[MHml] DynaRig, Mast-Aft, Bi-Plane sailing rigs

[Dave Culp]

So it seems that we can cure maintenance problems if enough money is
spent at time of construction--that's a data point, but I remain
unsure it's a benefit.

Brian, I can understand your bristling at Rob's comments. However, you
repeatedly (seem to) contend that, since a biplane rig is *not*
suitable for cruising, that a square rig somehow *is*. Wouldn't it be
more realistic to compare the dynarig with more conventional rigs when
making positive assertions about them?

I'm sorry to be a curmudgeon about it, but glowing newspaper stories
(we know how accurate *those* are!), and internet-based opinion forums
by amateur (and professional) designers without direct expertise in
the field are just not very compelling for me. Now, if Jerry Dykesjtra
(sp?) or Knud Hansen came aboard and offered their take on the issue,
I'd be more than impressed.

Has anyone here read Priebe's "Modern Commercial Sailing Ship
Fundamentals"? I have a copy, can attest it's a great book on the
subject:  http://www.amazon.com/Modern-Commercial-Sailing-Ship-Fundamentals/dp/0870333402

Dave

On 5/25/07, brian eiland <beiland at usa.net> wrote:
> Brian noted: BTW that was a full atlantic crossing at speed and no problems
> with the rig
>
> May 9, 2007
> A FAST PASSAGE FOR THE FALCON
>
> The Falcon arrived Back in La Spezia after a fast, 15 day, passage from St
> Martin. The wind was complicated by a lingering low near the usual Azores
> high, and daily updates were used from Met-France, which we found to be
> extremely accurate. We also used the SeaTech route planning software, which
> incorporates the yacht's polar curves, into the projected weather, plotting
> the best route to follow in sailing. This program was very useful and
> impressive.
>
> The weather ranged from dead flat calm, through which we motored at around 13
> knots, to two periods of strong winds in the Atlantic of force seven and
> eight, through which we sailed at 18 to 20 knots. As we had good favorable
> wind through Gibraltar, we didn't stop, and sailed directly to Italy,
> encountering a force nine and ten gale in the Golfe du Lion. In the past
> twenty years I have never been in this part of the Med without encountering
> such a mistral. With only our lower tops set, we never-the-less held our
> sailing speed to 17--18 knots---faster speeds are, of course, possible but
> it's uncomfortable in the short period waves for which the region is
> notorious.
>
> And so, in less than a year from our departure from Istanbul, and with 21
> thousand nautical miles under our belts, we are back for a couple of weeks in
> the yard before we begin our Summer season in the Med. I am happy to report
> that the DynaRig (FalconRig) has performed flawlessly, and no servicing of its
> sails or systems is on our work list.
>
>
> In the recent passage, Christian only went aloft once to check a
> connection---there were no actual problems.
>
>
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