trihulls? good or no good?

zuke

Seaman
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Jan 15, 2006
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50
i am about to get an old glastron trihull 15', and im wondering some pros and cons of trihulls. <br /><br />i am also wondering how hard it is to replace the wood flooring on the boat.<br /><br />thanks for any input in advance...
 

tashasdaddy

Honorary Moderator Emeritus
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Nov 11, 2005
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Re: trihulls? good or no good?

jason j has a good thread that take you thru the hole process. use the red SEARCH at the top of this page in the on screen name enter Jason J. you'll learn a lot. also search replacing floor. it's all been covered.
 

KaGee

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Aug 14, 2004
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Re: trihulls? good or no good?

I had a tri-hull. They run and handle great on small water. Will jar the teeth out of your mouth in big water. So it all depends where you plan on boating.
 

Texasmark

Supreme Mariner
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Dec 20, 2005
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Re: trihulls? good or no good?

On the 15' Glastron trihull and other trihulls of the era:<br /><br />Neighbor had one with a 60 Johnny and was out fishing with his buddies one day. He was at the helm and one buddy was in the "shotgun" seat. The second buddy went forward to tie up to a tree and they took a wave over the bow and sank the boat.....yeah they are supposed to float but he said his sank....came home with an empty trailer...so I wandered over and asked why the trailer was empty.<br /><br />These boats are not suited for open/rough water BTDT many times as brother in law had one too...another 15' with another Johnny 60. In Texas the wind always blows and the lakes are large. Very bad combination. Bro in law was following me, trying to get back one day and a wave popped up between us and it went completely over the boat with half of it falling into the rear of the boat.....nearly sank him.<br /><br />Additionally, if you try to run straight with a cross wind, the chine on the windward side digs in and you get a very rough ride and get very wet.<br /><br />I had an 18' (Caravelle with a 125 Johnny) and had similar problems on a slightly smaller scale.<br /><br />Will not own another.<br /><br />Mark
 

Terry Olson

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Aug 20, 2005
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415
Re: trihulls? good or no good?

The advantages a tri-hull offers are that they are wider at the bow (obviously) so you have a bit more space to work with and they are more stable when under way and anchored. <br /><br />The guys are right - They're rough on choppy water. They skip over the water rather than cutting through it a bit like a v-hull does. I'm not so sure they're more prone to swamping than other hull designs. If you're on bigger water in rougher weather than you should be any hull could be a problem. They can be heavier than a similar length v-hull too. <br /><br />There are millions of them out there, most with very happy owners, so you can't dismiss the design out of hand.
 

jtexas

Fleet Admiral
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Oct 13, 2003
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Re: trihulls? good or no good?

SLAM! SLAM! SLAM! SLAM! SLAM! SLAM!<br /><br />That's my trihull (15fter, 70mph) ride this morning with a 10 to 15 mph headwind. With a tailwind, about the same...maybe without all caps...and maybe only every other exclamation point. I couldn't go full throttle and expect to arrive with a working trolling motor.<br /><br />Mark I've had mine on Texoma in 4 foot waves and better, and Cedar Creek with a NW wind, about 12 miles to build momentum - never really felt in danger of taking waves over the bow - or the stern - course you can't even think about going into the wind at any speed in those conditions without getting soaked from the spray.<br /><br />Except for the poor ride in windy conditions I love it - well I wish it had more than 60" beam. Otherwise, it's a great boat. Seriously. But if I could find a suitable pad-v hull for a low enough price...
 

bomar76

Lieutenant Commander
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Jun 27, 2002
Messages
1,963
Re: trihulls? good or no good?

Notice no one builds trihulls anymore?<br />That alone should clue potential owners in.<br />The one advantage....you can buy them dirt cheap.
 

tashasdaddy

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Nov 11, 2005
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Re: trihulls? good or no good?

i've had both. prefer the deep v., of course i'm getting older and the jarring of the tri hull will kill you if you have arthritis.
 

JasonJ

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Aug 20, 2001
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4,163
Re: trihulls? good or no good?

Thats not true Bomar, Huricane among others are building tri-hull boats. They call them different things nowadays (Deckboats, Etc), and the noses are more pointy, but when it comes right down to it, they are tri-hulls.<br /><br />In answer to your question Zuke, it really depends on the individual tri-hull design. I always use my own boat as an example of a tri-hull done right because it was done right. The center section of my hull has about 21 degrees of deadrise (click my link and look at any pics of the rear of the boat and you will see what I mean). Deadrise is the amount of V a hull has at the transom area. The flatter the hull, the harder it pounds. My boat, at planing speed and above, cuts through chop upwards of 2 feet like it isn't there. In larger swells and rough water, my hull performs better with more speed, to a point. When I do experience slamming, it is not much different than in a V hull. I have had this boat in horrible water, and it has always handled very well. I have never had a drop of spray, or breach into the boat regardless of conditions or my poor choice in helmsmanship at the time.<br /><br />Now, the Glastron hulls have a flatter bottom to it, so you will experience a more rough ride, but all you have to do is slow down. Really, this all depends on the kind of water you are using it in. If it is on a moderate lake without the rough water associated with larger bodies of water, then it won't matter.<br /><br />In the end, some have had bad experiences with certain brands of tri-hull, My personal experience has been 100 % positive, but like I said before, my hull design is superior to most designs of that era. i think part of it was that Silverline was a Minnesota builder, and their boats saw duty on the Great Lakes, so Silverline designed them accordingly.<br /><br />One major downside is they are heavy for their size, and require more power to achieve the same speed as a V hull of similar dimension.<br /><br />And yes you can get them dirt cheap... :)
 

ricksrster

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Jun 19, 2005
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Re: trihulls? good or no good?

I have a 16'4" tri-hull. I like it. the only time i got wet and bounced around was in 4'waves at full throttle. I slowed down and drove according to conditions. I wasn't plowing through the waves, but was going over the top of them and slamming down making a splash. I didn't sink or take any dangerous amount of water.
 

MRS

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Jul 10, 2005
Messages
2,579
Re: trihulls? good or no good?

HEY,what rick said is true and if you read bomars quote you can tell he does not fish. the tri-hull is great if you like to sit still in the water while fishing or just hanging out much less rock than the v-hulls. But the vs do handel the ruff water running much better.
 

jch7450

Petty Officer 1st Class
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Apr 13, 2003
Messages
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Re: trihulls? good or no good?

hey Rick, full speed in 4 foot waves? That would be a ride you could sell tickets for in a tri hull! :D
 

ricksrster

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Jun 19, 2005
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Re: trihulls? good or no good?

It wasn't comfortable. The front cushions ended up on the floor. Gets alot of air under the boat instead of water. I didn't run like that for long. The first few jolts, and reflexes automatically made me throttle back. but on really wind days and rough water, you got to use your head to be safe. There weren't allot of other boats out that day! Tri - hulls like to be flat and stay that way. flying in the air is disgreeable with them.
 

zuke

Seaman
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Jan 15, 2006
Messages
50
Re: trihulls? good or no good?

lots of good things to ponder when purchasing the new boat. i guess the good news is, i will probably be spending less than 5bills on it, and the motor looks to be in top shape. so far though, nothing to make me think i should get anything other than my little tri hull. plus it will have a lot more room than my current boat ( a 1960 gale seaking 15' v hull and 35hp ob. ) should be a nice change other than all the work. and ill look up the stuff on doing the flooring too... thanks for all the replys.
 

Realgun

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Jul 31, 2003
Messages
2,484
Re: trihulls? good or no good?

Had one as a kid. Wind came up we got off the lake in a hurry. Have a V-hull now. The wind comes up I don't really mind till they get to 4 feet or white cappping. Going to fast in any boat, under rough conditions it will pound and V-hulls just let you pound a bit less.
 

Gary H NC

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Dec 1, 2005
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Re: trihulls? good or no good?

I had a 17ft Glastron trihull with a 75merc on it.I thought it was a great boat.A little rough on choppy water but other than that i thought it was a well made old boat.I ended up selling it for a grand more than i paid after using it 3 years.
 

Solittle

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Apr 28, 2002
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Re: trihulls? good or no good?

I had a 1970 19'er with the curved transom. I replaced the floor and there was nothing special about the job as I recall. I am with the others on the ride of a tri hull. They are great for small quiet lakes but not comfortable for open water so it depends on where you go.
 

Texasmark

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Dec 20, 2005
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Re: trihulls? good or no good?

Remembering my days, Trisonic made a 17' and a 19'. The 17 had a shallow center section like the other boats mention. The 19 had a deep V center section with lifting strakes like is in Jason's link. Will grant you that the 19' could certainly take some big waves like we always have on Texas lakes.<br /><br />Mark
 

Texasmark

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Dec 20, 2005
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Re: trihulls? good or no good?

Hey jtexas.<br /><br />I was (on Texoma) going to Soldiers creek one day from Lowe's Highport and the wind jumped up on me...seems like on that lake it blows from every direction at once; can't get away from it by ducking into a perpindicular cove.<br /><br />I was in my 17' Ranger BB which was deep V and padded. The waves were so big that I had to stand and sit as I took on each one. She would nose dive into the wave; shudder (like a destroyer) and pull her nose out of it with a big backwash of spray. I tried quartering and seemed head on was the only way I was going to get out of it. Was sopping wet but the old girl brought me through it. and the Merc I6 never missed a lick. Good ole tower.<br /><br />Then another time I was with a buddy with his 15' Invader tri hull. We were in Soldiers and tried to get back to Little Mineral....yeah I know a 15' on Texoma is a joke....but in the process he broke his trolling motor off the bracket in the waves. Wouldn't you know that the forcast for the day was light and variable winds....yeah right!<br /><br />Mark
 

studlymandingo

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Mar 22, 2006
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Re: trihulls? good or no good?

I had a 1977 Glastron I believe it was a T-177 Sportster or something like that. You could set the wheel forward and get up and walk around the boat while it would track straight. Same as everyone else though. Couldn't get in any kind of chop without the boat sounding like it was going to bust apart. Protected calm waters, the glastron will be great, open choppy water...may want to consider a v-hull.
 
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