I am just a chemist that likes to sail and have spent all of my time on
inland lakes.

I thought it was latitude but could be longitude, but I do remember that
the diameter of the earth at the equator in in knots is equal to 360 X 60.


Capt. JG wrote:
"krj" wrote in message
. ..

Peter Bennett wrote:

On Fri, 01 Dec 2006 14:12:52 GMT, keith_nuttle
wrote:



Since the nautical mile is defined as one minute of latitude, I doubt it
will ever disappear in earth based navigation.


The Nautical Mile was originally based on a minute of latitude, but
the length of a minute of latitude varies with latitude, so an
International Nautical Mile is now defined as 1852 metres exactly, or
6076.11549 US feet, approximately, according to Bowditch.




I believe that the nautical mile is based on the minute of LONGITUDE not
latitude. Longitude doesn't vary with changes in latitude (or attitude).
That's why when you are using paper charts (remember those) you measure
the distance with your dividers on the longitude scale on the east or west
side of the chart.
krj


Where do you guys get this?? You have it 180 degrees backward. Or, is this a
troll? :-)

http://powerboat.about.com/od/forms_..._Longitude.htm

Your initial thought was correct.

--
"j" ganz @@
www.sailnow.com

"keith_nuttle" wrote in message
t...
I am just a chemist that likes to sail and have spent all of my time on
inland lakes.

I thought it was latitude but could be longitude, but I do remember that
the diameter of the earth at the equator in in knots is equal to 360 X 60.


Capt. JG wrote:
"krj" wrote in message
. ..

Peter Bennett wrote:

On Fri, 01 Dec 2006 14:12:52 GMT, keith_nuttle
wrote:



Since the nautical mile is defined as one minute of latitude, I doubt
it will ever disappear in earth based navigation.


The Nautical Mile was originally based on a minute of latitude, but
the length of a minute of latitude varies with latitude, so an
International Nautical Mile is now defined as 1852 metres exactly, or
6076.11549 US feet, approximately, according to Bowditch.




I believe that the nautical mile is based on the minute of LONGITUDE not
latitude. Longitude doesn't vary with changes in latitude (or attitude).
That's why when you are using paper charts (remember those) you measure
the distance with your dividers on the longitude scale on the east or
west side of the chart.
krj


Where do you guys get this?? You have it 180 degrees backward. Or, is
this a troll? :-)

http://powerboat.about.com/od/forms_..._Longitude.htm

MAYBE it will be the default, but knots will still be there. It's all computed in a microprocessor, and it's just a few lines
of firmware to calculate knots, or even furlongs per fortnight..


"Oliver Fleming" wrote in message ...
Hi,
I have been told that all new equipment, chartplotters, speedometers and the like will not have knots as a speed option.
Knots will be phased out and KPH will be the new standard for marine equipment.

Has anybody heard of this?

If so where?

Some links please if available.

Thanks
Oliver Fleming

"keith_nuttle" wrote in message
t...
I am just a chemist that likes to sail and have spent all of my time on
inland lakes.

I thought it was latitude but could be longitude, but I do remember that
the diameter of the earth at the equator in in knots is equal to 360 X 60.


Capt. JG wrote:
"krj" wrote in message
. ..

Peter Bennett wrote:

On Fri, 01 Dec 2006 14:12:52 GMT, keith_nuttle
wrote:



Since the nautical mile is defined as one minute of latitude, I doubt
it will ever disappear in earth based navigation.


The Nautical Mile was originally based on a minute of latitude, but
the length of a minute of latitude varies with latitude, so an
International Nautical Mile is now defined as 1852 metres exactly, or
6076.11549 US feet, approximately, according to Bowditch.




I believe that the nautical mile is based on the minute of LONGITUDE not
latitude. Longitude doesn't vary with changes in latitude (or attitude).
That's why when you are using paper charts (remember those) you measure
the distance with your dividers on the longitude scale on the east or
west side of the chart.
krj


Where do you guys get this?? You have it 180 degrees backward. Or, is
this a troll? :-)

http://powerboat.about.com/od/forms_..._Longitude.htm


Don't you mean circumference?

Who needs a knot when you got velcro?

Gordon wrote:
Who needs a knot when you got velcro?

concerning in your shorts, at least a knot won't grab you by the short
hairs.

"Roger Long" wrote in news:0zWbh.31688$zB4.19393
@twister.nyroc.rr.com:

Isn't KPS "Knots per Hour" = "Knots"?


Knots per hour, would be a unit of acceleration because "knots" means
"nautical miles per hour". Knots per hour = "nautical miles per hour per
hour". We sailors only DREAM of acceleration....(c;

Larry
--
If we eliminate religion, will they stop murdering each other?

"Capt. Rob" wrote in news:1164984521.878796.17520
@n67g2000cwd.googlegroups.com:

which is the Klingon
unit

"Klingons have Ridges"....like Ripple potato chips.

Oh, oh....is that a racist statement?! Gotta watch that....

(anonymous)

"Capt. JG" wrote in news:12n0t1osgh46l22
@corp.supernews.com:

Is that due to the fogdoppler effect?

No. It's due to them using on of the flawed Pentium processors.



Celerons? Yecch.....

What planet are Celerons native to?

"Capt. JG" wrote in
:

Where do you guys get this?? You have it 180 degrees backward. Or, is
this a troll? :-)



Excellent point. 360 degrees of LONGITUDE in a 10' circle around the pole
is only 31.4' or about 12.5" per degree. At the equator, the distance
between degrees is a tad larger, right?....(c;



Larry
--
If we eliminate religion, will they stop murdering each other?