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Alfred Archibald Linthorne
  • Kamloops British Columbia
  • Canada
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Aluminum Catamaran
53 Replies

I have built several boats from Marine Grade Aluminum I very much like the Pahi 42 desine .    I do not like the idea of dagger boards,  I prefer the small keel on the Tiki desines .I was hopeing to…Continue

Tags: aluminum, welded

Started this discussion. Last reply by Alfred Archibald Linthorne Apr 14.

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Chris Samoisy left a comment for Alfred Archibald Linthorne
"sorry being so late. i will put some pics together and send you. can you send me your email. i would send them there.  i m building the hulls in alu wheels on electric motor. so i can turn the hull and do the final welding in its best position.…"
21 hours ago

Profile Information

I am:
A home builder, I want a Wharram
What boat (s) are you building or do you own?
I wish to build a Pahi 42 I have built 2 boats in Aluminum
Country, City, and State?
Canada Kamloops British Columbia
About me or us?
I hope to build a pahi 42 in Aluminum
Looking to?
I would like more info on Wharram desines built in marine Aluminum
Website:
http://archie.linthorne@yahoo.com

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40 FT aluminum hulland deck in 3 days

Forty foot aluminum hull and deck  welded in 3 days seeing is believing Utube (Fastwater video MPG) check this out it is why I wish to build a  Wharam catamaran in  welded aluminum 

Posted on August 6, 2016 at 8:30pm — 1 Comment

Comment Wall (4 comments)

At 9:10am on June 29, 2016, Chris Samoisy said…

don t listen to the naysayers from wharrambuilders club. they got no idea what alu boatbuilding is, neither the advantages and neither do they know that an aluminium wharram 42ft upwards is not heavier than plywood with fibre and all the toxic things they put in and on the hull. i can say you that you save a lot of money and weight building in aluminium. i make all brackets, shrouds attachments and evverything in alu. as you said with a nice miller system or like we have a fronius tps2700 the entire story about alu welding is becoming to be changed in something very easy even for beginner welders. our hull is 51 ft long and was discussed in the past ones in the wharrambuilders. of course one had to compare my 51ft wharram style cat (which is in the hullsize, full standing headroom the entire hull length, 2,5m maxbeam hull, 8,1mbeam) with the tehini sardin tin-like hull instaed of comparing it with a pahi 52 or the islander 55. there you will see that my hull (20mm keelplate, 6mm up to chine, 5mm sides and roof, 6mm ringframes each 700mm, 45/6mm stringers each approx.270mm, 4 beam 400 by 315mm/6mm thickness) is for its strength you can say light compared to wharram cats of same range. but much much much stronger i say. and 100 % recyclebar, no resins and fibres toxic crab stuf you know. i hope you see thatyou are on the right track. you are not the first one. approx. you are the 4th or 5 th one building alu wharram or wharram style. i will put a crab claw balanced sail on a A-mast in front and a freestanding mast on each hull near the stern and a lugsail on each. all togehter ca. 90m2. cheers chris

At 12:50am on June 30, 2016, Alfred Archibald Linthorne said…

Thank you Cris I saw a Aluminum boat a while ago that had been submerged for 20 years in the sea it was hauled out and cleaned  it looked great no ill effects I could see.   Then I was told it was build for the Navy to test how it would stand up to salt water it,  I asked when it was built I was told 1939. Wow that sold me.   Marine ply looks lovely but it is not inexspencive  . so much less time , work and cost  building in Aluminum

At 3:19pm on July 21, 2016, Alfred Archibald Linthorne said…

if one used common sense about dissimular metals and  corrosion is not a problem with aluminum  I mentioned that boat that was built for the US Navy it is  a 30 ft hull submersed in salt water for more than 20 years built in 1939 is still sailing today . this sells me on aluminum and on boats over 40 feet it is just as light as wood with fiberglass or even lighter and is availible in 8 ft x20 ft sheets so very few joints to deal with how many wood hulls out there that have not seen  any wood replacement in over 85 years 

At 2:32am on October 21, 2017, Chris Samoisy said…

sorry being so late. i will put some pics together and send you. can you send me your email. i would send them there.  i m building the hulls in alu wheels on electric motor. so i can turn the hull and do the final welding in its best position. THAT CHANGES THE ENTIRE WAY OF BUILING THE BEST QUALITY ALU-HULLS!!!cheers mate

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