Para los que buscan acero y aluminio.......

[caribdis]

Originalmente publicado por escat

Disiento. El aluminio no es un material acumulador de calor sino conductor. Lo que hace es conducir la temperatura igualándose con el ambiente que le circunda. Si el aire está a 30ºC tiende a dispersar calor para igualar esa temperatura. Y la obra viva a igualar la temperatura del agua. El exceso de calor lo conduce para igualarse. Es una reacción que se ve a muchos que visitan un barco de aluminio un día de sol, que empiezan tocándolo con cuidado y se sorprenden de que no esté ardiendo, como ellos esperaban.

He encontrado en un foro unos pro y contras de los barcos de aluminio que creo que son bastante acertados:



Pros

Light compared to steel.

Tough compared to GRP. Aluminium can take a real battering before it breaks. It may dent, but that doesn't stop you getting home safely.

They are different and generate interest wherever you go, if you like that.

Scratches that go through to bare metal are self healing. No emergency paint required like on steel to stop rust weeps.

You will probably come off best if you collide with a plastic boat.

Insurance companies like them. They have very few claims from aluminium boaters.

If properly designed, made and looked after, they last forever. No rot, rust or osmosis.

Cons

Difficult to get paint to stick.

Most designs are multi chined. Round chined metal boats are difficult and expensive to make. Similarly the deck, cockpit and coach-roof all tend not to have too many curves, making them look boxy.

Needs a good insulating lining otherwise noise, temperature and condensation are problematic.

Only expensive and not very effective antifoul can be used.

May be difficult to sell.

Manufacture and repairs require high skills and are expensive.

Wiring and electrical installation must be done especially carefully to avoid electrolysis from stray currents or galvanic corrosion from stray bits of copper.

You need to look after your anodes.