Good points.
But what if the wind picks up to 60 or 80 knots and you need to
shunt in order to claw off a lee shore, put out drogues, or ride the
gale out on the hooK? If your wing is big enough for five knots of
wind, what will happen when things get gnarly?
Not unsolvable, of course. Just unknown to me.
- Mike
tsstproa wrote:
My solid elliptical wing doesn't compare to the square or dyna rig both have fabric which needs high stress or heavy booms to maintain the most stable draft possible. Which AS FAR AS STABILITY goes doesn't come close compare to my solid wing design.
I'm not saying that while anchored or moored it wouldn't be a challenge. You just brought that up. You said when changing directions in shunt your concern, the wind hitting the sail square on. Its stalled and boat is positioned for a down wind run there is hardly any force at all. Rolling the sail to new tack on a solid wing with a stable draft the draft is at your command following the curve of the sail as you sheet at will, evenly producing power as needed while maneuvering boat to head to new tack. Its a choreographed dance timing between sail and hull is everything. Like a high speed gybe it can be slammed around or very smooth with very little deflection of forces. Pinching up hard to an almost stall and then falling off hard for a down wind run with your kite and three wheeler you will experience the delay effect similar to a shunt.
My designed solid wing draft stability should over no differences in ease of handling at high speed sailing or low wind performance. Precise control gets you the performance in a wider range.
Todd
--- In harryproa@yahoogroups.com.au, Mike Crawford <mcrawf@...> wrote:
>
> Todd,
>
> <<Well with all that kite experience you of all people should now where
> I'm coming from but apparently not. Buggies roll on bearings Kite
> surfing you push through water big difference In power needed and
> control well maybe not control but definitely power required on average.>>
>
> You're right about buggies needing more control. The consequences of
> a gust in a buggy, over hard sand, traveling on bearings, are definitely
> more pronounced than a gust when in the water on a kiteboard.
>
> What I don't get is how this compares to the cambered square/dynarig.
> I don't see the separate power and control lines, nor how to adjust the
> trailing edge so that the wing tends itself in a high wind.
>
> I may need to be shown with the actual experience you talk about
> elsewhere, how the sail can go to neutral in a blow and stay that way as
> the wind changes speed and direction. Full-size would be great, but a
> model might help illustrate.
>
> Btw, your discussion of control does hint at an interesting difference
> in our thinking: since my focus is on how to maximize low-wind
> performance, without high-wind performance requiring constant attention,
> I likely value different rig capabilities than you do.
> I just want to be king
> of the zephyr, without having to worry about things when the wind really
> picks up and I'm alone in the middle of nowhere.
>
> - Mike
>
>
>