Navigation Anomalies
Suzie Too - Western Caribbean
David & Suzanne Chappell
Tue 12 Apr 2011 12:11
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Hiya â Those of you that donât sail look away now -
Here is a strange one All my boat systems are set to Magnetic. I left
from Antigua at 61W and am heading to Bermuda at 64W. So I should be travelling
West of North, but my route tells me to steer 007 degrees. Andy the Torpedo (no
girls â he used to make torpedoes for BAe) tells me âCourse from Antigua to Bermuda is approx 351T, Mag Variation = 15 deg
W at Bermuda so assuming same variation the whole way 351 T is equivalent to
+15M ie 366 = 006M.
So that one is easy â you remember from your
Yachtmaster âEast is Leastâ and âWest is Bestâ and âTrue Virgins Make Dull
Companionsâ and âCadburys Dairy Milk Very Tastyâ for doing all that navigation
stuff
Anyway also on Saturday I had an AIS target on a
COG of 58 deg showing a heading of 77 deg. The radar echo and the AIS target
were misaligned by about 15-20 degrees, but a 19 degree variation between his
course readings â strange but true
Then Sunday my COG is 13 deg and my heading is 356
deg a variation of 17 degrees â a hell of lot of leeway and itâs actually
the wrong way, cos we are on stb tack
We are on the edge of the Bermuda Triangle â so
what do you think â is there something strange going on with compasses as lots
of navigators testify ?
But wait it gets worse â more to
follow
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