The Soling keelboat beat out the Etchells and other keelboats to
become the Olympic three man keelboat, despite the fact the
Etchells, a similar design, is a faster boat.

Etchells historians will say that the Etchells class was ripped off,
since the Etchells is a faster boat because its greater waterline
length. This is true.

I feel the Soling won the Olympic three man keelboat competition
because of a fundamental design difference between the two boats.

What is the most fundamental and significant difference between the
Soling and the Etchells keelboats? [10 points]