Bearings between 2 places trans-nationally
Guest
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The site http://gc.kls2.com/ gives great circle distances, great circle maps, and ETOPS radii, but alas does not give numerical track information.
Guest
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Guest
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Silly bag man,
Flying along an isogional will vary with altitude, potition and time, the magnetic field is a live 3D vector field and will change with altitude, latitude, longitude, and time.
frigatebird1
Great circles can have a constant true heading along the equator or along a longitude.
In other situations only rhumb lines have a constant magnet heading.
Great circles by clairauts formula have a constat number you can check, sin(true heading)*cos(latitude) = constant
Flying along an isogional will vary with altitude, potition and time, the magnetic field is a live 3D vector field and will change with altitude, latitude, longitude, and time.
frigatebird1
Great circles can have a constant true heading along the equator or along a longitude.
In other situations only rhumb lines have a constant magnet heading.
Great circles by clairauts formula have a constat number you can check, sin(true heading)*cos(latitude) = constant
Guest
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The other thing you can do is put the coordinates in your gps 
. This will give you a true or magnetic bearing.
If you don't know the coordinates then - if they are IATA locations - put them in the Great Circle Mapper http://gc.kls2.com. This will give you the coordinates (and a map etc). You can do a double check by seeing the distance is the same as your GPS said.
. This will give you a true or magnetic bearing. If you don't know the coordinates then - if they are IATA locations - put them in the Great Circle Mapper http://gc.kls2.com. This will give you the coordinates (and a map etc). You can do a double check by seeing the distance is the same as your GPS said.
Guest
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OK here's another "how do I get from A to B" website.
www.landings.com/_landings/pages/search/search_dist_apt.html
You put in the ICAO airport identifier for the departure and destination, your speed and endurance and the software calculates :
* Distance along great circle,
* Initial true great circle heading, and
* Flight time.
www.landings.com/_landings/pages/search/search_dist_apt.html
You put in the ICAO airport identifier for the departure and destination, your speed and endurance and the software calculates :
* Distance along great circle,
* Initial true great circle heading, and
* Flight time.
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silly bag man
I dont understand what you are saying.
I have written software for airlines that calculates the earths magnetic field for use in navigation and flight planning. I have never come across the term magnetic equator, is that a country specific term ?
The image below is the magnetic field at sea level with with the variation rounded to the nearest 5 or 10 degrees.
Could you please explain what you mean by the magnetic equator, and use the coordinates on the images as a reference...
I dont understand what you are saying.
I have written software for airlines that calculates the earths magnetic field for use in navigation and flight planning. I have never come across the term magnetic equator, is that a country specific term ?
The image below is the magnetic field at sea level with with the variation rounded to the nearest 5 or 10 degrees.
Could you please explain what you mean by the magnetic equator, and use the coordinates on the images as a reference...
