I sent the folowing message more than 3 hours ago but it doesn't show
on Google News so I try once more. Sorry if it is a double.:

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 larger (has a larger
circumference) than any parallel closer to the poles and smaller 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