Tito

How much freeboard is enough freeboard?

Recommended Posts

For ocean racing, what average are we looking at in the new boats? 4ft? 5ft? 0ft like the classic lead mines...

Obviously less is better. Except it's not, as less is far wetter, reduces AVS at it's limit, and gets the sails closer to being sucked down by Neptune...

Just wondering. 

Share this post


Link to post
Share on other sites

Not measured in feet, perhaps? But in heal angle. Also depends on the hull form. Some hulls get hugely sucked into a hole which moves the wetness problem aft.

  • Like 1

Share this post


Link to post
Share on other sites

Freeboard and beam are interlinked. So you can’t give a simple answer.

Naval architecture 101.

SHC

  • Like 2

Share this post


Link to post
Share on other sites

And sheer too, eh, what was the question again, just wondering.

 

  • Like 1

Share this post


Link to post
Share on other sites

Dammit. Why does boat design have to be some complicated. JUST GIVE ME A EASY ANSWER.

Share this post


Link to post
Share on other sites
23 hours ago, him&her said:

Dammit. Why does boat design have to be some complicated. JUST GIVE ME A EASY ANSWER.

It also varies across the length of the boat.  Check out the Class40 rule for an example of free boats requirements written into a rule

  • Like 1

Share this post


Link to post
Share on other sites

My first boat needed enough freeboard for my girl and I to be horizontal. Sitting headroom was enough.

now, I don’t want to have to sit while cooking or moving sails around, at least in the main cabin. For and aft it’s still ok for sitting headroom.

 

my boat has less than most its length.

 

Share this post


Link to post
Share on other sites

If you sail ‘er under in 10knots tws it was too low. If your projected topside area exceeds your sail area it’s too high.  

You’re welcome.

  • Like 1

Share this post


Link to post
Share on other sites

Create an account or sign in to comment

You need to be a member in order to leave a comment

Create an account

Sign up for a new account in our community. It's easy!

Register a new account

Sign in

Already have an account? Sign in here.

Sign In Now