Joe's boat has a hull speed of 13 knots.

Faster than a Swan 53!!!!



RB
35s5
NY

Someone here has a 95 foot sailboat? Details, please! Photos?

CWM


Joe has claimed his motorsailor has a hull speed of 13 knots and sails
at over 9. It's 43 LOA, which makes it not only faster than my 35s5,
but also faster than a J133! It's the fastest sailing steel boat foot
for foot in the world.
Joe claims to know something about boats. 13 knots, folks. Faster than
a Jeneau 54 or Beneteau 57, faster even than a Swan 57 or Saga 48!!!!

Wowee Zoweeee!


RB
35s5
NY

"Capt" Rob wrote:
Joe has claimed his motorsailor has a hull speed of 13 knots and sails
at over 9. It's 43 LOA, which makes it not only faster than my 35s5,
but also faster than a J133!

A J-133 can go a lot faster than 9 or even 13 knots. Try
sailing one some time.

Joe claims to know something about boats. 13 knots, folks. Faster than
a Jeneau 54 or Beneteau 57, faster even than a Swan 57 or Saga 48!!!!

Wowee Zoweeee!


Charlie Morgan wrote:
Applying Froudes formula for hull speed, a 43 foot boat with a
displacement hull has a theoretical hull speed of about 8.79 knots.

That depends on the speed-length ratio, which of course
dependend on prismatic coefficient and length/beam ratio
among other things.

"Hull Speed" is not a carved-in-stone absolute figure.

DSK

"Hull Speed" is not a carved-in-stone absolute figure.




True, but do you think's Joe's boat sails at 13 knots....it's "hull
speed?"

C'Mon, Doug. IF I said that you'd be drooling like Michael Jackson at a
Chucky Cheese.



RB
35s5
NY

DSK wrote:
"Capt" Rob wrote:
Joe has claimed his motorsailor has a hull speed of 13 knots and sails
at over 9. It's 43 LOA, which makes it not only faster than my 35s5,
but also faster than a J133!

A J-133 can go a lot faster than 9 or even 13 knots. Try
sailing one some time.

Joe claims to know something about boats. 13 knots, folks. Faster than
a Jeneau 54 or Beneteau 57, faster even than a Swan 57 or Saga 48!!!!

Wowee Zoweeee!


Charlie Morgan wrote:
Applying Froudes formula for hull speed, a 43 foot boat with a
displacement hull has a theoretical hull speed of about 8.79 knots.

That depends on the speed-length ratio, which of course
dependend on prismatic coefficient and length/beam ratio
among other things.

"Hull Speed" is not a carved-in-stone absolute figure.

Correct you are Doug.

Bonehead failed to mention to Charlie that I also claimed to dimple my
hull like the underside of a Lexus to reduce drag with a ball pien
hammer to accomplish that speed. Bob took it hook line and sinker
.....now Charlie's sucking on his gills hoping to get a strand of chum.

Joe

DSK

Charlie Morgan wrote:
On Fri, 30 Jun 2006 12:05:20 -0400, DSK wrote:

Charlie Morgan wrote:
Applying Froudes formula for hull speed, a 43 foot boat with a
displacement hull has a theoretical hull speed of about 8.79 knots.

That depends on the speed-length ratio, which of course
dependend on prismatic coefficient and length/beam ratio
among other things.

"Hull Speed" is not a carved-in-stone absolute figure.

DSK

I believe I mentioned both the method I used to come up with that
figure, and I used the word "theoretical". Froudes formula is widely
accepted around the world for figuring approximate theoretical hull
speed. Where did you derive the notion that I felt it was carved in
stone? Do you know of some special reason (bordering on magic) why
Joe's boat would have a hull speed of 13 knots? I think the figure I
gave is probably close to the truth, or maybe even a bit optimistic.
If you think it is far off, I'd appreciate knowing your reasoning.

CWM

Your are just a **** hair shy of the true hull speed of my boat
Charlie.
Don't tell bonehead.

Joe

Charlie Morgan wrote:

I just found what may a glaring error in my calculation. See if you
can figure it out.


You wanted to say: I just found what may BE a glaring error in my
calculation.

Instead of the nonsence you typed......grammer Nazi.

Joe
CWM

"Hull Speed" is not a carved-in-stone absolute figure.


Charlie Morgan wrote:
I believe I mentioned both the method I used to come up with that
figure, and I used the word "theoretical". Froudes formula is widely
accepted around the world for figuring approximate theoretical hull
speed.

Yes, and he still uses a more-or-less arbitrary speed/length
ratio (usually given as 1.34), and also recognized that some
hulls can exceed this more easily than others.

.... Where did you derive the notion that I felt it was carved in
stone? Do you know of some special reason (bordering on magic) why
Joe's boat would have a hull speed of 13 knots? I think the figure I
gave is probably close to the truth, or maybe even a bit optimistic.
If you think it is far off, I'd appreciate knowing your reasoning.


Boats exceed their their theoretical hull speeds quite
often. Big heavy boats usually do it for only short periods
of time admittedly. "Hull Speed" is not a speed limit but a
wave-train limit. How can an 18 foot sailboat go faster than
20 knots?

You might do better to work backwrds... start with Joe's
figure of 13 knots and then figure what speed-length ratio
his boat would need to achieve for that, and look among the
design books to see what other types of craft (if any)
acheive that ratio.

Fresh Breezes- Doug King

"Charlie Morgan" wrote in message
Do you guys have some bad history between yourselves or something?

Everyone here has some bad history between each other at one point or other.

It's all in good fun.... if you keep the topic directly sailing related...
they become confused.. get bored and eventually succumb to logic.

Good luck

CM-

Capt. Rob wrote:

Joe's boat has a hull speed of 13 knots.

Faster than a Swan 53!!!!



RB
35s5
NY


Apparently you don't believe it. Joe has a fast boat, and in a good
wind, he can probably get up out of the water sufficiently that hull
speed doesn't matter anyway. - Try that on a Swan 53!

jim