Not exactly hilarious, more like chemistry.
Before there was fiberglass there were other materials that were used differently by different boat makers. There are more ways than one to even attach one piece of wood to another. Now, with the advances in the chemistry of composites has come a long way since the hand lay up days with carbon fiber masts (essentially FG with a different woven clothe made of carbon threads - a hand me down from aerospace and military research efforts) and other high tech fillers. Everyone who posts here knows something from their own vantage point and experience (I hope), so who is to say that one point of view is invalid over another? My point is that if you are looking for 1 answer then you need to become several kinds of engineer, a boat rigger, a marine engine mechanic, a reasonably smart plumber and it would not hurt to know just about everything else in this world there is to know that would be helpful in owning and maintaining a sailboat. Of course I left out provisioning, navigation, climatology, astronomy, determination, patience, and a steady supply of green backs and possibly a strong attraction to Rum or other beverage. Fiberglass boats have been around since the 1950's or so and so many advances have been made with production methods and materials due to feedback from previous versions. Some have worked well and some have worked out not so well. I have a circa 1960 14' Viking day sailor that is built (overbuilt by todays standards) like a tank. I also have a 1967 Tartan 27' that is also overbuilt (again by todays standards) and a more recent 1985 19' Lightning that is built more for racing (read: thinner hull but still quite safe). My point is that different standards were used at different times and sometimes liberties were taken with an accepted standard. There is now something called the ABYC that tries to set industry standards for all boatmakers (NMMA). Google those acronyms if you like and check out their websites to see what they 'do'. While you are at it check out SAMS, NAMS and other Surveyors websites to see what kind of information and education they are supposed to keep up with. I recently took a course in Marine Investigations and the level of detail and knowledge required (from Insurance to Zincs) is quite amazing. I highly recommend his website which has many free articles and boat reviews: http://www.yachtsurvey.com/ I also liked his book although he could have used my help as a proof-reader. And no, I am not on his payroll in any way.
