"Nav" wrote in message
...
“The starting point when dimensioning the rig is to calculate the
righting moment. It is commonly agreed that a heel angle of 30o is a
good design angle. This corresponds to a reasonably high wind strength
with the sails still generating high loads and the boat making good
speed through the water.

That doesn't sound right to me.

My boat definitely performs better at a smaller angle of heel. I'd say 15 -
20o. Beyond 20o, performance begins to suffer.

Of course, some boats are designed to sail well when keeled over. Some of
the mini TransAts have keels that are adjustable sideways, *and* also have
an adjustable angle of attack!!! These keels are known as "3D" keels.



Regards


Donal
--

No nno no. You must be wrong. Doughn says it's 12 degrees heel thats best.

But seriously, I'm just quoting reference texts. As you boat is a Farr,
I suggest she'll will go faster at closer to 30 degrees heel beating
than if you ease off the sails and stand her up to just 20 degrees. Look
at your instruments. Try it and get back to me. You'll need 20 knots of
wind of course nand don't forget to lower the traveller if the helm is
getting too much.

Cheers

Donal wrote:

"Nav" wrote in message
...

“The starting point when dimensioning the rig is to calculate the
righting moment. It is commonly agreed that a heel angle of 30o is a
good design angle. This corresponds to a reasonably high wind strength
with the sails still generating high loads and the boat making good
speed through the water.


That doesn't sound right to me.

My boat definitely performs better at a smaller angle of heel. I'd say 15 -
20o. Beyond 20o, performance begins to suffer.

Of course, some boats are designed to sail well when keeled over. Some of
the mini TransAts have keels that are adjustable sideways, *and* also have
an adjustable angle of attack!!! These keels are known as "3D" keels.



Regards


Donal
--