GOP Home Build

Go ahead !

 

That's an awful lot of concave rocker you have there!.

Think I'll pass on taking this one out to sea, maybe with 4hp certainly not more than 8.....and maybe a shallow pond. Those with more knowledge of small outboard cats may enlighten you further.

Handling characteristics should be 'interesting'.....

 

'Tis a strange beast indeed !

 

Still Fairing

Filling...Sanding...Filling...Sanding

And the centre console

 

That's a pretty heavy build for a planing cat. You also might find the hulls a little narrow and lacking in area for planing. Best of luck.
F

 

if after the whole effort it becomes a 5knot trout barge then so be it, but I'll give it a blast and see what happens.

Years ago I saw a 14 Hoby Cat with a tiny outboard engine that looked like a weed wacker as main power.

It probably weighed 15 lbs and pushed the Hoby at a grand clip.

In Long Island Sound the gents problem was the breeze would die and paddling home 5+ miles was a chore.

The boat went delightfully , perhaps 8K or more.

 

With two submerged transoms, this creation won't be doing 8 knots with a "weed whacker". The maiden voyage will be an "interesting" exercise, imo. I look forward to seeing it on youtube.

 

Curious craft.

What is it's displacement?

How many people will you be able to carry?

What are the bending moments on your transverse members in a steady and in a sea state?

How much will it weigh when it is done?

 

Curious Craft

Not Sure of the displacement, hoping for under 400kg.
How many people? Dunno, it has 10 meters of deck space. Will go slowly and add one person at a time till it falls apart. Im not sure what you mean by bending moments.

 

Latest Pictures

Ive added some chines and the upper limits of the hull. Now rebuilding and lengthening the Bow a bit.

 

Did you ever say what kind of a boat you started with?
Plans?

 

just lurking. interesting

 

It was two old Sailing cat hulls some old fella gave me for $50. I cant remember the name, but they were pretty well know. Theres not much left out of them. My plans are hand drawn so cant really upload them. They arent very complex, and im pretty much just feeling my way along and learning as I go. according to the feedback on the post it may not go very well, but I'll see it through and put it down to experience. I plan to do another after this learning project is over. I seem to be learning quite a bit about wood and glassing etc as I go. Maybe the finer details of Hydrodynamics still elude me somewhat.

 

paper tiger, i remember

 

http://sailboatdata.com/viewrecord.asp?class_id=4287

http://www.givencats.com/pages/About_RonGiven.cfm

"Larry Fay style hulls" http://www.gumtree.com.au/s-ad/north-haven/sail-boats/paper-tiger-catamaran-synergy-3377-/1050486482