More racers who
 

Oz wrote:
On Thu, 5 Feb 2004 19:15:53 -0000, "Wally"
scribbled thusly:

Bobsprit wrote:

And while we're at it, when you say some heel, what does that tranlate
to in degrees?

Some = 17%

17% of what? 90 degrees?

Nah, degrees come in bunches of 360:-)

I wasn't sure since you guys are hanging upside down!

I always thought your circles were much smaller than the USA...

LP (oh, I should go to bed and stop all of this...)

More racers who
 

Good juror! I haven't seen any proof myself...

LP

"katysails" wrote:
Donal stated: Bob thinks

You have proof of this?

--
katysails

More racers who
 

The keel and rudder are not as efficient. They don't get as good a
"grip"

Yet the boat goes faster...


Yup...a lot depends in the keel and hull form.

RB

More racers who
 

On Fri, 6 Feb 2004 01:50:46 -0000, "Donal"
wrote this crap:


"Bobsprit" wrote in message
...
That's some heel!

Enough for the deck-top fenders to roll overboard...

Real boats have toe-rails, wally! Tends to keep stuff on deck.

Cripes! Bob thinks that a toe-rail would stop a fender rolling overboard.

Only a dumbass like Bob would sail with his bumpers still on deck
anyways.




This signature is now the ultimate power in the universe

More racers who
 

Oz wrote:
Dunno about reefing, just looks like it all nice and flat.

Maybe it's just my eyes... the head of their mainsail looks much further
down the mast than the others.


Does it make a boat go faster to drag the lifelines in the water?


Rarely...but having the rail just clear is the way most sail best.

heh heh some put their rails under very quickly and easily... an old Six
Meter for example, with about 8" of freeboard. Oddly enough this is one
of the the boats I know that sails fastest when heeled a lot... didn't
have lifelines though.

One of the best demonstrations of the effect of heel was in a video of
the match race series, IIRC this one at Bermuda. Looking at a pair of
well matched boats, of the same design, with expert skippers & crews.
From straight ahead, you could see that one responded a bit less
quickly to the gusts, and heeled to about 40 degrees or so while the
other stayed more upright. The one that heeled slid to leeward each
time. They lost a safe windward position and ended up right in the other
boats gas, had to tack away...

Having the rail 'just clear' may be a good guideline until you have a
chance to study the boats performance more closely. But for the most
part, when the wind is up, it's easy to heel too much and think it's
going really fast.

Fresh Breezes- Doug King

More racers who
 

It is? My boat, like many, has a longer waterline when heeled.


SAIL LOCO wrote:
Most boats do. More importantly when heeling the sailplan spills wind. It's
wasted. The keel and rudder are not as efficient. They don't get as good a
"grip"

Waterline length isn't the whole game. The longest possible waterline
would be if the boat was submerged up to the gunwhales, which would
probably not be faster.

One issue to keep in mind is that more heel = more weather helm. If
you're dragging your rudder sideways, you ain't going fast!

Fresh Breezes- Doug King

More racers who
 

Waterline length isn't the whole game. The longest possible waterline
would be if the boat was submerged up to the gunwhales, which would
probably not be faster.

That's not a responsible comment. A heeled vessel, properly designed, can gain
WL without a significant gain in wetted surface.

RB

More racers who
 

One issue to keep in mind is that more heel = more weather helm. If
you're dragging your rudder sideways, you ain't going fast!


However, there is a sweet spot where the boat will gain WL, have good VMG and
not increase wetted surface.
The rest is gobbily gook and pretty obvious. Clearly a vessel heeled to far
won't make much VMG and have a flawed track.

RB

More racers who
 

Yet the boat goes faster....

But it would go even faster if it didn't heel over and it would sail closer to
the wind.
S/V Express 30 "Ringmaster"
"No shirt, no skirt, full service"

More racers who
 

Horvath, you have finally made a statement that actually makes
sense and is accurate. Thank you. I know I haven't been a very
good teacher. The only quibble I have is your use of the word
"sail," as Bob doesn't actually sail.

"Horvath" wrote in message
...
On Fri, 6 Feb 2004 01:50:46 -0000, "Donal"
wrote this crap:


"Bobsprit" wrote in message
...
That's some heel!

Enough for the deck-top fenders to roll overboard...

Real boats have toe-rails, wally! Tends to keep stuff on deck.

Cripes! Bob thinks that a toe-rail would stop a fender rolling
overboard.

Only a dumbass like Bob would sail with his bumpers still on deck
anyways.




This signature is now the ultimate power in the universe