actor, I wasn't trying to brush off your question with the leaky teaky club link, but there are many many versions and permutations of those Wm Garden style boats. ( I say style because he was given a lot of credit for those designs, yet was rarely compensated as a designer
should be by the builders.)
So, yes, some where cored, some solid.
With so many different model names like Formosa
, CT, Transworld, Yankee Clipper etc, it is dangerous to make generalizations about construction. Most would certainly have had plywood deck
cores (but not all!), and I believe all had a solid glass hull
schedules and thicknesses varied for many reasons, including the price
. The quality of workmanship even varied from one hull # to the next. Some were plagued with blisters
, other not so much. And of course, there were a few versions with a wood hull.
My CT41 was delivered new without teak
decks, which was one reason I made the purchase
, having heard so many nightmares about that issue. What I found out later was that she was built with teak
decks, then they were removed before she left the yard. In any case, I avoided the leaky deck troubles.
So, there are many stories and myths and anecdotes about these boats, and the condition of the used ones will be all over the spectrum.
However, I loved my CT41 and found she sailed quite well and would have been a fine boat for sailing the tradewind routes.