It is for an asignment and my teacher told me something about leaving metal anchor for fishing it will rust and make a hole in the boat or something like that And other disadvantages that i can put down
Galvanic corrosion could be a problem if boat is left in waterAnchor issue is goofyWelded aluminum is expensive but bestRivets will work loose if bout is used in pounding waves ( holes will oval eventually leakYes, aluminum is noisy dents but weight saving allows for less HP $$$ in motor department.