Very difficult to make a decent trimaran this way

Posted By: Tim C, F31
Date: 2/12/02 10:57a.m.

Report: outside forum guidelines

In Response To: This Mac 26X has NOT been photographically altered(pic) (Turol / Reynolds 21)

Trimarans are not just monohulls with outriggers - the trimaran form generates huge loads that are simply not present in a monohull and as such the entire boat must be reengineered to take the stress. For example the compressive load on the front beam during normal sailing on my F31 exceeds 10,000# In the '60s many home built designs were tried and many of these boats simply fell to bits when they were sailed in any kind of weather. That gave the whole trimaran form a bad name which still exists today. As you will hear from many people who have built quality tris' theyre construction has more in common with aircraft than boats. Tim

Messages In This Thread

This Mac 26X has NOT been photographically altered -- Turol / Reynolds 21 -- 2/11/02 5:47p.m.

well-------- the workmanship looks decent. -- Charlie Jones, Lindsey 21, Magnolia Beach, Tx -- 2/11/02 6:05p.m.

Interesting - however -- Todd J -- 2/11/02 6:11p.m.

Let's see: I have an hunter 23.5 and a Hobie 17...Hmmmm -- Fat Frank -- 2/11/02 8:26p.m.

Well, I hope the guy.... -- Steve E/Montgomery 15 #102 "Scamp", Lake Pleasant,Phoenix, AZ -- 2/12/02 3:21p.m.

I can almost hear Doug from here in Illinois - - -" -- Nick Scheuer -- 2/11/02 6:13p.m.

That doesn't look like a 26X hull. -- Roger, Potter 19, Seattle -- 2/11/02 6:26p.m.

Right. It's not a 26X -- MarkW -- 2/11/02 6:53p.m.

Definitely not a 26X, Looks too much like a "sailing" hull -- Al - Seaward Fox -- 2/12/02 3:06p.m.

I guess my question would be, why? -- John Hill, Mac26X, Kansas City, Mo -- 2/11/02 7:52p.m.

Must be a retired engineer...... -- Rik, Rhodes 22 - Minnesota -- 2/11/02 9:09p.m.

Re: Definitely NOT a 26X hull. -- Jeff G. Indiana, US Yacht 21 -- 2/12/02 6:13a.m.

Re: Speed etc -- Mark R -- 2/12/02 10:47a.m.

Re: Speed etc -- MarkW -- 2/12/02 11:00a.m.

But it gets a lot more complicated for a trimaran. -- Roger, Potter 19, Seattle -- 2/12/02 3:09p.m.

Slowed the boat down? -- MarkW -- 2/12/02 10:49a.m.

Umm...pretty sure that's a Mac 26, not 26X -- Brian S, Annapolis -- 2/12/02 8:15a.m.

 Very difficult to make a decent trimaran this way  -- Tim C, F31 -- 2/12/02 10:57a.m.

Re: Very difficult to make a decent trimaran this way -- MarkW -- 2/12/02 11:06a.m.

Re: Increased wetted surface -- Don E. -- 2/12/02 10:59a.m.

Re: I forgot about the water ballast. -- Jeff G. Indiana, US Yacht 21 -- 2/12/02 11:59a.m.

Re: I forgot about the water ballast. -- MarkW -- 2/12/02 1:26p.m.

I don't know what he ended up with -- Jeff G. Indiana, US Yacht 21 -- 2/12/02 2:16p.m.

Is that a mac with training hulls?? -- Eric Jon - Capri 22 - Lake Mead Nv. -- 2/12/02 1:43p.m.

Benefit of the doubt -- Mark R -- 2/12/02 4:34p.m.