[PCW] Sailability of powercat hulls - was Hybrid Powercats

[Noelle Harrott]

It would seem that the varying requirements of hull shapes for optimum 
sailing or powering could be adressed by a trimaran motorsailer with 
variable position sponsons. Have there been any design attempts along this 
line of thought?

                               Curious, Bert
----- Original Message ----- 
From: "Mark" <mark424x at yahoo.com>
To: "Power Catamaran List" <power-catamaran at lists.samurai.com>
Sent: Wednesday, December 19, 2007 8:02 AM
Subject: Re: [PCW] Sailability of powercat hulls - was Hybrid Powercats


> --- On Mon, 12/17/07, Malcolm Tennant <malcolm at tennantdesign.co.nz> wrote:
>> However I might deviate slightly from that contention and
>> fit a rig to one of
>> our CS power cat designs. The only real advantages of this
>> would occur if you
>> wanted to go a bit faster  than the sail boat hull was
>> capable of.
> ----------------------
>
> Malcolm, Pat, et al
>
> I wonder if you could comment on the sailing ability of a power cat hull 
> (e.g. CS hull form).  There has been much discussion of squatting of a 
> traditional sailing hull that limits powering speed.
>
> A designer/builder of both power and sail cruising cats once told me that 
> since the force generated by the sails is so far above the water line that 
> sailing hulls needed much more buoyancy forward - and as the force applied 
> by props was along such a different line, that the a motorsailor would 
> always involve a heavy compromise in sailing/powering or both due to the 
> requirements of different hull shapes for sail v power.
>
> Thanks -- Mark
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