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  #1   Report Post  
Gerard Weatherby
 
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Default Never run downwind?

There's an article on sailnet (
http://www.sailnet.com/collections/a...2%20%20&tfr=fp
or http://tinyurl.com/h9z6 ) which claims it's faster to tack downwind on broad
reaches instead of running straight downwind. (Assuming you want to get dead
downwind.) Have those of you who sail found this to be true? Let's assume
there's no spinnaker since I don't have one.

S/V Cat's Meow
http://www.catsmeow.org
  #2   Report Post  
Simple Simon
 
Posts: n/a
Default Never run downwind?

That is incorrect information for any displacement monohull where
it is always faster to run straight downwind. It only applies to
multi-hulls and planning hulls that can, using a strong wind, move
faster than their theoretical hull speed.


"Gerard Weatherby" wrote in message ...
There's an article on sailnet (
http://www.sailnet.com/collections/a...2%20%20&tfr=fp
or http://tinyurl.com/h9z6 ) which claims it's faster to tack downwind on broad
reaches instead of running straight downwind. (Assuming you want to get dead
downwind.) Have those of you who sail found this to be true? Let's assume
there's no spinnaker since I don't have one.

S/V Cat's Meow
http://www.catsmeow.org



  #3   Report Post  
Jeff Morris
 
Posts: n/a
Default Never run downwind?

nonsense, as usual.

The San Juan may plane, but I doubt it does in 6 knots of wind:
http://www.sanjuan28.org/polar.htm

Here's a different article:
http://www.sailnet.com/collections/a...eid=leonar0021

"Simple Simon" wrote in message
...
That is incorrect information for any displacement monohull where
it is always faster to run straight downwind. It only applies to
multi-hulls and planning hulls that can, using a strong wind, move
faster than their theoretical hull speed.


"Gerard Weatherby" wrote in message

...
There's an article on sailnet (

http://www.sailnet.com/collections/a...2%20%20&tfr=fp
or http://tinyurl.com/h9z6 ) which claims it's faster to tack downwind on broad
reaches instead of running straight downwind. (Assuming you want to get dead
downwind.) Have those of you who sail found this to be true? Let's assume
there's no spinnaker since I don't have one.

S/V Cat's Meow
http://www.catsmeow.org





  #4   Report Post  
Capt. Mooron
 
Posts: n/a
Default Never run downwind?

It certainly is faster... but it's not always quicker.


CM

"Gerard Weatherby" wrote in message
...
| There's an article on sailnet (
|
http://www.sailnet.com/collections/a...2%20%20&tfr=fp
| or http://tinyurl.com/h9z6 ) which claims it's faster to tack downwind on
broad
| reaches instead of running straight downwind. (Assuming you want to get
dead
| downwind.) Have those of you who sail found this to be true? Let's
assume
| there's no spinnaker since I don't have one.
|
| S/V Cat's Meow
|
http://www.catsmeow.org


  #5   Report Post  
The_navigator©
 
Posts: n/a
Default Never run downwind?

'Always' has such a sense of finality to it doncha think?

Cheers MC

Capt. Mooron wrote:
It certainly is faster... but it's not always quicker.


CM

"Gerard Weatherby" wrote in message
...
| There's an article on sailnet (
|
http://www.sailnet.com/collections/a...2%20%20&tfr=fp
| or http://tinyurl.com/h9z6 ) which claims it's faster to tack downwind on
broad
| reaches instead of running straight downwind. (Assuming you want to get
dead
| downwind.) Have those of you who sail found this to be true? Let's
assume
| there's no spinnaker since I don't have one.
|
| S/V Cat's Meow
|
http://www.catsmeow.org





  #6   Report Post  
Capt. Mooron
 
Posts: n/a
Default Never run downwind?

Yes....

CM

"The_navigator©" wrote in message
...
| 'Always' has such a sense of finality to it doncha think?
|
| Cheers MC
|
| Capt. Mooron wrote:
| It certainly is faster... but it's not always quicker.
|
|
| CM
|
| "Gerard Weatherby" wrote in message
| ...
| | There's an article on sailnet (
| |
|
http://www.sailnet.com/collections/a...2%20%20&tfr=fp
| | or http://tinyurl.com/h9z6 ) which claims it's faster to tack downwind
on
| broad
| | reaches instead of running straight downwind. (Assuming you want to
get
| dead
| | downwind.) Have those of you who sail found this to be true? Let's
| assume
| | there's no spinnaker since I don't have one.
| |
| | S/V Cat's Meow
| |
http://www.catsmeow.org
|
|
|


  #7   Report Post  
Jeff Morris
 
Posts: n/a
Default Never run downwind?

Most polar diagrams will indicate the optimum downwind angle for a given wind speed. In
the case of my old Nonsuch, 180 is always the optimum angle, but for many other boats,
tacking downwind works. especially in lighter air.



"Gerard Weatherby" wrote in message
...
There's an article on sailnet (
http://www.sailnet.com/collections/a...2%20%20&tfr=fp
or http://tinyurl.com/h9z6 ) which claims it's faster to tack downwind on broad
reaches instead of running straight downwind. (Assuming you want to get dead
downwind.) Have those of you who sail found this to be true? Let's assume
there's no spinnaker since I don't have one.

S/V Cat's Meow
http://www.catsmeow.org



  #8   Report Post  
John Cairns
 
Posts: n/a
Default Never run downwind?

Can you say "death roll". We got caught running briefly last Saturday, and
stared to intiate said action. Very uncomfortable, I can assure you.

Finally, a run is dangerous. Those rolls can cause the boom to swing across
and smash your crew's heads. A single quick roll can cascade into a series
of ever deeper dips, alternately to windward and leeward, ending with a wild
broach either to windward or to leeward. This series of events is so
catastrophic that it's called a death roll.

John Cairns
Gerard Weatherby wrote in message
...
There's an article on sailnet (

http://www.sailnet.com/collections/a...d=rousma0082%2
0%20&tfr=fp
or http://tinyurl.com/h9z6 ) which claims it's faster to tack downwind on

broad
reaches instead of running straight downwind. (Assuming you want to get

dead
downwind.) Have those of you who sail found this to be true? Let's

assume
there's no spinnaker since I don't have one.

S/V Cat's Meow
http://www.catsmeow.org



  #9   Report Post  
Capt. Mooron
 
Posts: n/a
Default Never run downwind?

Odd.... I've rarely seen a wave train oriented differently than the wind
direction. The "Death Roll" is more common on fin keelers than full keelers.
I have never experienced a death roll scenario on my boat. I have on other
boats. If you have to quarter the wave train dead down wind.... adjust your
set or course to keep the vessel on a heel.


CM

"John Cairns" wrote in message
...
| Can you say "death roll". We got caught running briefly last Saturday, and
| stared to intiate said action. Very uncomfortable, I can assure you.
|
| Finally, a run is dangerous. Those rolls can cause the boom to swing
across
| and smash your crew's heads. A single quick roll can cascade into a
series
| of ever deeper dips, alternately to windward and leeward, ending with a
wild
| broach either to windward or to leeward. This series of events is so
| catastrophic that it's called a death roll.
|
| John Cairns
| Gerard Weatherby wrote in message
| ...
| There's an article on sailnet (
|
|
http://www.sailnet.com/collections/a...d=rousma0082%2
| 0%20&tfr=fp
| or http://tinyurl.com/h9z6 ) which claims it's faster to tack downwind
on
| broad
| reaches instead of running straight downwind. (Assuming you want to get
| dead
| downwind.) Have those of you who sail found this to be true? Let's
| assume
| there's no spinnaker since I don't have one.
|
| S/V Cat's Meow
|
http://www.catsmeow.org
|
|


  #10   Report Post  
The_navigator©
 
Posts: n/a
Default Never run downwind?

Over proof that the wind shifts with depression while the sea state lags
behind or reflects a distant 'stalled' system?

Cheers MC

Capt. Mooron wrote:
Odd.... I've rarely seen a wave train oriented differently than the wind
direction.




 
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