I think the best place to start searching is the International Hydrofoil Society. They have lists of books, sites, publications, etc.
www.foils.orgThe Catri sites are also very interesting:
US Catri:
www.aegeanmarine.comGermany:
www.catrimarine.deBrazil:
www.multicascos.comLatvia:
www.catrigroup.comLuiz
