Moths and Cats are very much opposite in terms of how they (Currently) go fast...
1, boats need to be LIGHT to remove drag from creating loads of lift to fly -> Small boats
2, boats need LOW air from drag -> small boats
3, once a boat is flying, we need a low drag (and low power) rig as form drag is low, thus as we do not need lots of power, we do not need lots of RM to control it ->Thin boat once airborne as less aero drag
4, as we do not need lots of power once foiling, we do not need wide (and so draggy) boats ONCE FOILING, but we need a boat that can create RM when needed, but have low form drag when flying - We need wings!
5, Small, not very wide boat, but with wings to create RM when needed = MOTH!
Makes sense to me. However, if the Moth class allowed foils in the wings, the Moth would become more stable and, as a consequence, faster in a wider range of conditions.
From that point the boat would evolve into a trimaran.
Conclusion: cats may not be the ideal foiling platform, but this does not mean that monohulls like the Moth are "the" thing. Trimarans look like a better choice nowadays.
