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Knots vs. Miles #250358
06/30/12 11:39 PM
06/30/12 11:39 PM
Joined: Jun 2001
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Minnesota
Jeff Peterson Offline OP
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Does it make any sense to still be using Knots as a measurement?


Jeff Peterson
H-16 Sail #23721
Big Marine Lake, MN
-- Have You Seen This? --
Re: Knots vs. Miles [Re: Jeff Peterson] #250361
07/01/12 03:33 AM
07/01/12 03:33 AM
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Tony_F18 Offline
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Yes, because the rest of the world doesn't use miles.


Re: Knots vs. Miles [Re: Jeff Peterson] #250362
07/01/12 04:01 AM
07/01/12 04:01 AM
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West coast of Norway
Rolf_Nilsen Offline
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There is only one unit, and that is meters pr seconds. Kilometers pr hours is acceptable though.

The same for starboard and port.. Should be scrapped.


*tounge firmly in cheek*

Re: Knots vs. Miles [Re: Jeff Peterson] #250365
07/01/12 10:30 AM
07/01/12 10:30 AM
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Santiago, Chile
Andinista Offline
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Does it make any sense to still be using imperial units?

Re: Knots vs. Miles [Re: Andinista] #250366
07/01/12 10:50 AM
07/01/12 10:50 AM
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“an island in the Pacifi...
hobie1616 Offline
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“an island in the Pacifi...
Does it make any sense?


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Re: Knots vs. Miles [Re: Jeff Peterson] #250367
07/01/12 11:55 AM
07/01/12 11:55 AM
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pgp Offline
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IF I had to pick a system to change to, it would be meters/second.


Pete Pollard
Blade 702

'When you have a lot of things to do, it's best to get your nap out of the way first.

Re: Knots vs. Miles [Re: Jeff Peterson] #250376
07/01/12 02:16 PM
07/01/12 02:16 PM
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Northfield Mn
Karl_Brogger Offline
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I hope like hell the US never goes to si. Decimals are a pain in the butt if you make a living with a tape measure in your hand.

Everything else I could care less, there's no difference in any if it, just different sticks.


I'm boatless.
Re: Knots vs. Miles [Re: Karl_Brogger] #250385
07/01/12 04:43 PM
07/01/12 04:43 PM
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West coast of Norway
Rolf_Nilsen Offline
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Originally Posted by Karl_Brogger
I hope like hell the US never goes to si. Decimals are a pain in the butt if you make a living with a tape measure in your hand.


Ugh, I beg to differ! Decimals is currently the only way to measure with ease unless you grew up with imperial measurements as a tradition. 15/16ts of an inch vs 7/8s.. That is unless you know your customers are bound to get it wrong if they try the DIY route wink

Come now, throw the rest of the imperial rule away. You have had sine 1781 to get this straight smile

Re: Knots vs. Miles [Re: Jeff Peterson] #250387
07/01/12 05:27 PM
07/01/12 05:27 PM
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uk
TEAMVMG Offline
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a knot is a nautical mile per hour.
a nautical mile is the distance on the earths surface of 1 minute of one degree [ie 360 degrees x 60 minutes = 21,600 miles around the equator]
we are stuck with 360 degrees in a circle, so are probably stuck with the nautical mile and knot

Last edited by TEAMVMG; 07/01/12 05:27 PM.

Paul

teamvmg.weebly.com
Re: Knots vs. Miles [Re: Jeff Peterson] #250388
07/01/12 05:30 PM
07/01/12 05:30 PM
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Northfield Mn
Karl_Brogger Offline
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Ah, but I can add and divide fractions easier than four decimal places. 15/16 = .9375 anyway.


I'm boatless.
Re: Knots vs. Miles [Re: TEAMVMG] #250389
07/01/12 05:33 PM
07/01/12 05:33 PM
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West coast of Norway
Rolf_Nilsen Offline
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Which is all very logical and pre-GPS oriented. I think the world have moved on smile

Re: Knots vs. Miles [Re: Rolf_Nilsen] #250397
07/01/12 06:40 PM
07/01/12 06:40 PM
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Roanoke Island ,N.C.
Team_Cat_Fever Offline
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Originally Posted by Rolf_Nilsen
Originally Posted by Karl_Brogger
I hope like hell the US never goes to si. Decimals are a pain in the butt if you make a living with a tape measure in your hand.


Ugh, I beg to differ! Decimals is currently the only way to measure with ease unless you grew up with imperial measurements as a tradition. 15/16ts of an inch vs 7/8s.. That is unless you know your customers are bound to get it wrong if they try the DIY route wink

Come now, throw the rest of the imperial rule away. You have had sine 1781 to get this straight smile


I can fully sympathize with Karl. 1/16ths of an inch are as common as counting or saying your ABCs, to someone who uses it 8-10 hours a day. And God help me if i have to use a tape with the fractions written on it. I've started using metric for boat stuff because it's more the norm in the A class (and F-18 apparently), but I'd go poor trying to do it at work everday.


"I said, now, I said ,pay attention boy!"

The cure for anything is salt water - sweat, tears, or the sea
Isak Dinesen
If a man is to be obsessed by something.... I suppose a boat is as good as anything... perhaps a bit better than most.
E. B. White
Re: Knots vs. Miles [Re: Jeff Peterson] #250408
07/02/12 12:09 AM
07/02/12 12:09 AM
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Arizona
AzCat Offline
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I've spent over 30 years in the construction industry here in the good ol USA. Would switch to metric in a heartbeat. Wish it would have stuck in the 70s.


Auscat MKV 444 A class
NACRA I-20- 440/CATHATKA
Re: Knots vs. Miles [Re: Jeff Peterson] #250410
07/02/12 06:32 AM
07/02/12 06:32 AM
Joined: May 2002
Posts: 131
Southern Ontario
fredsmith Offline
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Southern Ontario
Correct me if I'm wrong, but isn't the USA the only country in the world still on the British Imperial system.

Fred

Re: Knots vs. Miles [Re: fredsmith] #250412
07/02/12 07:03 AM
07/02/12 07:03 AM
Joined: Sep 2002
Posts: 3,224
Roanoke Island ,N.C.
Team_Cat_Fever Offline
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Originally Posted by fredsmith
Correct me if I'm wrong, but isn't the USA the only country in the world still on the British Imperial system.

Fred


Yeah ,what's it to ya canuck? wink


"I said, now, I said ,pay attention boy!"

The cure for anything is salt water - sweat, tears, or the sea
Isak Dinesen
If a man is to be obsessed by something.... I suppose a boat is as good as anything... perhaps a bit better than most.
E. B. White
Re: Knots vs. Miles [Re: AzCat] #250413
07/02/12 07:08 AM
07/02/12 07:08 AM
Joined: Sep 2002
Posts: 3,224
Roanoke Island ,N.C.
Team_Cat_Fever Offline
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Originally Posted by azcat
I've spent over 30 years in the construction industry here in the good ol USA. Would switch to metric in a heartbeat. Wish it would have stuck in the 70s.


I'm not sure about the kind of guys you've got working in the lumber yards in Arizona , but the ones around here would short circuit and explode if they had to learn metric. Half the the time they're lucky to get the boards within 2' lengths( that's .6096 of a meter,for you imperial challenged folks)of what you order loaded on the truck.
If we were to switch over tomorrow I'd be OK with it , it would just take some serious mental recalibration.I'd probably survive.


"I said, now, I said ,pay attention boy!"

The cure for anything is salt water - sweat, tears, or the sea
Isak Dinesen
If a man is to be obsessed by something.... I suppose a boat is as good as anything... perhaps a bit better than most.
E. B. White
Re: Knots vs. Miles [Re: TEAMVMG] #250415
07/02/12 07:11 AM
07/02/12 07:11 AM
Joined: Sep 2002
Posts: 3,224
Roanoke Island ,N.C.
Team_Cat_Fever Offline
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Roanoke Island ,N.C.
Originally Posted by TEAMVMG
a knot is a nautical mile per hour.
a nautical mile is the distance on the earths surface of 1 minute of one degree [ie 360 degrees x 60 minutes = 21,600 miles around the equator]
we are stuck with 360 degrees in a circle, so are probably stuck with the nautical mile and knot


+1


"I said, now, I said ,pay attention boy!"

The cure for anything is salt water - sweat, tears, or the sea
Isak Dinesen
If a man is to be obsessed by something.... I suppose a boat is as good as anything... perhaps a bit better than most.
E. B. White
Re: Knots vs. Miles [Re: Team_Cat_Fever] #250420
07/02/12 07:53 AM
07/02/12 07:53 AM
Joined: May 2003
Posts: 4,451
West coast of Norway
Rolf_Nilsen Offline
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Originally Posted by Team_Cat_Fever


If we were to switch over tomorrow I'd be OK with it , it would just take some serious mental recalibration.I'd probably survive.


It would be a big task to switch from metric to imperial here if situations were reversed. It would probably cause mental meltdowns and blown fuses plus all kind of production slowdowns. I personally would positively hate it. I always struggle when I am building to US plans with imperial measurements..

Perhaps the process could start with the schools and teachers. The rest would follow from there.. I know that MIT and other institutions have professors and lecturers insisting on SI units in all coursework.

Re: Knots vs. Miles [Re: Rolf_Nilsen] #250423
07/02/12 08:03 AM
07/02/12 08:03 AM
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Posts: 12,310
South Carolina
Jake Offline
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Jake  Offline
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South Carolina
I'm pretty sure Congress had set a date for several years ago for the US to officially switch to the metric system but that killed as it got closer. The problem is that darn near every piece of manufacturing equipment in the US uses inches and feet. Every road sign is in miles. It's an expensive switch to make but it would be nice to see us start using both to make the transition. We have some manufacturing overseas and a lot of international customers so we have supported both measurement systems in our manufacturing environment for years. Our component drawings show both measurement systems on every dimension.


Jake Kohl
Re: Knots vs. Miles [Re: Rolf_Nilsen] #250425
07/02/12 08:20 AM
07/02/12 08:20 AM
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Hamburg
Smiths_Cat Offline
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Originally Posted by Rolf_Nilsen
Which is all very logical and pre-GPS oriented. I think the world have moved on smile

Yes logical and still used inside the GPS devices wink
SI units is a good idea, however they selected the wrong base measures (what is the meaning of 1m, I guess some old french length measure). If 1 m would be 1.825m, I guess the whole word would have already converged to the SI system.
So we will always measure distance in nm and speed in kts as long the earth turns because it is logic.

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