Yet another correction:
It is of course the parallels closer to equator that are the larger
ones, and the ones closer to the poles that are smaller. But you
already knew that I meant the opposite of what I wrote, didn't you?

Hint: A "parallel", the circle that consists of al points at a given
latitude (for instance 56 degrees North), is smaller (has a lesser
circumference) than any parallel closer to the poles and larger
than
any parallel closer to equator, but they are all crossed by the same
number of longitudinal.

Peter S/Y Anicula

P.S. Am I talking to myself here ?

"Peter S/Y Anicula" skrev i en
meddelelse ...
Should have been "unless you cross the equator exactly after the
first
21 hours" instead of 7.
I thought you went North first. My teacher apparently forgot to tell
me to read the question thoroughly before answering.

Maybe I should comment a bit further on the "geometrical component".
It could be defined as a trigonometrically function of your
start-latitude and your speed over the ground.
Hint: A "parallel", the circle that consists of al points at a given
latitude (for instance 56 degrees North), is smaller (has a lesser
circumference) than any parallel closer to the poles and larger
than
any parallel closer to equator, but they are all crossed by the same
number of longitudinal.

Peter S/Y Anicula

"Peter S/Y Anicula" skrev i en
meddelelse ...
"Thom Stewart" wrote:
......wouldld include leeway, tide, deviation and variation,
windage,
helmsmans error, etc.

That's pretty close, but you are missing one thing:
Unless you crossed the equator exactly after the first 7 hours
which
is statistically very unlikely there vould also be a geometrical
component due to the fact that you are sailing on a globe
and not on a pancake.

Velocity over the ground (?) ("beholden fart" in my native
language)
in a unit of nautical miles
per 56 hours, would be the closest I can think of, but it doeen't
make
much sense.


Peter S/Y Anicula