For those who like to record
their position, in case of GPS
failure, but rarely actually plot this position on paper charts
. I have found it useful to record
position as a distance and bearing to a known waypoint (usually the destination). I feel this is better than recording lat and long for several reasons.
There is less numbers so less chance of making an error.
The numbers “make sense” so less chance of making an error
The numbers can be recorded once an hour, but are easy to remember at more frequent intervals.
In short it is much more useful and easy to relate to when our destination
is 200.5nm away at 95 degrees than that we are at 41.10.65N 09.21.77E. In the event of a GPS falure the former position is accurate enough for the dead reckoning or celestial navigation
that will follow. I am also likely to remember that we had dropped to 195nm to go just before the GPS went blank.
I am sure others must use this method, but everyone I have ever sailed with always records lat and long even when not plotting the position.