Author Topic: Laminated Sails  (Read 9301 times)

Eric Jurado

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Laminated Sails
« on: May 09, 2012, 01:06:35 PM »
I wanted to share panel layouts for my new laminated sails, courtesy of Hyde and valuable inputs from Don Corey. Please see attached.
Eric Jurado
U20 No. 225
Southeast Asia

Mark Allen

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Re: Laminated Sails
« Reply #1 on: May 09, 2012, 04:46:10 PM »
Eric,
  Thanks for posting. Do you know what the area of each sail is?

Thanks,

Mark Allen
Duck or Die!

Eric Jurado

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Re: Laminated Sails
« Reply #2 on: May 10, 2012, 02:26:44 AM »
Hi Mark,

Mainsail is 19.61 square meters or 211.08 square feet (vs. the class mainsail of 205 square feet)
Jib is 10.16 square meters or 109.36 square feet (vs. the class jib of 100 square feet)
Spinnaker is 45.07 square meters or 485.13 square feet (vs. the class spinnaker of 452 square feet)

Kind regards,

Eric
Eric Jurado
U20 No. 225
Southeast Asia

Chuck Ballew

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Re: Laminated Sails
« Reply #3 on: May 21, 2012, 07:21:48 PM »
Looks nice. What are the benefits to having a flat top main??
Chuck Ballew
U20 #58 "Mischief"

Eric Jurado

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Re: Laminated Sails
« Reply #4 on: May 22, 2012, 07:22:02 AM »
The major benefits are improved light air performance and heavy air boat handling. Square top mainsails twist much more easily than a conventional sail. When a puff hits, the square top immediately deflects and quickly opens the leech and unloads the sail. This gives the crew time to respond and depower, if required, keeping the boat on her feet.
Eric Jurado
U20 No. 225
Southeast Asia

Tac Boston

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Re: Laminated Sails
« Reply #5 on: May 22, 2012, 04:37:16 PM »
I would be very very careful putting either a laminate or flat top mainsail on a tin rig.

The other big advantage of a flat top main is that the least aerodynamic shape is a triangle.

Doug Johnstone

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Re: Laminated Sails
« Reply #6 on: May 22, 2012, 05:15:10 PM »
What are the concerns with either a laminated sail or a square top main on a metal rig versus a carbon rig?

Tac Boston

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Re: Laminated Sails
« Reply #7 on: May 22, 2012, 07:43:15 PM »
A good laminate will not stretch and therefore put more load on the rig, which as we know will break most of the newer mast as they are.

Chuck Ballew

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Re: Laminated Sails
« Reply #8 on: June 07, 2012, 03:48:51 PM »
Eric, let me know when you start using the new sails from Hyde!!
Chuck Ballew
U20 #58 "Mischief"

Eric Jurado

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Re: Laminated Sails
« Reply #9 on: June 14, 2012, 10:57:18 AM »
Will do, Chuck. Will also take pictures and report on the performance.
Eric Jurado
U20 No. 225
Southeast Asia

Eric Jurado

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Re: Laminated Sails
« Reply #10 on: March 08, 2013, 09:47:13 AM »
It's been about 9 months since I started using my laminated sails, which includes a square top main. I want to report on my observations for the benefit of the class who are considering using laminates.

I sail in tropical waters where winds can be light to strong and puffy (20+ knots) all in one day, every day. Wind shifts are large due to increased mixing of air in the lower atmosphere. I have an aluminum mast and the rig tensions are set for moderate winds with some pre-bend. The mast comes equipped with a high-wind kit or short stays to prevent side-ways over bending in the lower section of the mast. The laminated sails were made for my rig and overall sailing conditions.

Observations:

- The sails are at least 30% lighter.
- The main takes less effort to raise because of less weight. It equally takes less effort to douse.
- The jib takes less effort to roll with no snags on the top furler.
- When the sails are luffing, the sound is muffled to none.
- I can see the jib telltales, job leach, leeward spreader, and other boats and obstructions through the mainsail laminate.
- The sails are easier to trim.
- Performance is improved in light an moderate winds. The sails continue to retain their shape.
- In moderate winds, the speed bubble in the main is smaller.
- When the wind picks up to 20+ knots in the afternoon, the main is easy to flatten, twist, and depower, with no excessive healing.
- I have not seen nor experienced any noticable problem or pressure on the mast.

Overall, I am happy with the laminates' performance, feel, and, of course, look.
Eric Jurado
U20 No. 225
Southeast Asia

Eric Jurado

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Re: Laminated Sails
« Reply #11 on: March 08, 2013, 09:51:04 AM »
I also forgot to add that my upwind tacking angle is narrower.
Eric Jurado
U20 No. 225
Southeast Asia

Don Corey

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Re: Laminated Sails
« Reply #12 on: March 09, 2013, 02:11:37 AM »
Eric, great report on the sails you've been using.  Glad you are enjoying the boat.  I do 95% handicap racing and have always used a class main only with oversized laminate jibs, way oversized .6 oz chutes and the killer code zero.  After your report I may have to rethink the 'main' thing.  Thanks, Don Corey   #25 fore  #159 scram  #253 definitly for sale
Don Corey   #25  fore 
U20 Class member since 1997

Eric Jurado

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Re: Laminated Sails
« Reply #13 on: March 11, 2013, 07:29:07 AM »
Thanks for your inputs as well, Don. Attached are some photos.
Eric Jurado
U20 No. 225
Southeast Asia

Glenn VanHeel

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Re: Laminated Sails
« Reply #14 on: April 01, 2013, 03:20:59 AM »
Eric, saw these on Facebook Sailing subic
I didn't fall from heaven, I got kicked out of hell !!!