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Old 29th Jul 2011, 19:02
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AntiMatter
 
Join Date: Apr 2011
Location: Pune
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Rhumb Line Track

what is the rhumb line track from A (4500N 01000W) to B (4830N 01500W) ?


Hey,
I had the same question on my 20th June test this year and i tried a bit of triangulation
But, i flunked so dont believe me.
You are going 10W to 15W so its bound to be a westward bearing. Second you are moving north from Lat 45 to 48.30 so its bound to be in the range of 270->360.
dlong(10w->15w) @ 45N is 5x60xcos45=218nm
Distance along 15W from 45N to 48.30N is 3x60+30=210nm
So you get a right triangle with base 218 and ht. 210 (since 15W is normal to 45N)
Tan inv(210/218)=48degrees.
So your true track is 270+48=318.
In the test, 330 and 315 were among the choices-so i checked 315.. dunno whether it's correct.
If you get something more accurate def lemme know.

Last edited by AntiMatter; 29th Jul 2011 at 19:09. Reason: Including original question
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