On Fri, 6 Nov 2015 13:36:05 -0800 (PST)
DerbyDad03 wrote:

In essence, the All American Soap Box Derby does have an "unlimited
class".

interesting
maybe unlimited does not always make sense

even with the millions they spend on america's cup boats they still have
to build them with constraints

maybe where they are already spending millions in the top class an
unlimited class would make more sense

hydrofoil sailboats might be interesting to see racing