24 -26 foot catamaran designs (plans)
#11
Registered
![Default](/forums/images/icons/icon1.gif)
Talk to Wayne at Liquid technologies in Oregon, although he is buliding large aluminum Vees I'm sure that he could give you some input.
http://www.liquidtechnologiesllc.com/
http://www.liquidtechnologiesllc.com/
You beat me too it. I just caught the thread, and it was the first thing i thought of. If I remember, his boat is actually quite lite.
Darrell.
#12
Registered User
![Default](/forums/images/icons/icon1.gif)
But the one thing that hasn't changed is that aluminum still has about the same strength to weight ratio as it did then. And it still weighs exactly the same. You're going to have a challenge matching the weights of something like a Skater
Tha last challenge with aluminum is repairability. That can be a major issue.
#13
Gold Member
![](https://www.offshoreonly.com/forums/images/icons/gold_member_star.gif)
Thread Starter
Join Date: Mar 2003
Location: Grosse ile michigan
Posts: 2,374
Likes: 0
Received 91 Likes
on
36 Posts
![Default](/forums/images/icons/icon1.gif)
I dont have the knowledge or the want to build a state of the art 160mph aluminum cat....I thought it would be a fun project for my uncle and i to work on over the winter....I Just threw it out there to see if someone could help with a set of drawings....
Thanks for your input guys, keep the comments coming...
How is the cig coming chris....
Thanks for your input guys, keep the comments coming...
How is the cig coming chris....
#14
Registered
Join Date: Aug 2005
Location: sint maarten
Posts: 1,491
Likes: 0
Received 0 Likes
on
0 Posts
![Default](/forums/images/icons/icon1.gif)
The difference between now and 1982 (when the cougar's ruled) is pulse welding and cnc waterjet etc. I did read that time and motion studies calculated that it still takes longer to make a fiberglass boat than a wood one (a la chris craft). So a modern production line creating aluminum hull could be feasible. But everyone likes the compound curvature fancy Sea Rays now (every damn piece has a mold).
If I had a pulse welder and a cnc water jet, I'd be making all kinds of stuff.
If I had a pulse welder and a cnc water jet, I'd be making all kinds of stuff.
#15
Registered
Join Date: Mar 2002
Location: Sterling Heights MI
Posts: 369
Likes: 0
Received 0 Likes
on
0 Posts
![Default](/forums/images/icons/icon1.gif)
I was refering to MIG production type welding, which is faster than TIG and traditional requires less skill.
The 350 was the machine "I heard" was good. I've only done some MIG, and don't want to learn TIG or gas or anything. I don't have a $3500 welding machine at the house nor the amp line rating either.
To my knowledge (I'm no welding engineer) TIG is relatively slow. And to weld a hull with TIG you could go work at McDonalds for the same amount of hours it would take you to weld the damn thing-and buy a skater
The 350 was the machine "I heard" was good. I've only done some MIG, and don't want to learn TIG or gas or anything. I don't have a $3500 welding machine at the house nor the amp line rating either.
To my knowledge (I'm no welding engineer) TIG is relatively slow. And to weld a hull with TIG you could go work at McDonalds for the same amount of hours it would take you to weld the damn thing-and buy a skater
![Drink](/forums/images/smilies/drink.gif)
#16
Registered
Join Date: Aug 2005
Location: sint maarten
Posts: 1,491
Likes: 0
Received 0 Likes
on
0 Posts
![Default](/forums/images/icons/icon1.gif)
true enough. but the quality of a mig weld is generally contaminated and in all ways inferior to that of a tig... and you wouldn't be welding the hull together anyway if youre smart.
never the less if that's the way you want to go then that's your choice to make.
never the less if that's the way you want to go then that's your choice to make.
#17
Registered User
![Default](/forums/images/icons/icon1.gif)
Stagnated a bit. Dave is moving it along but he got bust with throttling the Clevland Construction Talon in OPA so his time has been limited. The project expanded and my time contracted so when it became apparent it wouldn't see wtaer this year, we decided to take our time. Plus as always, the project has expanded. I keep coming up with "I should do that's", if you know what I mean.
Back when I was a kid, the guy that owned Alliance Manufacturing (Genie Garage Door Opener) set off to build aluminum offshore boats. They were called Maritime. I owned one of their 20's once. Built like a battleship and the entire outside was engine turned. I remember seeing the big one's atthe plant when I was a kid in the 60's. Here's one- http://www.offshoreonly.com/forums/s...d.php?t=171539
Back when I was a kid, the guy that owned Alliance Manufacturing (Genie Garage Door Opener) set off to build aluminum offshore boats. They were called Maritime. I owned one of their 20's once. Built like a battleship and the entire outside was engine turned. I remember seeing the big one's atthe plant when I was a kid in the 60's. Here's one- http://www.offshoreonly.com/forums/s...d.php?t=171539
#18
Registered
Join Date: Jul 2008
Location: Crystal Lake, IL
Posts: 242
Likes: 0
Received 0 Likes
on
0 Posts
![Default](/forums/images/icons/icon1.gif)
I dont have the knowledge or the want to build a state of the art 160mph aluminum cat....I thought it would be a fun project for my uncle and i to work on over the winter....I Just threw it out there to see if someone could help with a set of drawings....
Thanks for your input guys, keep the comments coming...
How is the cig coming chris....
Thanks for your input guys, keep the comments coming...
How is the cig coming chris....
Although I have a 31' cat, I would be interested in getting involved in a single engine project. I have over 20 years in front of CAD applications and am currently using SolidWorks for modeling with Cosmos for FEA. If this projects develops some legs, count me in for support. -Jeff
#19
Registered
![Default](/forums/images/icons/icon1.gif)
HyLite boats in Ontario Canada is building beautiful aluminum v hull boats. http://www.hy-litepowerboats.com/ They have an inner and an outer skin with the gap between filled with expanding foam.
#20
Registered
![Default](/forums/images/icons/icon1.gif)
Unless you can reduce the weight enough to get the speeds up for the hull to start developing lift, I'd say stick with a v-bottom.
Find the weight of some similar frp hulls (preferably unrigged) and see if you can come close to that with a basic aluminum structure.
Find the weight of some similar frp hulls (preferably unrigged) and see if you can come close to that with a basic aluminum structure.