renewontime dot com wrote:


Hi Roger,

I'm guessing your asking why one ship might be more prone to causing
seasickness than another?

There are alot of determining factors, to name a few (I'm sure there are
others, these are the ones that come to mind):

Seas - The most obvious reason. The seas off the Washington / Oregon coast
during the winter is about as bad as it gets. Gales hit every three days
(like clockwork) and the seas are big and steep. I've been in bigger seas,
but these seemed more uncomfortable.

Seas and how a particular ship/boat handles them, vary as to what feels
good or bad, depending on size, load condition, swell period, etc.


Vessel Motion - A vessel's size, obviously, has a big effect on it's motion
at sea. Additionally, a more stable vessel will roll faster, thus making
the motion more uncomfortable. snip

Couple all this with where are you working/quartered on the vessel.
Surprisingly, I've noted that "accommodation" forward, tends to affect
more people, than "accom" aft.

BTW, Bilge Keels are great additions .... funny part is, that their best
reduction in rolling ( note I said "rolling" ) is a mere 10%.
As for blowing out windows/portholes.... heading is immaterial, vessel
size is immaterial.... the right sea at the right moment, now, THAT'S
important.

otn