I've been looking at different boat sets, like Sailing Ships and FISH, but i haven't seen any sets with boats newer than 1975, and only a couple of low capacity hydrofoil/hoover passenger boats with speed over 40MPH. This makes boats mostly unable to compete with trains and planes under any circumstance past 1950-60, unless you use economy and base cost regulations. And still the boats aren't that interresting.
I've been looking into boats for a little while, and came across something interresting, although they don't exist as commercial vessels AFAIK, and may be only pseudo-realistic (a lot of the physics seem sound without having an engineering degree), but i think it may be a fun concept to make a boat set of.http://www.hydrolance.net/
Basically it takes hydrofoil/catamaran one step further and aims for a hull design optimized for high speed (60MPH+) ocean travel rather than efficient dock space use. In a nutshell it's a catamaran only with the middle being raised well above the water to give clearing in high waves, and the leggs being a lot slimmer and longer to reduce plowing effect and keep the structure planar by being longer than wave span. This design also seems to give really efficient hydroplaning at high speeds, similar to long water skis.
Boats in the set could also include both historic catamarans as well as experimental and futuristic designs based on "hydrolance". I don't know if we'd need permission from them to make the set...
Would anyone be interrested in such a boat set, and/or want to make/work on it?