| It can be calculated, but the exact distance is not as important as whether it overflows the part bulkheads and whether the hole can be reached to fix it.

I guess this is the summary of my prior post. I should read harder. 'Part bulkheads' is the vocabulary I needed.

| > is it reasonable for me to suggest that a slow boat is less safe? Again, not much of a sailor here...

| Sometimes. Slow gives more time to think and respond. Fast gives more capacity to arrive on time, escape or avoid bad weather. Ideal is a fast boat boat which can be sailed slowly. This is a major failing of tacking boats as they need to maintain speed to tack. This often results in them being overcanvassed and difficult to handle. Harrys do it well as they do not need to maintain speed to tack.
| Speed is one part of performance.
| The other is upwind ability. This is critical to get off a lee shore, either when the breeze blows up in an anchorage or when a storm is pushing you into trouble.
| Sailing upwind in a gale is not pleasant, but is much easier if the boat can be sailed slowly, under control from a sheltered position. Getting caught head to wind in big seas due to inattention or trying to point too high to spill wind is a drama on a conventional boat/rig. The jib backs, the boat is pushed backwards and a lot of work is required to get it back under control. On a harry, you either shunt or reverse the rudders and drift back onto course.

Thank you for taking the time to post this. Very informative to me.

Interesting that speed is needed for the safe operation of tacking boats.
It is also very interesting that most all the things that are needed for speed can make a tacking boat hard to handle.

I had been wondering why, as I saw it, there was a perceived bias against larger sails and masts, if the righting moments are so much better.

As every(ish) sailor comes from the tacking boats, the learned instinctive bias against over large sails and the practical difficulty they cause, shows in the 'conservative' rigging choices. Conservative, perhaps, from a hp point of view?

Is there a downside to putting a larger sail on the HP? Or, perhaps I should say, a sail with similar safety margin as the tacking boat.

Or let me ask directly. Should one put more sail on a HP? What are the pros and cons of this?

Regarding sailing up wind.
Is there a minimum that any boat should point to be safe?
Or is there an expected minimum?
How well can a HP point, and what increase and reduces this?

| > | The cabin on the EX 40 is 1.5m/5' wide x 4.8m/16' long, and has direct access into the hull, which is another 750/30" wide.

| > That seems a big cabin.

| It is, but not very high.

Is raising the roof reasonable? Increases windage?

For Owly, or other big cabin lovers, I guess this is a reasonable trade off?

Lifting the roof messes with the current cockpit. For Owly, the cockpit would all need redesigned anyway. Probably add an acrylic dome. Or the little pram hood equivalent.

I could see you designing an II recliner Rob. Wonder if I would be allowed to put one in the living room? Meh, fallback to the garage. Lawn furniture? Make it Collapsible and mount on the HP deck? I could see it featured in Steinar's renderings.

Speaking of cockpits.
http://harryproa.com/wp-content/uploads/2015/03/Cruiser-60-walk-through.mp4

The first 5 seconds shown the winch and line layout. Is that a typical layout for all the HP's?