1 tonne
Fiberglass is actually very flammable.
I would think a fiberglass boat is better than a wooden boat because a wooden one can rot and would be hevy to move weres the fiberglass boat wont rot and is light so would be easy to move.
A sponge and some fiberglass sealers works the best on a fiberglass boat. There are other fiberglass cleaning material available depending on what your particular need is. For just basic cleaning, I would go with the sponge and fiberglass sealer.
You can remove dried barnacles from a fiberglass boat using a stainless steel scrubber or a pressure washer for large barnacles.
A boat floats by keeping water outside, regardless of any material
to calculate the recommended occupancy for any boat under 20ft: length times width divided by 15 L x W / 15 = Maximum occupancy
1937 by Ray Greene
Vietnam War PBR's were built of fiberglass; they worked fine. That's the boat in the film Apocalypse Now.
It would depend on the construction of the craft, but as a general rule, the fiberglass boat will be heavier.
My 16' fiberglass runabout (Larson Flyer 15' 11") is listed with a weight of 1080 lbs. The 110 HP outboard on it adds a listed 320 lbs to that. I always thought it to be heavier than the weight of a like aluminum runabout. In checking specs on line I find that all aluminum runabouts of this size that I could find listed had a weight of about 400 - 700 lbs more than the weight of my fiberglass boat. All of these weights are finished boats that is ready for the water. Fuel, people, extra gear and equipment weight is not included.
I'm not certain about the Sears 17' boat,however my dad owned a 1968 Sears 15' fiberglass boat,and it was made by a company called Arkansas Traveler.I've been told Arkansas Traveler is out of bussiness,