My small input,
Meta and pro-Meta in France
( the builders of Montoissier "Josua" and many mythical ships from the 70's) makes aluminum
boats and cats for over 30 years and they ALL still sail !
French singer "Antoine" is sailing around the globe for the past 30 years on his 40 feet "Banana split" Strongall cat with no complains.
Sister-ship 43 feet " Mogli" has been sailing for the past 3 years in the amazon, Pacific and is preparing for the Antarctic next season and Alaska
Number 3, my own 43,5 feet " bonobo" will be launched next month and is equipped for extreme climate (Alaskan and Patagonian winter, tropical heat, Amazon) with central heating
, extra isolation, double glass widows, dive compressor
, water-maker, generator
, 8 solar-pannels, two 55 HP diesel-engines, full satellite
Thens of other versions of such cats have been produced, up to 65 feet for diving
, aquaculture, fish
farms, etc.... They are "working boats"
One do not buy a Aluminum
cat for no reason, if the plan is to sail the warm calm waters of the Caribbean
and the bahamas
, it would be stupid to spend the money
on such an expensive project
; These vessels are slow and heavy, the are sea land-rovers, or Humvee's....
These are "off-road" cats that can beach on rocks, bump into something with no or moderated damage. The are the one in a lifetime investment for very special sailing destinations.
"plastic or tupperware" boats are not made for the North-west passage
, Patagonia or the cap horn... Steel
and aluminium ones are.
And the few disadvantages are minimal to the advantages, "if", again one need such a type of boat for the chosen program...
There are special anti fooling paints for them, they are equipped with "electrical leak" detectors.