Phill,
I believe the International 14s built in South Australia are prepreg.. Could be wrong...But from the looks of them they seem to be...
I would also be surprised if the Windrush International Moths aren't prepreg..
As for classes.. I believe the 18teens are all prepreg..

Apart from the oven which need to get to 120C prepreg is easier than wet layup.. Lay down, cover with core, lay down vac and cook.. The issue of not wetting out the carbon fibre isnt an issue..
Windrush uses a home made tin oven, but a ply oven would work as well.


Stewart