I’m in need of info concerning the building of a center box between beams 2 and 3 on a Pahi 42ft. It is not about building of the box, but that of material used.My old one needs to be rebuilt because…Continue
Started this discussion. Last reply by Lovako Oct 29.
"Hi Robert, Im all ears when people answer me in a decent way.
I built a large box hanging between beam 2 and 3 on a lip with x3 25mm stainless safety pins on each beam. My box lasted 10 years but must be rebuilt as the frame was built from soft…"
"I am also rebuilding the boxes on my Pahi 42.
Would suggest avoiding chopped strand because of poor strength to weight ratio. Skins of woven cloth on both sides is a good idea—especially for water and abrasion resistance.
"If you were meaning fibreglass cloth in epoxy, that's a different thing. Since you mentioned chopped strand that would indicate you don't know the difference between epoxy/fibreglass laminating and fibreglass laminating.
"Unlike most of the people on here I have built a Wharram as it happens!
Lorra people wanting to buy on "Wharram Builders and Friends" ; not so many building.
I shared a professional workshop with a professional fibreglass laminator…"
"Seems like a low IQ problem . . I never asked concerning the build of the box, BUT concerning the different streangths between 9mm ply, 6mm ply sheathed in one layer of fiberglass or 6mm ply sheathed in one layer glassfibre both sides.
By the way if…"
"Well exactly- you can't do a proper job with fibreglass by just layering onto thin ply. We have all seen some awful stuff done like that, it's very heavy, lumpy, and dirty and not strong at all. Not a good rep. for Wharram boats.
"Lovako - I don´t know much about the phi 42 boxes, but some suggestion on the method. You cold try what you have in mind, but I think it might end up being difficult to have a good result without having some sort of mould to place the chop…"
"Your solution would be regarded as a "bodge" in my eyes, though I am not over familliar with that boat.
You know that, so you asked for someone to tell you (honestly?) ..........6mm is dinghy material."
I’m in need of info concerning the building of a center box between beams 2 and 3 on a Pahi 42ft. It is not about building of the box, but that of material used.My old one needs to be rebuilt because of rot. I used 9mm ply but was wondering if I can build it lighter with the same strength by using 6mm ply covered in chop strand or woven fibre. The fibre on the outside will also protect against water splashes? Any help will be much appreciated.See More