Most Bass Boat companies do chop their decks due to the complexity of the deck. Many will only say "hand Laid Hull" because the deck is all chop.with only corners and high stress areas having lightweight biax cloths to reinforce them. Many boat manufacturers use this "one layer" of woven roving in their boat to use the "hand laid" label on their product. As a generel rule, chopper gun laminates are on the resin rich side, (glass to resin ratio is higher on the resin side) which increases weight.
However it takes a GREAT gun operator (and there arent that many) to consistently control the thickness of a chopper gun laminate. There is nothing wrong with this proceedure, as long as there is a minimum of one layer of knitted fabic or woven roving in the hull.
BUILD YOUR OWN FIBERGLASS CHOPPER GUN SYSTEM SKIN
Many boat companies "chop" their skin coats and secondary laminates and combine the secondary bulk laminates with both chop and a hand laid layer or layers or woven roving, or knitted biax. BECAUSE all of the afore mentioned materials are sewn fabrics and CANNOT be appield by a gun which chops them up, they must be layed in the boat by hand. They rolled.Īny boat company who lays even ONE layer of cloth, woven roving, Biax knit, kevlar or carbon fiber can legally call it "hand Laid". ".I would also say if you wanted to sue any company that uses a roller on chopper gun and calls this hand layed you've got a case. So I would assume if a random pattern to be on the inside of the hull that no cloth was used and no hand lay up was used either.? Unless it was a live aboard with finished surfaces but the hull would be covered anyway and couldn't be seen. There would be no point structurally, or economicaly. What you can see - is NO indication what the boat was built from - only the last layer installed. Techno, - if you see cloth, that was the last layer put in the boat, If you see mat, that was the last layer in the boat, if you see woven, that was the last layer put in the boat, If you see Biax, that was the last layer put in the boat, if you see carbon fiber, that was the last layer in the boat. "If you see mat inside then there isn't any cloth." In many cases, we finish certain areas of TRIADs and STV hulls with a mat top coat - especially areas that will be painted or gel coated as a final finish due to the fact it makes a nice finish. Many boat manufacturers will finish a hull inside with mat to make a smoother and more even and easier to clean surface finish. ".but I doubt any one finishes the inside of the hull with mat." This is a guess." ( yes, and an incorrect one) But woven roving is not used to replace 3 layers of cloth. I wont bother to go into the discussion here on fabric loading, mass, strength, fiber orientation, resin matrix, etc. There is a GIGANTIC misconception that fiberglass gains its "strenth" from mass thickness. Nor how or why these fabrics are manufactured. How would it be weaker that the material it is constructed of ? You obviously do not understand how fabrics "load" under use. Where do you get this from? Are you talking about GUN Roving or Woven Roving? Woven roving is a very strong fabric material. Its sole purpose is to make in one lamination what would take 3-4 seperate layers of cloth. ".Roving is weaker not stronger than regular glass, slightly. I dont your source for this information but is incorrect. So in this method of use, is chop OK?:confused:
There are boat manufacturers that won't use any chop such as Allison, Stroker etc. Do they use chop? I don't know but even in the days of the "hand laid" Skeeter I have seen areas that may have been chopped so maybe they were hand rolling like pro-crap. Skeeter claimed hand laid hulls years ago but ended that claim when Yamaha purchased the company. There are some manufacturers that just won't say. Cajun, no longer in business, always admitted to using chop in their hulls. Again, not all chop, but some layers separating more substantial glass. Champion and Charger have both printed in past brochures their layup schedule and both included chop. Not all chop, just some for mat layers, fill, etc. Any honest Ranger dealer will tell you that ranger uses chop (2 have admitted this to me). I called Pro-Craft a few years back about their claim to being hand laid and they told me that they hand roll out their chopped layers and therefore can call the boat hand laid. These are a few but I'm sure there are more that won't admit it. Ranger, Stratos, Champion, Charger, Big-O, Javelin, Pro-Craft, Nitro.
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