Dude, I have done my own analysis and deduction based on thought and logic.
I am looking to have it confirmed or denied. A little swinging back and
forth aside, I do not believe that it is possible for a spinnaker
particularly, but any other combination of sail for that matter, to turn a
boat on a bow mooring aft to wind. I believe that as all forces are
transferred to the boat aft of the bow, that the boat must be swung aft to
lee. Would you please be so kind as to weigh in with a non-arcane opinion?


"Nav" wrote in message
...
The path to enlightenment is paved with the stones of analysis, thought,
logic and deduction. He must pave his own way as we all have done. Only
the true sailor is capable of original thought (This excludes most
people with motorboats).

Cheers




Capt. Mooron wrote:

Aw fer cripes sake... just tell him it can't be done.... and be done
with
it!
It's like you are doin' a Feng Shui Shish Kabob with the poor guy here!

CM

"Nav" wrote in message
...
| Think of a boat sailing on her mooring. Does not the aft end follow
the
| bow? As she sails across the wind -tied to the mooring -does she not
| advance a little way up wind before stalling and tacking off again?
|
| Does that help you think more clearly grasshopper?

Yo Dude, did you consider a 5kt current with an opposing 1~2kt wind?

Scotty Dude

"Blorgad" wrote in message
...
Dude, I have done my own analysis and deduction based on thought and
logic.

Yes I have, but this is really a question about what the sails are capable
of. That could occur with current with or without sails. I do not believe
that the sails could turn the boat aft to wind while on a mooring, spinnaker
or otherwise.


"Scott Vernon" wrote in message
...
Yo Dude, did you consider a 5kt current with an opposing 1~2kt wind?

Scotty Dude

"Blorgad" wrote in message
...
Dude, I have done my own analysis and deduction based on thought and
logic.

I meant to practice raising your spinn.


"Blorgad" wrote in message
...
Yes I have, but this is really a question about what the sails are capable
of. That could occur with current with or without sails. I do not
believe
that the sails could turn the boat aft to wind while on a mooring,
spinnaker
or otherwise.


"Scott Vernon" wrote in message
...
Yo Dude, did you consider a 5kt current with an opposing 1~2kt wind?

Scotty Dude

"Blorgad" wrote in message
...
Dude, I have done my own analysis and deduction based on thought and
logic.

"Blorgad" wrote in

I do not believe
that the sails could turn the boat aft to wind while on a mooring,
spinnaker
or otherwise.


Sure they could, if you knew what you were doing.

Sv

I see what you mean, however, if you look where the force of the sail is
transferred to the boat, I believe that even under those circumstances, the
spinnaker would then want to turn the boat aft to lee once again. Even if
the wind was light enough not to allow that to happen, that would be what
the force would be attempting to do. Just to clarify, my argument with my
friend is, "can a spinnaker turn the boat aft to wind?". I believe the
answer is no.


"Scott Vernon" wrote in message
...
I meant to practice raising your spinn.


"Blorgad" wrote in message
...
Yes I have, but this is really a question about what the sails are
capable
of. That could occur with current with or without sails. I do not
believe
that the sails could turn the boat aft to wind while on a mooring,
spinnaker
or otherwise.


"Scott Vernon" wrote in message
...
Yo Dude, did you consider a 5kt current with an opposing 1~2kt wind?

Scotty Dude

"Blorgad" wrote in message
...
Dude, I have done my own analysis and deduction based on thought
and
logic.

"Horvath" wrote

You are correct. A boat on a mooring ball always points into the
wind.


YOU are NOT correct.

Scotty

Let's pretend that you knew what you were doing. How would you use your
sails to turn a normal fractional-rig sloop aft to wind while on a mooring?
I can visualize a possibility with something with a mizzen-sail, but I can't
see it on a sloop and particularly not with a spinnaker.


"Scott Vernon" wrote in message
...

"Blorgad" wrote in

I do not believe
that the sails could turn the boat aft to wind while on a mooring,
spinnaker
or otherwise.


Sure they could, if you knew what you were doing.

Sv

Why don't you read my response again, you idiot.

Blorgad wrote

Hi Bart senior,

Please read the letter again. The question is not how do we fly a
spinnaker
while moored, but rather is it at all possible for a bow-moored boat to be
be turned around by a spinnaker, or any other combination of sails for
that
matter, so that the aft end travels upwind?


"Bart Senior" wrote

On a calm day, you could fly it. It would only work
if you attached the mooring pennant to the stern of
the boat. The bow would have to face downwind.

Blorgad wrote
My friend and I are having a disagreement regarding the behaviour of
sailboats on a mooring. We both have limited sailing experience,
although
he
has a fair amount more than I. We were discussing running up a
spinnaker
at
mooring in calm air, just to practice putting it up. We eventually
concluded that this wasn't practical, but the argument came in as to
our
our
different conclusions as to why it would not be. I felt that there
would
be
no point to put it up, as it would just get blown into the rigging and
not
really tell us anything and possibly get torn. He was of the opinion
that
somehow the spinnaker could push the boat to one side, fill and turn
the
boat around. Initially he said it would go right upwind of the
mooring,
then reduced his claim to say that it would turn around at the point
where
it was attached to the line at the bow.

I am of the opinion that this is physically impossible and that under
no
combination of sail at a mooring could the boat turn around so that
the
aft
was upwind. I am of the opinion that you could get the boat to swing
to
one
side or the other a bit by backing the jib, but you could still never
turn
the boat around.

I would gratefully accept as many informed opinions as possible on
this
from
a sailing or physics point of view.

Fair winds,
Miles

You know, the name calling really isn't called for. You state that flying a
spinnaker would only work if moored to the aft. I agree. However, do you
believe that it is at all possible for a bow-moored boat to be
be turned around by a spinnaker, or any other combination of sails for
that matter, so that the aft end travels upwind?


"Bart Senior" wrote in message
t...
Why don't you read my response again, you idiot.

Blorgad wrote

Hi Bart senior,

Please read the letter again. The question is not how do we fly a
spinnaker
while moored, but rather is it at all possible for a bow-moored boat to
be
be turned around by a spinnaker, or any other combination of sails for
that
matter, so that the aft end travels upwind?


"Bart Senior" wrote

On a calm day, you could fly it. It would only work
if you attached the mooring pennant to the stern of
the boat. The bow would have to face downwind.

Blorgad wrote
My friend and I are having a disagreement regarding the behaviour of
sailboats on a mooring. We both have limited sailing experience,
although
he
has a fair amount more than I. We were discussing running up a
spinnaker
at
mooring in calm air, just to practice putting it up. We eventually
concluded that this wasn't practical, but the argument came in as to
our
our
different conclusions as to why it would not be. I felt that there
would
be
no point to put it up, as it would just get blown into the rigging
and
not
really tell us anything and possibly get torn. He was of the
opinion
that
somehow the spinnaker could push the boat to one side, fill and
turn
the
boat around. Initially he said it would go right upwind of the
mooring,
then reduced his claim to say that it would turn around at the point
where
it was attached to the line at the bow.

I am of the opinion that this is physically impossible and that
under
no
combination of sail at a mooring could the boat turn around so that
the
aft
was upwind. I am of the opinion that you could get the boat to
swing
to
one
side or the other a bit by backing the jib, but you could still
never
turn
the boat around.

I would gratefully accept as many informed opinions as possible on
this
from
a sailing or physics point of view.

Fair winds,
Miles