Topics

supplemental downwind sailing configuration for Super Maramu


James Cromie
 

Hello Super Maramu owners - 
I would like to take a poll of the group regarding preferred downwind sailing configurations:  those who use asymmetrical spinnakers versus the twin headsails, versus some other option such as a Parasailor.  
How does the performance of the these compare for light and moderate wind? 
A parasail is probably out of my price range, but what are the opinions of those who use it? 

Does anyone use a spinnaker on a top-down furler rather than with a sock?   

For an asymmetric spinnaker, I see the standard size is 115m^2.  Is this the size used by others on the forum? 

I would like to have a back up for the twin headsails in case of a sail or system failure.  
The most economical option is to have a spare ballooner.  However, a top-down furling spinnaker seems like an attractive and convenient option for short-hand deployment and dousing (particularly when sailing for many days at a time).

Many thanks,
James


Paul Osterberg
 

I have thought of buying a Code Zero or general purpose genacker on a furler, Not to substitute the Baloner concept, which I think is superior down wind system for a smal crew, we run the twin head sail i.e. balooner for about a week on our Atlantic crossing east to west. We were lucky only a few squalls, but easy for one person to furl the twin head sail and unfurl when the squall is gone.  We think it is possible to run the twin head sail about +/-25 degree of dead down wind. But when light apparent wind from 90 to 145 degree I think a Code Zero on a furler would be an option, I would prefer to have it on a bow sprit to get it forward of the pulpit and a bit larger, but it will be a solution making big holes in my pocket. During This season, it is only on our voyage between Bahamas and Bermuda we missed such sail, but as we plan to go to the Pacific I think we might have more us of it there.
Paul on SY Kerpa AM#259 Bermuda
 


Gerald Bassin
 

Hi Paul
I have a code D from Delta voiles on a removable bow sprit.and a set of blocks on above the genoa halyard block. Took us a lot of trial and error to get it working, but now it’s okay. The code D is 130m2. If you look at Jetlag on Marine traffic.com there is a pic of our sail. At 15 kts true wind we bring it down as the genoa is ok by then
Rgrds
Gerald 
Jetlag #113


On 28 May 2019, at 22:40, Paul Osterberg <osterberg.paul.l@...> wrote:

I have thought of buying a Code Zero or general purpose genacker on a furler, Not to substitute the Baloner concept, which I think is superior down wind system for a smal crew, we run the twin head sail i.e. balooner for about a week on our Atlantic crossing east to west. We were lucky only a few squalls, but easy for one person to furl the twin head sail and unfurl when the squall is gone.  We think it is possible to run the twin head sail about +/-25 degree of dead down wind. But when light apparent wind from 90 to 145 degree I think a Code Zero on a furler would be an option, I would prefer to have it on a bow sprit to get it forward of the pulpit and a bit larger, but it will be a solution making big holes in my pocket. During This season, it is only on our voyage between Bahamas and Bermuda we missed such sail, but as we plan to go to the Pacific I think we might have more us of it there.
Paul on SY Kerpa AM#259 Bermuda
 


Paul Osterberg
 

Gerald looks great
Do you have any pictures on the bow sprit? Who made it? We also want a detachable, else one has to pay for it each time hauling out.
When the code D is furled how much space does it take? is it easy to find storage for it? 
assume you diesel consumption reduced since you got it?
Paul on SY Kerpa SM#259


Gerald Bassin
 

Hi Paul

Here a few pics.
The bow sprit is a standard Selden product.

The "horse shoe" front attachement was custom made in Antigua after the Selden bolts of the original attachement broke during the Atlantic crossing (of course withe the sail up! but I confirm, the pullpit is solid and averted more damage).The Selden design does not allow for a lot of side forces I think.

The tail end box was also custom made in France to get the proper angle. It's basically a stainlesssteel box.

We have a port and a starbord halyard in order to clear the genoa top swivel. Huge chaffing problems before we arrived at that solution.

It is still possible to open the stbd lazarette and if we disconnect the aft end of the bow sprit, the acces to the cleat is granted.

The whole thing slides back out quite easily ro reduce LOA!!

The code D is attached to an anti torsion forestay so when it's rolled you have a kind of Anaconda which you can store in a 5-6ft sail bag.

Unfortunately during our last 4 season in the Caribbean (Dec-May), the wind was often to strong or from the wrong direction to use it...

Here also a link:
https://www.youtube.com/watch?v=f7nPSdkYP98

Feel free to ask more questions !

Rgrds

Gerald

On 29/05/2019 14:04, Paul Osterberg wrote:
Gerald looks great
Do you have any pictures on the bow sprit? Who made it? We also want a
detachable, else one has to pay for it each time hauling out.
When the code D is furled how much space does it take? is it easy to
find storage for it?
assume you diesel consumption reduced since you got it?
Paul on SY Kerpa SM#259
Links:
------
[1] https://AmelYachtOwners.groups.io/g/main/message/45978
[2] https://groups.io/mt/31824213/1768002
[3] https://AmelYachtOwners.groups.io/g/main/post
[4] https://AmelYachtOwners.groups.io/g/main/editsub/1768002
[5] https://AmelYachtOwners.groups.io/g/main/leave/defanged


Paul Osterberg
 

Thank you Gerard
I think by substituting the Selden aluminium tube with a SS one, strength in all direction will be improved.
How long does it protrude from the bow fittings? I discussed this with Selden and they recommend a water stay.
It involve  lot of money the whole thing, Furler, halyards, down haul, sheets, sail and bowsprit, I guess close to 10 000 Euoro, was it worth it? would you do it again?
Paul 


James Cromie
 

Thanks for the info. on your rig Gerald. Do you believe that the top-down furler could be attached to the anchor point just above the anchor in the pulpit and avoid using a bow sprit? If you did this, I imagine you might need to elevate the furler mechanism with a 2:1 adjustable downhaul so that it could be raised to allow adequate clearance from the gearbox housing.

Thanks,
James

On May 29, 2019, at 10:41 AM, Gerald Bassin <gerald.bassin@...> wrote:

Hi Paul

Here a few pics.
The bow sprit is a standard Selden product.

The "horse shoe" front attachement was custom made in Antigua after the Selden bolts of the original attachement broke during the Atlantic crossing (of course withe the sail up! but I confirm, the pullpit is solid and averted more damage).The Selden design does not allow for a lot of side forces I think.

The tail end box was also custom made in France to get the proper angle. It's basically a stainlesssteel box.

We have a port and a starbord halyard in order to clear the genoa top swivel. Huge chaffing problems before we arrived at that solution.

It is still possible to open the stbd lazarette and if we disconnect the aft end of the bow sprit, the acces to the cleat is granted.

The whole thing slides back out quite easily ro reduce LOA!!

The code D is attached to an anti torsion forestay so when it's rolled you have a kind of Anaconda which you can store in a 5-6ft sail bag.

Unfortunately during our last 4 season in the Caribbean (Dec-May), the wind was often to strong or from the wrong direction to use it...

Here also a link:
https://www.youtube.com/watch?v=f7nPSdkYP98

Feel free to ask more questions !

Rgrds

Gerald



On 29/05/2019 14:04, Paul Osterberg wrote:
Gerald looks great
Do you have any pictures on the bow sprit? Who made it? We also want a
detachable, else one has to pay for it each time hauling out.
When the code D is furled how much space does it take? is it easy to
find storage for it?
assume you diesel consumption reduced since you got it?
Paul on SY Kerpa SM#259
Links:
------
[1] https://AmelYachtOwners.groups.io/g/main/message/45978
[2] https://groups.io/mt/31824213/1768002
[3] https://AmelYachtOwners.groups.io/g/main/post
[4] https://AmelYachtOwners.groups.io/g/main/editsub/1768002
[5] https://AmelYachtOwners.groups.io/g/main/leave/defanged


<P1030995.JPG><IMG_0150.JPG><IMG_0179.JPG><IMG_0180.JPG><IMG_0181.JPG>


James Cromie
 

Does anyone else on the forum use a top-down furling system for flying an asymmetric spinnaker or other down-wind sail?

I’d like to know if the systems can work well without adding a bow sprit.

Thank you all.

James
Soteria SM2K 347

On May 29, 2019, at 10:41 AM, Gerald Bassin <gerald.bassin@...> wrote:

Hi Paul

Here a few pics.
The bow sprit is a standard Selden product.

The "horse shoe" front attachement was custom made in Antigua after the Selden bolts of the original attachement broke during the Atlantic crossing (of course withe the sail up! but I confirm, the pullpit is solid and averted more damage).The Selden design does not allow for a lot of side forces I think.

The tail end box was also custom made in France to get the proper angle. It's basically a stainlesssteel box.

We have a port and a starbord halyard in order to clear the genoa top swivel. Huge chaffing problems before we arrived at that solution.

It is still possible to open the stbd lazarette and if we disconnect the aft end of the bow sprit, the acces to the cleat is granted.

The whole thing slides back out quite easily ro reduce LOA!!

The code D is attached to an anti torsion forestay so when it's rolled you have a kind of Anaconda which you can store in a 5-6ft sail bag.

Unfortunately during our last 4 season in the Caribbean (Dec-May), the wind was often to strong or from the wrong direction to use it...

Here also a link:
https://www.youtube.com/watch?v=f7nPSdkYP98

Feel free to ask more questions !

Rgrds

Gerald



On 29/05/2019 14:04, Paul Osterberg wrote:
Gerald looks great
Do you have any pictures on the bow sprit? Who made it? We also want a
detachable, else one has to pay for it each time hauling out.
When the code D is furled how much space does it take? is it easy to
find storage for it?
assume you diesel consumption reduced since you got it?
Paul on SY Kerpa SM#259
Links:
------
[1] https://AmelYachtOwners.groups.io/g/main/message/45978
[2] https://groups.io/mt/31824213/1768002
[3] https://AmelYachtOwners.groups.io/g/main/post
[4] https://AmelYachtOwners.groups.io/g/main/editsub/1768002
[5] https://AmelYachtOwners.groups.io/g/main/leave/defanged


<P1030995.JPG><IMG_0150.JPG><IMG_0179.JPG><IMG_0180.JPG><IMG_0181.JPG>


Gerald Bassin
 

Quite right James
The issue here, is to get clear of the genoa forestay,motor and top swivel.
Then you have the pulpit to worry about with your downhaul...

and for Paul's question: would I do it again...?
well in the Med I used that sail quite a lot... not so in the Caribbean eventhough on the lee side of some island with light winds we just keep moving...

So I'm not quite sure as we had lots of problems before we got a working system...


Just have to pay attention when getting close to the channels and furl the anaconda in due time...

Rgrds to all

G
....
So why not use the ballooner without forestay then?

On 29/05/2019 17:21, James Cromie via Groups.Io wrote:
Thanks for the info. on your rig Gerald. Do you believe that the
top-down furler could be attached to the anchor point just above the
anchor in the pulpit and avoid using a bow sprit? If you did this, I
imagine you might need to elevate the furler mechanism with a 2:1
adjustable downhaul so that it could be raised to allow adequate
clearance from the gearbox housing.
Thanks,
James
On May 29, 2019, at 10:41 AM, Gerald Bassin <gerald.bassin@...> wrote:
Hi Paul
Here a few pics.
The bow sprit is a standard Selden product.
The "horse shoe" front attachement was custom made in Antigua after the Selden bolts of the original attachement broke during the Atlantic crossing (of course withe the sail up! but I confirm, the pullpit is solid and averted more damage).The Selden design does not allow for a lot of side forces I think.
The tail end box was also custom made in France to get the proper angle. It's basically a stainlesssteel box.
We have a port and a starbord halyard in order to clear the genoa top swivel. Huge chaffing problems before we arrived at that solution.
It is still possible to open the stbd lazarette and if we disconnect the aft end of the bow sprit, the acces to the cleat is granted.
The whole thing slides back out quite easily ro reduce LOA!!
The code D is attached to an anti torsion forestay so when it's rolled you have a kind of Anaconda which you can store in a 5-6ft sail bag.
Unfortunately during our last 4 season in the Caribbean (Dec-May), the wind was often to strong or from the wrong direction to use it...
Here also a link:
https://www.youtube.com/watch?v=f7nPSdkYP98
Feel free to ask more questions !
Rgrds
Gerald
On 29/05/2019 14:04, Paul Osterberg wrote:
Gerald looks great
Do you have any pictures on the bow sprit? Who made it? We also want a
detachable, else one has to pay for it each time hauling out.
When the code D is furled how much space does it take? is it easy to
find storage for it?
assume you diesel consumption reduced since you got it?
Paul on SY Kerpa SM#259
Links:
------
[1] https://AmelYachtOwners.groups.io/g/main/message/45978
[2] https://groups.io/mt/31824213/1768002
[3] https://AmelYachtOwners.groups.io/g/main/post
[4] https://AmelYachtOwners.groups.io/g/main/editsub/1768002
[5] https://AmelYachtOwners.groups.io/g/main/leave/defanged
<P1030995.JPG><IMG_0150.JPG><IMG_0179.JPG><IMG_0180.JPG><IMG_0181.JPG>


James Cromie
 

Thanks Gerald.
I certainly could fly the ballooner free, but I’m looking for a larger surface area sail that will give greater range of AWA, as well as having a back up sail to the ballooner I have in case that were to blow apart…
I will likely have the sail made such that the foot of the sail is elevated off of the deck in order to clear the pulpit.

Alternatively, I could use a sock and rig the clew outboard of the pulpit, but I suspect I will end up not using it as much in that case.
A furler would allow me to quickly reel in the sail if the weather changes, as well as take it in at night and deploy in the morning.

-James

On May 29, 2019, at 12:44 PM, Gerald Bassin <gerald.bassin@...> wrote:

Quite right James
The issue here, is to get clear of the genoa forestay,motor and top swivel.
Then you have the pulpit to worry about with your downhaul...

and for Paul's question: would I do it again...?
well in the Med I used that sail quite a lot... not so in the Caribbean eventhough on the lee side of some island with light winds we just keep moving...

So I'm not quite sure as we had lots of problems before we got a working system...


Just have to pay attention when getting close to the channels and furl the anaconda in due time...

Rgrds to all

G
....
So why not use the ballooner without forestay then?


On 29/05/2019 17:21, James Cromie via Groups.Io wrote:
Thanks for the info. on your rig Gerald. Do you believe that the
top-down furler could be attached to the anchor point just above the
anchor in the pulpit and avoid using a bow sprit? If you did this, I
imagine you might need to elevate the furler mechanism with a 2:1
adjustable downhaul so that it could be raised to allow adequate
clearance from the gearbox housing.
Thanks,
James
On May 29, 2019, at 10:41 AM, Gerald Bassin <gerald.bassin@...> wrote:
Hi Paul
Here a few pics.
The bow sprit is a standard Selden product.
The "horse shoe" front attachement was custom made in Antigua after the Selden bolts of the original attachement broke during the Atlantic crossing (of course withe the sail up! but I confirm, the pullpit is solid and averted more damage).The Selden design does not allow for a lot of side forces I think.
The tail end box was also custom made in France to get the proper angle. It's basically a stainlesssteel box.
We have a port and a starbord halyard in order to clear the genoa top swivel. Huge chaffing problems before we arrived at that solution.
It is still possible to open the stbd lazarette and if we disconnect the aft end of the bow sprit, the acces to the cleat is granted.
The whole thing slides back out quite easily ro reduce LOA!!
The code D is attached to an anti torsion forestay so when it's rolled you have a kind of Anaconda which you can store in a 5-6ft sail bag.
Unfortunately during our last 4 season in the Caribbean (Dec-May), the wind was often to strong or from the wrong direction to use it...
Here also a link:
https://www.youtube.com/watch?v=f7nPSdkYP98
Feel free to ask more questions !
Rgrds
Gerald
On 29/05/2019 14:04, Paul Osterberg wrote:
Gerald looks great
Do you have any pictures on the bow sprit? Who made it? We also want a
detachable, else one has to pay for it each time hauling out.
When the code D is furled how much space does it take? is it easy to
find storage for it?
assume you diesel consumption reduced since you got it?
Paul on SY Kerpa SM#259
Links:
------
[1] https://AmelYachtOwners.groups.io/g/main/message/45978
[2] https://groups.io/mt/31824213/1768002
[3] https://AmelYachtOwners.groups.io/g/main/post
[4] https://AmelYachtOwners.groups.io/g/main/editsub/1768002
[5] https://AmelYachtOwners.groups.io/g/main/leave/defanged
<P1030995.JPG><IMG_0150.JPG><IMG_0179.JPG><IMG_0180.JPG><IMG_0181.JPG>


eric freedman
 

James,
We use an ATN sock to launch and douse the sail. Very quick and simple.
Fair Winds
Eric
Kimberlite Amel Super Maramu #376

-----Original Message-----
From: main@AmelYachtOwners.groups.io [mailto:main@AmelYachtOwners.groups.io] On Behalf Of James Cromie via Groups.Io
Sent: Wednesday, May 29, 2019 2:09 PM
To: main@AmelYachtOwners.groups.io
Subject: Re: [AmelYachtOwners] supplemental downwind sailing configuration for Super Maramu

Thanks Gerald.
I certainly could fly the ballooner free, but I’m looking for a larger surface area sail that will give greater range of AWA, as well as having a back up sail to the ballooner I have in case that were to blow apart…
I will likely have the sail made such that the foot of the sail is elevated off of the deck in order to clear the pulpit.

Alternatively, I could use a sock and rig the clew outboard of the pulpit, but I suspect I will end up not using it as much in that case.
A furler would allow me to quickly reel in the sail if the weather changes, as well as take it in at night and deploy in the morning.

-James
On May 29, 2019, at 12:44 PM, Gerald Bassin <gerald.bassin@...> wrote:

Quite right James
The issue here, is to get clear of the genoa forestay,motor and top swivel.
Then you have the pulpit to worry about with your downhaul...

and for Paul's question: would I do it again...?
well in the Med I used that sail quite a lot... not so in the Caribbean eventhough on the lee side of some island with light winds we just keep moving...

So I'm not quite sure as we had lots of problems before we got a working system...


Just have to pay attention when getting close to the channels and furl the anaconda in due time...

Rgrds to all

G
....
So why not use the ballooner without forestay then?


On 29/05/2019 17:21, James Cromie via Groups.Io wrote:
Thanks for the info. on your rig Gerald. Do you believe that the
top-down furler could be attached to the anchor point just above the
anchor in the pulpit and avoid using a bow sprit? If you did this, I
imagine you might need to elevate the furler mechanism with a 2:1
adjustable downhaul so that it could be raised to allow adequate
clearance from the gearbox housing.
Thanks,
James
On May 29, 2019, at 10:41 AM, Gerald Bassin <gerald.bassin@...> wrote:
Hi Paul
Here a few pics.
The bow sprit is a standard Selden product.
The "horse shoe" front attachement was custom made in Antigua after the Selden bolts of the original attachement broke during the Atlantic crossing (of course withe the sail up! but I confirm, the pullpit is solid and averted more damage).The Selden design does not allow for a lot of side forces I think.
The tail end box was also custom made in France to get the proper angle. It's basically a stainlesssteel box.
We have a port and a starbord halyard in order to clear the genoa top swivel. Huge chaffing problems before we arrived at that solution.
It is still possible to open the stbd lazarette and if we disconnect the aft end of the bow sprit, the acces to the cleat is granted.
The whole thing slides back out quite easily ro reduce LOA!!
The code D is attached to an anti torsion forestay so when it's rolled you have a kind of Anaconda which you can store in a 5-6ft sail bag.
Unfortunately during our last 4 season in the Caribbean (Dec-May), the wind was often to strong or from the wrong direction to use it...
Here also a link:
https://www.youtube.com/watch?v=f7nPSdkYP98
Feel free to ask more questions !
Rgrds
Gerald
On 29/05/2019 14:04, Paul Osterberg wrote:
Gerald looks great
Do you have any pictures on the bow sprit? Who made it? We also want a
detachable, else one has to pay for it each time hauling out.
When the code D is furled how much space does it take? is it easy to
find storage for it?
assume you diesel consumption reduced since you got it?
Paul on SY Kerpa SM#259
Links:
------
[1] https://AmelYachtOwners.groups.io/g/main/message/45978
[2] https://groups.io/mt/31824213/1768002
[3] https://AmelYachtOwners.groups.io/g/main/post
[4] https://AmelYachtOwners.groups.io/g/main/editsub/1768002
[5] https://AmelYachtOwners.groups.io/g/main/leave/defanged
<P1030995.JPG><IMG_0150.JPG><IMG_0179.JPG><IMG_0180.JPG><IMG_0181.JPG>


Joerg Esdorn
 

On my 55, i have a cruising code zero on a Factor 4500 top down furler.   It is not necessary to have a bow sprit for this sail.  It attaches to the anchor fitting.  It’s just enough forward of the genoa that it does not interfere with it but it often touches it.  Top down furlers are temperamental beasts.  It takes some tweaking. You have to have A LOT of halyard tension to furl- otherwise it will not furl properly.  I tighten the halyard with my Harken 46 winch in slow gear - the more I lean on it the better.  You have to have a good system that prevents the furling line from running free.  I have a Selden double cam block which works great.   But still, it’s tricky to make it work.  Yesterday the lazy sheet rapped around the furler.  I had to unfurl and start again.  But it’s worth it to have the sail -  it will get the boat going in swells and create apparent wind - I would get it again only maybe a bit bigger.  


James Cromie
 

Thanks for your input Joerg.  
Do you happen to know how many square meters your cruising code zero is?  
What factors  led you to choose a code zero versus an asymmetrical spinnaker? 

Thanks again, 
James

On Jun 16, 2019, at 7:24 AM, Joerg Esdorn via Groups.Io <jhe1313@...> wrote:

On my 55, i have a cruising code zero on a Factor 4500 top down furler.   It is not necessary to have a bow sprit for this sail.  It attaches to the anchor fitting.  It’s just enough forward of the genoa that it does not interfere with it but it often touches it.  Top down furlers are temperamental beasts.  It takes some tweaking. You have to have A LOT of halyard tension to furl- otherwise it will not furl properly.  I tighten the halyard with my Harken 46 winch in slow gear - the more I lean on it the better.  You have to have a good system that prevents the furling line from running free.  I have a Selden double cam block which works great.   But still, it’s tricky to make it work.  Yesterday the lazy sheet rapped around the furler.  I had to unfurl and start again.  But it’s worth it to have the sail -  it will get the boat going in swells and create apparent wind - I would get it again only maybe a bit bigger.  


Joerg Esdorn
 

James, my Code Zero is 100 m2 and the cloth is relatively light so it be used only up to 14 knots of apparent wind.  I chose the code zero because it is I am able to use it closer to the wind than a standard asym and I have a Parasailor as well for downwind work.  In light air, the apparent wind angle moves forward dramatically when the boat gets going.  So if I want to sail at a true wind angle of 90 because my course over the ground is in that direction, the apparent wind angle could be something like 60 degrees.  I also use the Code 0 in light running conditions because the Parasailor is no good in less than 7 Knots (and because the Code zero is much easier to set up than the Parasailor.  It really depends on how you would use the spinnaker.  I tend to sail rather than motor even in the very light stuff if I can get a sail to draw without banging.  If you always motor in below, say, 8 knots of true wind, just get a AP asym or a parasailor.  The Genoa will be fine in those conditions for reaching.  I hope that helps.   


James Cromie
 

It helps tremendously Joerg.  Sounds like I need both!
-James

On Jun 17, 2019, at 2:37 AM, Joerg Esdorn via Groups.Io <jhe1313@...> wrote:

James, my Code Zero is 100 m2 and the cloth is relatively light so it be used only up to 14 knots of apparent wind.  I chose the code zero because it is I am able to use it closer to the wind than a standard asym and I have a Parasailor as well for downwind work.  In light air, the apparent wind angle moves forward dramatically when the boat gets going.  So if I want to sail at a true wind angle of 90 because my course over the ground is in that direction, the apparent wind angle could be something like 60 degrees.  I also use the Code 0 in light running conditions because the Parasailor is no good in less than 7 Knots (and because the Code zero is much easier to set up than the Parasailor.  It really depends on how you would use the spinnaker.  I tend to sail rather than motor even in the very light stuff if I can get a sail to draw without banging.  If you always motor in below, say, 8 knots of true wind, just get a AP asym or a parasailor.  The Genoa will be fine in those conditions for reaching.  I hope that helps.   


Jose Venegas
 

James,
I have an asymmetric spy on a top-down furling RollGen 20 by Bamar. 
Spy dimensions:
Luff=17.07mtr
Leech=15.4 mtr
Foot=7.9mtr
SMG=7.105mtr

I have enjoyed it for more than 6 years with the main advantage of being able to deploy and furl back with just my wife, something that is a major plus for me.  Also, it takes a lot of turns to furl but we use the electric winch to do it.
It is also important to make sure that the apparent wind is not less than 90 degrees or more than ~150 degrees to furl correctly.
A couple of times we totally lost all wind and furling could be done poorly and had to be redone as soon as we got back some wind. 
Here are a couple of  pix of Ipanema under spy

Jose 
Ipanema SM 2K 278
Boston
 asym.

 


Stephen Davis
 

Hi Jose,

That looks like a great system. How is the fuller attached at the bow, and at the mast? 

Thanks,

Steve Davis
Aloha SM 72
Hawaii

On Jun 17, 2019, at 12:26, Jose Venegas via Groups.Io <josegvenegas@...> wrote:

James,
I have an asymmetric spy on a top-down furling RollGen 20 by Bamar. 
Spy dimensions:
Luff=17.07mtr
Leech=15.4 mtr
Foot=7.9mtr
SMG=7.105mtr

I have enjoyed it for more than 6 years with the main advantage of being able to deploy and furl back with just my wife, something that is a major plus for me.  Also, it takes a lot of turns to furl but we use the electric winch to do it.
It is also important to make sure that the apparent wind is not less than 90 degrees or more than ~150 degrees to furl correctly.
A couple of times we totally lost all wind and furling could be done poorly and had to be redone as soon as we got back some wind. 
Here are a couple of  pix of Ipanema under spy

Jose 
Ipanema SM 2K 278
Boston
 <P1030878.JPG.JPG><IMG_3296.jpg.jpg>asym.

 


Jose Venegas
 

It uses the additional halliard above and the hole in the anchor chain roller that seems standard on my boat. Just enough distance from the genoa


James Cromie
 

Looks great. This is exactly what I’m looking to for!  Thanks for your measurements.  It looks to me like you’ve had the sail designed so that the foot easily clears the bow pulpit, while your furler is down below and I’m assuming it has adequate clearance from the headsail furling motor housing.  

Any troubles with chafe up at the masthead?   

I’m thinking of using the Profurl Spinex 2.5 which will accommodate a sail up to 130 sq. m. 

How high into the wind have you used the spinnaker? 

Many thanks,
James

On Jun 17, 2019, at 6:26 PM, Jose Venegas via Groups.Io <josegvenegas@...> wrote:

James,
I have an asymmetric spy on a top-down furling RollGen 20 by Bamar. 
Spy dimensions:
Luff=17.07mtr
Leech=15.4 mtr
Foot=7.9mtr
SMG=7.105mtr

I have enjoyed it for more than 6 years with the main advantage of being able to deploy and furl back with just my wife, something that is a major plus for me.  Also, it takes a lot of turns to furl but we use the electric winch to do it.
It is also important to make sure that the apparent wind is not less than 90 degrees or more than ~150 degrees to furl correctly.
A couple of times we totally lost all wind and furling could be done poorly and had to be redone as soon as we got back some wind. 
Here are a couple of  pix of Ipanema under spy

Jose 
Ipanema SM 2K 278
Boston
 <P1030878.JPG.JPG><IMG_3296.jpg.jpg>asym.

 


James Cromie
 

Another question:  Are you happy with the sail size, or would you have used an even longer foot if you could do it again? 

-James

On Jun 17, 2019, at 6:26 PM, Jose Venegas via Groups.Io <josegvenegas@...> wrote:

James,
I have an asymmetric spy on a top-down furling RollGen 20 by Bamar. 
Spy dimensions:
Luff=17.07mtr
Leech=15.4 mtr
Foot=7.9mtr
SMG=7.105mtr

I have enjoyed it for more than 6 years with the main advantage of being able to deploy and furl back with just my wife, something that is a major plus for me.  Also, it takes a lot of turns to furl but we use the electric winch to do it.
It is also important to make sure that the apparent wind is not less than 90 degrees or more than ~150 degrees to furl correctly.
A couple of times we totally lost all wind and furling could be done poorly and had to be redone as soon as we got back some wind. 
Here are a couple of  pix of Ipanema under spy

Jose 
Ipanema SM 2K 278
Boston
 <P1030878.JPG.JPG><IMG_3296.jpg.jpg>asym.