Figure on a 2800-rpm cruising speed with a mid-20s boat speed. Folks enjoy riding in them at a good clip on rivers, lakes, and even the Chesapeake Bay. Lymans are what one would call “sea kindly” boats. Each plank is laid proud such that they both ride differently than a hard-chine carvel smooth-planked Chris-Craft runabout or cuddy cabin boat. Note that fiberglass and wooden Lymans have a round chine. Large waves and wakes simply have too much action to allow the small wiggle room to be noticed. The smaller the chop, the easier it is to discern. Yes, it’s subtle, but I felt a noticeable difference. It is this solid nature of a fiberglass boat that doesn’t allow the slight wiggle enjoyed by a wooden clinker-built planked boat as it moves through the water. That final mixture turns into a solid section of fiberglass after the liquid-string mixture exits the gun and hardens. The air-rich mixture is then rolled or squeegeed into a tight mix of fiberglass, facilitated by a catalyst. The resin and “string” mix in the air and splat against the mold for whatever size fiberglass part is needed. It’s then sliced or chopped in a specialized “chopper” handheld spray gun. Layup only required a conventional chopper gun and some hand work.Ĭhopper gun refers to the process where the resin is mixed in the air with fiberglass that is in a string form. The 26-foot length only required a single hull mold. Plank edges and all the minor details were copied and/or replicated to create the two hulls.Īll the fiberglass hulls came from the same mold at Lyman Boat Works using the equivalent wooden model. A wooden hull was always used to mold the fiberglass hulls thus the shape was the same. The fiberglass Lyman hull in this case is a clone of the wooden version. I sea-trialed both fiberglass and wooden-hulled models this past summer, and I’m now sharing my personal observations with you. The author took a ride in a 26-foot wooden Lyman at CBMM’s Antique and Classic Boat Festival in St. The very slight movement of the individual planks definitely allows for a softer ride in the wooden-hulled boat than in the fiberglass model. The same hull shape done in fiberglass rides differently than the same model with a wooden hull. They feature a “clinker-built” hull planking that in a wooden boat model works with any chop in such a way that it cuts through the chop, delivering a ride that is sublimely softer than a hard-chine fiberglass boat. Layed up some test sections last night with the Phoenix and it worked well.A wooden Lyman is known for its ride. I solved this by always having a cup of acetone and a brush handy to give it a quick cleaning between triggering. The external gun that came with my MVP system (think its a Graco or Binks) would occasionally gel up a bit in the air/fluid cap i think the cat would swirl around in the air and there would be a bit that would activate the residual resin on the cap. that was when i switched to "red pop" as we call it the only resin/cat ratio issue i have ever had was when i left the pin out of the cat pump and built an entire four foot by eight foot hatch. So far i have had very little trouble with the system as a whole and it does just what i needed it to do. I have been in the FG biz for long enough to know consistency and attention to details goes a long way, again i only use my chopper gun for quick back up of limited use molds and i have been using tinted catalyst almost since i first got it. Great info, and thanks for taking the time to post it. I am curious if anyone could give me a quick pro/con on internal vs. When i bought my Fit MVP Magnum my thought process was it just seemed simpler and less prone to issues with an ext mix gun. So far it has helped me tremendously for just that and i am pretty happy with how its working out, care and maintenance isnt to bad if you keep on it. I'm a thirty plus year fiberglass veteran and just started using a chopper gun several years ago, mostly to do quick and dirty very low production ( two to five parts) molds. seemed to work fine once i figured that out. Not sure if this is a safety feature or what but the round trigger is an oddity to me. Triggers a little funny, thought it was not working at first but the way it works theres a slide thing thats required to be in a certain place on the tripper to push the plunger to activate. Just did a few test panels waiting to see how it cures out. Seems to work nice, i like the ergonomics of the body of the gun. Just hooked it up this afternoon for the first time btw.
0 Comments
Leave a Reply. |
AuthorWrite something about yourself. No need to be fancy, just an overview. ArchivesCategories |