Quote:
Originally Posted by duncs View Post
David MacBrayne, now CalMac. 'Polaris' was a skipper, quite a character. I thought that was what you meant when you asked which polaris.
Thanks duncs I did think we might be on different tacks.
Davie
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  #36  
Old 9th December 2019, 16:33
duncs duncs is offline  
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When 'Polaris' went into a rather basic pub on the Paisley road, accompanied with a female, he was told, "sorry Captain, but you can't bring a female in here, there's no ladies toilet". "I brought her in here for a drink, not a piss", was his response.
I don't think anyone would dare argue with him.
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  #37  
Old 9th December 2019, 17:43
Pilot mac Pilot mac is offline  
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Originally Posted by Varley View Post
Why would gyro's fall over?
My first trip as Second Mate was with a Sperry Mark XIV I think, that was always trying to fall over!

She was an old ship and blackouts were frequent, my first instinct was always get to the gyro and lock it upright.

Happy days?!
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  #38  
Old 9th December 2019, 20:13
Davie M Davie M is offline  
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Quote:
Originally Posted by duncs View Post
When 'Polaris' went into a rather basic pub on the Paisley road, accompanied with a female, he was told, "sorry Captain, but you can't bring a female in here, there's no ladies toilet". "I brought her in here for a drink, not a piss", was his response.
I don't think anyone would dare argue with him.
Yes, it doesn’t leave room for a discussion does it.
Davie
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  #39  
Old 9th December 2019, 20:17
duncs duncs is offline  
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The gyro on the Dwarka, never fell over, did it Dave?

Best regards, Duncan
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  #40  
Old 9th December 2019, 21:29
slick slick is online now  
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All,
"All things wise and wonderful.
all creatures great and small,
all things wise and wonderful,
Polaris kills them all........"
As I dimly recall from the 70's.....

yours aye,
slick
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  #41  
Old 9th December 2019, 23:53
Engine Serang Engine Serang is offline  
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Quote:
Originally Posted by duncs View Post
When 'Polaris' went into a rather basic pub on the Paisley road, accompanied with a female, he was told, "sorry Captain, but you can't bring a female in here, there's no ladies toilet". "I brought her in here for a drink, not a piss", was his response.
I don't think anyone would dare argue with him.
Lounge Bar or Public Bar?
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  #42  
Old 10th December 2019, 00:03
Pilot mac Pilot mac is offline  
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The gyro on the Dwarka, never fell over, did it Dave?

Best regards, Duncan
That was from a different age Duncan, like some kind of time warp. No gyro and no auto pilot. Can remember the old man telling me to watch the compass as it did a pirouette coming down river somewhere between Basra and Khorramshar, apparently we were moving over a wreck and it happened every trip.
Hope you are well, kind regards, Dave
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  #43  
Old 10th December 2019, 17:08
IDH IDH is offline  
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New magnetic model just released

https://www.hydro-international.com/...ased-next-week
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  #44  
Old 11th December 2019, 00:55
duncs duncs is offline  
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Quote:
Originally Posted by Pilot mac View Post
That was from a different age Duncan, like some kind of time warp. No gyro and no auto pilot. Can remember the old man telling me to watch the compass as it did a pirouette coming down river somewhere between Basra and Khorramshar, apparently we were moving over a wreck and it happened every trip.
Hope you are well, kind regards, Dave
I'm still surviving, Dave. I always think of the Shat and Basra as a previous existence.
I hope you are also keeping well.
Duncan
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  #45  
Old 11th December 2019, 01:07
duncs duncs is offline  
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Originally Posted by Engine Serang View Post
Lounge Bar or Public Bar?
I think the pub was either the 'Iona' or the 'Moy', but it was probably a lounge bar. Patrons could lounge at the bar, but no sitting provided. A gents toilet, was provided.
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  #46  
Old 12th December 2019, 16:59
Pilot mac Pilot mac is offline  
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I'm still surviving, Dave. I always think of the Shat and Basra as a previous existence.
I hope you are also keeping well.
Duncan
Do you remember going ashore in Basra? First time I ate 'elephants leg'
(aka kebab).

The whole experience makes me feel a bit like a 'Time Lord', well it was 46 years ago!

Dave
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  #47  
Old 12th December 2019, 21:04
Davie M Davie M is offline  
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Basra, went swimming in the airport pool(1959). Remember the beer was something like 7/6d a bottle.
Often wondered if it still existed after all the trouble.
Davie
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  #48  
Old 12th December 2019, 21:43
duncs duncs is offline  
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Originally Posted by Pilot mac View Post
Do you remember going ashore in Basra? First time I ate 'elephants leg'
(aka kebab).

The whole experience makes me feel a bit like a 'Time Lord', well it was 46 years ago!

Dave
We're a bit off the thread here, but, what the hell. Yes, Basra was OK then, nice cinema, with latest films. Not to mention the BBQ/p1ss up on the bridge wing, when no pax aboard.
Don't know about a swimming pool at the airport, never got that far.

However, it was good to get back home to Bombay.

Duncan
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