Design the ultimate Frankenboat-1) for Speed in water; 2) for comfort; 3) how fast to get done

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I hope she's still upright!
Looks like that low is sticking around a while too.
Does the (Clissold?) cat in the background have a canting rig?

 

[revintage]

Wow, looks great on the water. Congrats!

 

[MultiThom]

Really like how she sits on the water with bows up. Looks fast with the rudders on the floats...esthetics are great.

 

[he b gb]

I hope she's still upright!
Looks like that low is sticking around a while too.
Does the (Clissold?) cat in the background have a canting rig?

No, the 160 klm winds have permanently stretched the starboard shroud! Just one question, can someone tell me how to change the font colour ?

 

[he b gb]

Ps. your tri looks awesome billybob.

 

[revintage]

Billy Bob, I am not so experienced about having a boat on a mooring. How do one tie it to the tri?

 

[munt]

Beauty!

 

[MultiThom]

No, the 160 klm winds have permanently stretched the starboard shroud! Just one question, can someone tell me how to change the font colour ?

When typing the controls for text are shown above the text field. The color palette is shown as a palette in the 3 dots when you click it.

 

[unShirley]

@Billy Bob, The nasty weather headed for NZ has made it onto the news here, in SoCal. Might you consider retrieving the boat from the mooring and lashing it down on terra firma? Or, is it too late for that? I am keeping my fingers crossed that all of your hours of hard work aren't increased before you even get a chance to sail her.

 

[he b gb]

When typing the controls for text are shown above the text field. The color palette is shown as a palette in the 3 dots when you click it.

Thanks Thom, found it.

 

[Russell Brown]

It blew like holy hell two days after I first launched my proa. Man was I I happy to see it still bobbing around on my low-budget mooring the next morning.

 

[Billy Bob]

Made it through. Two days without power, phone, internet. Solid screaming winds. That cyclone was a beauty. Lowest low pressure ever recorded in New Zealand (962). We were just on the edge of the eye. Biggest waves and tides I have ever seen here on the east coast in twenty years.
The tri B3 did well to still be upright, attached to mooring and still have the mast up. I would think that would have been a good first test! I am looking forward to hopefully sailing B3 in the next week upon further inspection up close. I have only looked though binoculars to assess.
Thanks for all of the positive comments much apperciated.
I will try to get some sailing pictures/video.

 

[J_Grove]

Your boat looks beautiful, and now that it appears to have made it through the storm, I have a question for you. Why did you launch it right before a huge cyclone? Not trying to be snarky ... were you thinking it had a better chance of survival on a mooring rather than in your shop, or your yard if you don't have a shop? You wanted that "first test"?

My dad had three (not-yet-joined) hulls of a John Marples trimaran he was building in his front yard when Hurricane Hugo hit with a ~6' storm surge, and chained to trees, all 3 survived with only minimal damage. The 1920's era wooden boat he had spent years restoring was docked nearby, and was splintered into a thousand pieces. Thankfully he had already sold that one for materials for the tri. (He was dead within a year from cancer, but that's another story). You pay your money and take your chances.

 

[Billy Bob]

I was very confident in my mooring inside the harbor and my knot tying ability. If you can't tie knots tie lots! Not to be cheeky but I wanted to put a load on the structure and see how I did with the build. I did an close up inspection today and piddled around tidying up some of the rigging I left off like the prod (windage). Everything looks great. Tomorrow we do our first race so still a little nervous but will be happier when we get back in after the first sail.

Today was a very pleasant day where I am. No damage from the cyclone for us. The rest of the North Island didn't fare so well. Lots of damage (do and trees flooding) and still no electricity for a lots of households close by and further afield. I feel a little guilty going racing tomorrow but I have already helped out heaps. Went racing my Electron this afternoon just to get my head back in the game.

 

[revintage]

Did a mockup of the cockpit frame on my Frankentri build today. With the hull DWL horizontal I set the frame to be horizontal too.

Doesn´t look nice at all, maybe a little slope rearwards is the way to go, although not as much slope as the Nacra hull deck? Is there a rule of thumb of how to do it, a little slope might be helpful, as to drain spray to the rear?

Thinking of lowering the top of side tubes, that is now 8cm above, to be flush or ca 2
cm above the rear rectangular crossbar(red).

The track on the rear crossbeam(situated just behind the crossbar) is about 4cm above the crossbar top.

 

[MultiThom]

I wouldn't worry overmuch about design slopes for drainage since when your weight is in back, the bows should come up enough. If you think your body position is going to be amidships you have to consider tripping the lee bow for pitchpole. BTW, your home has a nice view. Jealous, me.

 

[Billy Bob]

Sailed my first race in B3 tonight. First time out sailing since launch. Awesome boat for 18 ft!
Well ballanced well behaved. It was pretty light up wind about 6 to 7 knots of wind. Boat speed was about 7kts. Right on the edge of hooking up but not quite. Out of a mixed fleet of 15 pretty well sailed regular club monos and multis we were right behind the 30ftrs and found weight placement way more Important than I am used to . After setting the kite we had a slight increase of wind to 10 kts the boat came alive. We were the fastest boat by a good margin hitting a steady 15 to 16kts. Wet but felt very fast. We finished right with the leaders so it is pretty much why I built the boat. To be in the mix for first to finish at our club. Of course there is a lot of room for improvememt/refinement. Pretty happy overall. Go the Frankentri!

 

[revintage]

found weight placement way more Important than I am used to

Seems to be a total success! Too nervous lengthwise or just lively? I have arranged my amas a fraction bow down, to get more initial stability and less risk of pitchpoling. I guess the N17 bows and also sterns are fuller than my 5.5 slender hulls, though.

Wet but felt very fast.

Spray when you hiked from the amas or spray from the aka?
Curious as I plan to add a triangle in the corner from foredeck to mainbeam.

 

[revintage]

If you think your body position is going to be amidships you have to consider tripping the lee bow for pitchpole.

The rear of the side tubes will be lowered 70mm relative to the crossbar but only 50mm in total, as the 80x40mm rectangular tubes under the crossbar and rear beam will be substituted for 100x50mm. The rear beam will thus be lifted 50mm relative to the front beam.

I am not crippled yet at 71, so I can move along the cockpit. The amas are arranged for a healthy slight bow down to make the boat less prone to pitchpoling downwind. I have a 21sqm F18 asymmetric for normal conditions and a +35sqm 49er assy for light winds.

 

[Billy Bob]

Spray from the aka. Muscles a bit tired today at 67 and very fit from a lot of cycling it took it out of me a little. I think once I get the tramp sorted it will be a lot more comfortable. Looks
Like your going well with your project Revintage. If you doubt your measurements just build it sail it and come back to it for revision over the non sailing season. Make it a fun build! As a frankenboat it doesn't have to be perfect out of the blocks. It's your ideas and engineering. Chances are that your boat will be perfect for you if you have a style of sailing you like.