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SFAS Land Navigation Tips
! Additional Topics These aren't essential for navigating the course, but they might come in handy. * Back Azimuth ** +180 if az <180 ** -180 if az >180 ** E.g.: 0's back azimuth is 180, 180's back azimuth is 0, 27's back azimuth is 207, 330's back azimuth is 150) * Intersection - Determining the location of an unknown point by shooting an azimuth to it from two known points then finding the azimuths' intersection. * Resection - Determining the current, unknown, location by shooting at two known points and crossing the azimuths. * True North - The axis upon which the Earth spins. Usually closer to Grid North than Magnetic North.
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Last changed: 2011/01/09 19:16