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Nautical Miles Help

 
 
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Old 08-08-2009, 06:59 PM   #1 (permalink)
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Nautical Miles Help

Just curious as a complete newbee and researching. How does one find Nautical miles between two points and plot a course?

I plan on eventually taking a boating course to teach chartplotting but was curious if there was a web tool one could look at to get an idea of nautical mileage and course to go between points say Galveston TX to Cozumel or something similiar.

And then how do you find ports to to fuel at. Basically I wanted to plot a course for a couple destinations and see what type of time and cost would be involved.

I don't have a boat yet just doing some basic fact finding and loooking.

Thanks
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Old 08-08-2009, 07:07 PM   #2 (permalink)
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Quote:
Originally Posted by lots2learn
... was curious if there was a web tool one could look at to get an idea of nautical mileage and course to go between points say Galveston TX to Cozumel or something similiar.
Take a look at this site. It might help answer some of your questions without getting too deeply into the process.

http://www.clicktoboat.com/trip_enc.html

There are literally thousands of books, thick and thin, on the subject so you will be able to find something that fits your current level of knowledge and interest and encourages you to take it further.

Good luck and have fun.
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Old 08-08-2009, 07:33 PM   #3 (permalink)
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Perfect site.

I need some help on gallons/nm not sure my numbers were right.

avg 40 diesel sport fisher at 17-18 knots ??

Really appreciate the help.
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Old 08-08-2009, 10:43 PM   #4 (permalink)
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Quote:
Originally Posted by lots2learn
Perfect site.

I need some help on gallons/nm not sure my numbers were right.

avg 40 diesel sport fisher at 17-18 knots ??

Really appreciate the help.
If you look around the posts here you'll find enough speed, gal. capacity and gph figures and estimates for various boats to give you an idea and you'll increase your knowledge in many other areas. But to give you an idea to start off with a 50 Viking I've been operating carried 480 gals., cruised at about 19kts and burned about 33 gph.
Now, you can do the math and plot the courses on a chart or (once you get old and lazy) many GPS have a trip planning feature where you plot a route, hit plan trip, punch in the speed and GPH burn rate, starting time. and as you pull off the dock you can call ahead and tell them that you'll be there at say 1600 and you'll be taking 374 gals.
BTW, a nautical mile is aprox. 1.15 statute mile.
Good luck with your studies.
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Old 08-08-2009, 11:02 PM   #5 (permalink)
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Thanks for the info. Been doing a lot of reading/research just couldn't find a post with some similair fuel useage in my search try's. I know there there I've read them just couldn't find them. This gives me exactly what I need though.

back to studying.
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Old 08-08-2009, 11:34 PM   #6 (permalink)
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I mentioned on another thread this evening the need to be accurate with numbers on the Forum or risk being taken to task so for the more exacting: a nautical mile is 1.1508 miles, or 6,076 feet.
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Old 08-27-2009, 03:14 PM   #7 (permalink)
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miles

Quote:
Originally Posted by lots2learn
Just curious as a complete newbee and researching. How does one find Nautical miles between two points and plot a course?

I plan on eventually taking a boating course to teach chartplotting but was curious if there was a web tool one could look at to get an idea of nautical mileage and course to go between points say Galveston TX to Cozumel or something similiar.

And then how do you find ports to to fuel at. Basically I wanted to plot a course for a couple destinations and see what type of time and cost would be involved.

I don't have a boat yet just doing some basic fact finding and loooking.

Thanks
Draw a line on a map showing lat/long grid lines and degree ticks..measure that line on a North/SOuth grid line..degrees=NM.
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Old 08-27-2009, 03:22 PM   #8 (permalink)
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Google Earth has the ability to plot a course from Point A to Point B, or to plot a path consisting of numerous points. I can't open it from work to verify it, but I believe one of the choices you have in how Google Earth reports the distance is in knots.
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Old 08-27-2009, 03:49 PM   #9 (permalink)
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Lat/Long lines and degrees are on almost every nautical chart I've ever seen. Before anybody lets a computer (Google Earth, etc.) plot a course for them they'd best learn to do it using that thing sitting atop their shoulders. Otherwise they'll be like the kids who can't count change unless the register tells them how. Makes it rough when the power goes down.
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Old 08-27-2009, 04:22 PM   #10 (permalink)
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Quote:
Originally Posted by Mike Hall
Draw a line on a map showing lat/long grid lines and degree ticks..measure that line on a North/SOuth grid line..degrees=NM.
None of you sons of Magellan and Admirals of the Ocean Sea take issue with that?
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Old 08-27-2009, 04:39 PM   #11 (permalink)
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None of you sons of Magellan and Admirals of the Ocean Sea take issue with that?
"http://howtoimprovereadingcomprehension.com/" Couldn't resist using your good line. Sorry. Beyond what I wrote I really didn't know where to begin.
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Old 08-27-2009, 07:32 PM   #12 (permalink)
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GE is fine to quickly check out distance between destinations, just to get a rough nr.

for fuel, ports, etc... it depends where you are going... for the US, tehre are many website with info, starting with ******************

best thing you can do right now is buy yourself a copy of Chapman's, there is an entire chapter on charts and nav.
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Old 08-27-2009, 07:47 PM   #13 (permalink)
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Quote:
Originally Posted by GFC
Google Earth has the ability to plot a course from Point A to Point B, or to plot a path consisting of numerous points. I can't open it from work to verify it, but I believe one of the choices you have in how Google Earth reports the distance is in knots.
http://www.daftlogic.com/projects-go...calculator.htm

Here is the link.

Ken
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Old 08-27-2009, 11:41 PM   #14 (permalink)
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Quote:
Originally Posted by GFC
I believe one of the choices you have in how Google Earth reports the distance is in knots.
Google Earth lets you select distance in nautical miles.

A knot is a measure of speed, not distance
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Old 08-28-2009, 06:30 AM   #15 (permalink)
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for calculating with units

my very old favorite is

http://www.calculator.org/default.aspx

Cheers and have a nice weekend
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