Re: Larger Seabrights
- After "proving" the Atkin Tunnel-Stern designs (two successful
vessels, by master craftsmen, provide a start, but...) perhaps the
next frontier will be scalability.
I have frequently read that you can scale a design by about 10%, maybe
a bit more if you simply stretch out the stations. (This works out to
displacement of about 75% to 133% of the original) Beyond this
supposedly creates a new design, but I am fuzzy as to "why" this is
There are no designers working with this hull form, (Gerr has used
elements to improve the efficiency of his big "trawlers" but that is
another discussion!) so perhaps it is up to us amateurs to do some
I like the idea of a mini-version (though 12'/7hp sounds way
overpowered - figure 25% of RM's displacement!). And, as previously
noted, I am interested in a zero-draft, super-durable, day-cruising
utility for 6-8 or more passengers.
But the hydrodynamics (another field in which I have nothing to
contribute!) of this design are daunting; even if it were possible to
get the attention of a qualified engineer, all the calculations in the
world won't take the place of a bit of inspiration, and a dozen
Rob Rohde-Szudy wrote:
>hardest on a SMALLER version of Rescue Minor. Like 12 feet and 7 hp or
> Robb was definitely interested in Little Water. But he was working
so. Sort of like a tunnel version of his Sport Boat. Sure with he'd
lived to finish that one.
> As for larger seabrights, yeah, Little Water looks great. So doNanuk III and one of my favorites in Spermaciti. But these all draw
quite a bit more water, so you don't get to do some of the things that
Rescue Minor can do. Something to be aware of.