Answer A: There is no one boat that is best for both offshore
work and extended live-aboard.
Ok, how about those Wharram
cats that are mostly suited for voyaging and living aboard
? Also your Answer B. Also your Answer C, the Catana's are a great design line.
So, what is the perfect catamaran
? Ask Larry Ellison. Fly into port. Your crews have the boat ready. Go aboard. Sail like a banshee, your rock star crews working like mad, thousands of spectators taking pictures as well as HD television coverage from helicopters. You go ashore and are whisked away in a helicopter to an exclusive party. You're kind of bored because your next boat, a 72 foot monster that goes even faster, is just getting the bugs worked out. Hydrofoils. It's a 72 foot iceboat. No downwind sails
. All apparent wind
. It's going to take a few capsizes at 45 knots to work out the bugs.
It will be a while before some of the benefits of the cutting edge technology work their way down to cruising boats, but they do work there way down. Not everything is applicable to a cruising boat, but some of the materials technology and design experiments produce improvements that work their way into boats we can have.
My boat is derived from a design from around 1959 and others of its type are still being built. It's certainly a compromise design, no attempt at cutting edge. It sails
well. It's a great boat for a singlehander to brave the seas. It's got a big deck
area to have a party in port. I couldn't have more than about 4 people on a cruise
without some crowding down below in what someone called "German Submarines". But I can daysail it without problem and keep up or pass other boats, especially since I never sail to windward.