Switching to manual by iteself

Sailor Steve · 05-02-13, 09:21 AM

Interesting. There is no 0730. 73 N 110 E is up in northern Russia. 07.30 N 110 E, however, is in the ocean between Vietnam and Malaysia.
http://itouchmap.com/latlong.html

MetalMania · 05-02-13, 11:00 AM

Remember also that the coordinates are being given in degrees and minutes, so in your example I'm guessing it's 7 degrees, 30 minutes N. Each degree is divided into 60 'minutes', so 07 30' N is halfway between 7 and 8 degrees. If you can't see that on the map, either zoom out more to see a broader range of degrees on the degree scales or find the general area and then zoom in to get a more precise view of the reported area. Depending on your options configuration, when a contact report comes in there will be a red symbol placed on the map at the location. You can click on the symbol and it will show the time, direction, and general speed that was reported. You can then try to match the time next to the map symbol to the time of the radio report to see if you're looking at the right one.

Most of the time, those reports will be so far away they won't really have any impact on your patrol. However, if any of them are heading in the direction of where I'm going or if our paths cross, I will plot a rough line based on the reported course and speed and then project my own position at that time to see if they might coincide. If they're 1500 miles away when the report comes in, it's probably not of much use to you. But if they're only a couple hundred miles away, you might be able to plot an intercept course to an area of possible contact if it doesn't take you too far off your intended course. On my current patrol for example, there have been several reports of task forces heading to and from my patrol area. I haven't been there long enough yet, but based on those reports I'm expecting to possibly encounter more military shipping than usual.

Sailor Steve · 05-02-13, 11:21 AM

Very good explanation, MM. Thanks for adding that.

Redmane · 05-02-13, 05:55 PM

Just a note about latitude and longitude: The reason this seems a bit different has to do with the tradition of navigation. The degrees and minutes thing refers to degrees and minutes of arc, the arc being the curvature of the earth. MM was right on in explaining this when he said the minutes being 30 means your target would be half-way between the degrees, which are always stated first. This whole thing is derived from the time it takes for the celestial bodies (sun, moon, stars) to move across the sky relative to a given position on the planet's surface, so I suppose that's why minutes were chosen as the smaller scale of measurement between the degrees.

05-02-13, 09:21 AM	#1
Sailor Steve Eternal Patrol Join Date: Nov 2002 Location: High in the mountains of Utah Posts: 50,369 Downloads: 745 Uploads: 249	Interesting. There is no 0730. 73 N 110 E is up in northern Russia. 07.30 N 110 E, however, is in the ocean between Vietnam and Malaysia. http://itouchmap.com/latlong.html __________________ “Never do anything you can't take back.” —Rocky Russo

05-02-13, 11:21 AM	#3
Sailor Steve Eternal Patrol Join Date: Nov 2002 Location: High in the mountains of Utah Posts: 50,369 Downloads: 745 Uploads: 249	Very good explanation, MM. Thanks for adding that. __________________ “Never do anything you can't take back.” —Rocky Russo

05-02-13, 05:55 PM	#4
Redmane Torpedoman Join Date: Apr 2013 Location: Somewhere in the Pacific Posts: 113 Downloads: 20 Uploads: 0	Degrees and Minutes Just a note about latitude and longitude: The reason this seems a bit different has to do with the tradition of navigation. The degrees and minutes thing refers to degrees and minutes of arc, the arc being the curvature of the earth. MM was right on in explaining this when he said the minutes being 30 means your target would be half-way between the degrees, which are always stated first. This whole thing is derived from the time it takes for the celestial bodies (sun, moon, stars) to move across the sky relative to a given position on the planet's surface, so I suppose that's why minutes were chosen as the smaller scale of measurement between the degrees. __________________ REDMANE Beneath this mask there is more than flesh. Beneath this mask there is an idea, Mr. Creedy, and ideas are bullet-proof. -V

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05-02-13, 11:00 AM	#2
MetalMania Watch Join Date: Apr 2009 Location: Rhode Island, USA Posts: 23 Downloads: 18 Uploads: 0	Remember also that the coordinates are being given in degrees and minutes, so in your example I'm guessing it's 7 degrees, 30 minutes N. Each degree is divided into 60 'minutes', so 07 30' N is halfway between 7 and 8 degrees. If you can't see that on the map, either zoom out more to see a broader range of degrees on the degree scales or find the general area and then zoom in to get a more precise view of the reported area. Depending on your options configuration, when a contact report comes in there will be a red symbol placed on the map at the location. You can click on the symbol and it will show the time, direction, and general speed that was reported. You can then try to match the time next to the map symbol to the time of the radio report to see if you're looking at the right one. Most of the time, those reports will be so far away they won't really have any impact on your patrol. However, if any of them are heading in the direction of where I'm going or if our paths cross, I will plot a rough line based on the reported course and speed and then project my own position at that time to see if they might coincide. If they're 1500 miles away when the report comes in, it's probably not of much use to you. But if they're only a couple hundred miles away, you might be able to plot an intercept course to an area of possible contact if it doesn't take you too far off your intended course. On my current patrol for example, there have been several reports of task forces heading to and from my patrol area. I haven't been there long enough yet, but based on those reports I'm expecting to possibly encounter more military shipping than usual.