Blog Post

Determining the compass deviation by comparing of courses:
The procedures for determining the compass deviation described up to here were based on the comparison of bearings. (more…)Determining the compass deviation using reciprocal bearings:
The compass deviation can be determined by reciprocal bearings, if ashore does not exist leading lines and nor faraway objects. (more…)
Determining the compass deviation using a faraway object:
To determine compass deviation, we can use a single object, enough faraway, where we observe the compass bearings in the 8 (eight) courses. (more…)
Determining the compass deviation with leading lines:
If is known a good leading lines with the true bearing precisely known, and magnetic variation (declination) from nautical chart, is easy to found the compass deviation. (more…)
Leading line. Leading line sensibility.
The leading line sensibility: Is the property due to which, after the ship passed through the leading line (perpendicular), the 2 landmarks that make it up are staggered between them as soon as possible. (more…)