Small Tri's under 20', any mention of foils is banned..

Well, I've looked closely at the boat and don't see it. Oh, well......

 

Towards the sheer it flares out again, reserve buoyancy and maybe keep things dryer. There is a lot going on with that boat but it isn't a great drawing.

 

Doug, look at the Patterson thread, post #9. If that is indeed the 21' ?

 

I noticed below the waterline at the bow there is a line that seems not to belong-its just a short straight line just slightly above the bottom-do you see that? The bow has no flare and intersects the bottom like a "normal" boat. The only thing strange is that damn line! Let me know if you see it-please....

 

I should use better terminology....there is no protrusion forward but sweeping back the lower bows swell outward, the sides of the chin as it were.

 

P21

Cav, this is the bow and first station as I see it. It's not exact but its fairly close. The thin red line is the line I was talking about parallel to the bottom. It's a black line on the Patterson drawing.
Is this what you see?
click---

 

You're missing it Doug. I should have said something like how the lower hull bulges at the bow in the run aft of the stem. If you were looking at the stations from in front think of a tulip shape with more area lower, a narrower waist then the flair above. The line you are pointing to looks like a reference line, it is more of a sketch than anything else. I'm refering to the vertical black line.

 

Cav, what I'm trying to determine is whether or not you think the black line I drew for the bow and bottom is close or not close at all.

 

I think your red line is more of a stray mark.

 

Your section back from the stem is flattened with the curve reduced. Got to go, don't sweat too much on this one.

 

Relaxez vu Doug. But I don't see any straight line below WL at bow. This is an enlargement. And those bow sections are very Crowther-like, and you could say that the sections there are bulbous. Agree with Cav. The more I look at this little pocket rocket, the more I like it. Was too hasty remarking about too much buoyancy at WL. Apologies.

 

What you are probably seeing Doug is a reference line.

 

Guys perhaps move the Patterson nuances over to the "Patterson " thread.

As much as everybody seems to like it, I just don't see why you would build such a boat when you could build something like the 22 ft Scarab and get a proper foward bunk. My view is that 20 ft is a little too small to be anything other than a cheap racing Tri with the benefit of a small Cuddy. Perhaps some of you may want to get out some scaled paper and try drawing a 20ft boat to see how limited the accommodation will be.

 

Wayne, fair enough about the Patterson, that's why I started it's own thread.
20ft is limited, but that is the subject matter ? 3 Tornado hulls or a Horstman style Roomeran are all possibilities.
That Rory bloke took a Tiki 21 across the Atlantic, Randy Smythe did the Everglades.
I think at this end of the market the commercial manufacturers struggle to provide good bang for the buck so home brew is going to be a big part of the scene. For my money I think it is going to be very much a locally driven thing like the NZ 8.5's. If you want to create interest in this size range I think the focus needs to be as broad and inclusive as possible. Pot pouri class anybody ?

 

Totally agree on the class being a home brew, but we have to realistic, unless you build something like the Patterson, there just isn't much room for a cabin and cockpit area. As I have said, try drawing one on scaled paper, its interesting to see just how limited the frontal area is.

It will be interesting to see how Corsair gets on with the Pulse, have they hit on a niche market which hasn't really been looked at. Certainly I have been toying with such a boat for a very long time and I would guess a lot of others as well, its just we have never done anything about it, why ?