For more than 100 years , the America 's cup has been at the forefront of yacht design . From sailing 's traditional boats to modern ' winged ' yachts , CNN looks at highlights . Includes Australia 's controversial keel , which saw U.S. lose Cup for first time . The answer ? ` British sailor Andrew Smith 's death while training in Australia has raised some questions .
For more than 100 years , the America 's cup has been at the forefront of yacht design . From sailing 's traditional boats to modern ' winged ' yachts , CNN looks at highlights . Includes Australia 's controversial keel , which saw U.S. lose Cup for first time . British sailor Andrew Smith 's death while training in Australia has raised some questions .