On Oct 24, 8:15 pm, Joe wrote:
On Oct 24, 6:25 pm, "Roger Long" wrote:
That sounds cool although I would worry about chafe in a long storm. If the
bridal was short enough to make moving the drogue from bow to stern, it
would greatly magnify the force on that line. Being broadside, even for a
short time, while held against the waves could be a little terrifying.
You could use what is called a sliding line cargo block on as slack a
bridal as you choose. It a block that takes a load but has a loop on
top to pull the load back and forth along the line, you often see them
used in underway replenishments. The chaffe would be no more than any
drouge/ sea anchor. A agree you would want to turn fast and not be
caught broadside.
P.S.
Here is the type of block I was thinking about
:
http://www.liftingandmarine.com/imag...ting_gear2.gif
As you can see it will take a load, and has a ring on top to attach
lines to move the load on the line.
Joe
Question: If you have an engine running would you deploy a drouge at
all?
I think danger to leeward is either an issue or it isn't.
Thats like looking in a rear view mirror, I worry about the one's
coming at me. The only time I would be concerned about leeward calming
effect is if you are recovering something or someone, makes no
difference to how the boats going to act when hit from winward
If it is, you are
going to heave to bow into it and worsening conditions are not going to lead
you to start running off unless you think surfing up on a beach is a good
alternative (which it actually has turned out to be for a few vessels). If
you have the sea room, why not just run off to begin with and avoid having
to do any fordeck work like tending chafing gear or backed sails. Dealing
with chafing gear over the stern from the cockpit will be a whole lot easier
on most boats than going forward.
Guess it all depends on whats down wind as to bow or stern IMO. If you
have all the room to run with a storm then thats the way to go, a
small drouge just keeps your stern behind you...If you are dead in the
water with a leeshore then off the bow to slow all movement is best.
Like one powerboater here said, jogging into it the way to go if you
have an engine and the fuel.
I think I would opt for a fairly conventional small sea anchor as an aid to
a backed jib, perhaps with a line to the stern Pardey style.
Pardey's style is to the quarter bit IIRC and stern on a bridal
correct?
This would be
my tactic for conditions just above too rough to continue sailing in up
until there was any significant danger of being rolled. Most boats will be
dryer below and more comfortable with the bow into the wind as companionways
tend to be more watertight with wind from that direction. Presumably, in
these conditions, you have a reason not to be making progress downwind or
you would probably be just headed that way under bare poles or small jib.
Once the waves became a significant worry, I would ready the series drogue
and probably just cut the sea anchor loose since retrieving it at that point
would be problematic.
I think you are on to something with your two half size para idea (half
area; not diameter I presume you mean). That should even things out a lot.
If drogues were something where the performance could be measured and
compared the way racing sails can; I'm sure the series drogue would come out
on top. The first 90% of performance in things like this usually comes
pretty easily though and subsequent improvements become hard to quantify. I
strongly suspect that three to six conventional small cone type sea anchors
spliced into a long line would work nearly as well as the series drogue.
You could run the main line through the hole in the bottom of each cone.
Thats sorta what I have, after the para 12 ft there is a 4 fter cone I
took off a 35 man liferaft ...I figure one's going to be in the water
at all times.
It would be easy to rig and leave a bridal from the bow to the stern
and be prepared to launch from either end.
Better yet use weather routing, and have a well running main engine
and dependable fuel system to keep you out of drogue conditions.
Joe
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