All,
Forgive me, this is a bit long winded, but I hope it is of sufficient interest to you, to inspire you to help me run down some of the answers. To make a long story short, I simply want to know what it actually ‘IS’ that makes Hunter Sailboats so bad in 'real' tangiable terms?
I’m a proud owner of a 1988 Hunter Legend 45. I’ve had this boat for 8 years now and have put several thousand miles on it sailing all over the Great Lakes.
During those 8 years I’ve read and/or been on the receiving end of ALL types of patronizing remarks about Hunter inferior design, strength and quality. The majority of which I just smile at or ignore with the same ‘thick skin’ you get after serving 20+ years in the US Army. I’m currently employed as a weapon system manager for the Dept. of the Army.
I make no pretense about being a financially $$ ‘poor’ sailor, because I am one. The same facts of Life that have me currently driving a 2003 Chrysler Caravan were in play when I made my decisions to buy a used Hunter back in 2006. This doesn’t mean I wouldn’t like to own a BMW or Ferrari some day. ;^)
But what I am really interested in discussing and getting YOUR feedback on is: “What are the real (and I mean quantifiable reasons, not personal opinion) differences in 1) Design, 2) Strength and 3) Qualities that make Hunter boats such an inferior product?”
In order to keep this effort simple and focused, I’d suggest that we use a simple work breakdown structure made up of: 1) Hulls, 2) Interior Modules and 3) the Deck. Because these are the three (3) main components common to the majority of firms that are manufacturing fiberglass sailboats.
Remember this is a public discussion, NOT a lecture by some ’would be expert on the internet’. What I am providing below is just a summary of the construction research I conducted. Which itself is intended to provide a basis for this discussion. I need your help relating it to our Hunter sailboats and its competitors. I want to start with just the Hulls for now.
1. HULLS
I’ve watched the OEMs production process videos on Beneteaus, Bavarias, Jeanneaus and Hunters and see NO appreciable differences in the processes they all use to produce their fiberglass boat Hulls.
They all use common fiberglass construction techniques to construct a solid laminate with conventional woven materials and general purpose polyester resins. Granted that over the years there was limited knowledge of what laminate thickness should be, resulting in many overbuilt, and heavy hulls. Solid construction is still very popular with many production and custom builders and, with the experience and knowledge they’ve gained over the years, solid hulls are now not as heavy without sacrificing strength and stiffness. The primary reasons being major improvements made to create a better solid laminate. These improvements were the result of more sophisticated materials, resins and methods of construction.
This makes a nice lead into the subject of vacuum bagging. Vacuum bagging and resin infusion are widely used to further improve the glass-to-resin ratio. Like everything in life, there are no set rules and a host of tradeoffs will apply, just like the ones listed below.
Reasons to use vacuum bagging:
Better uniformity of lay up (No thick/ thin cross sections)
Stronger finished product (Higher glass to resin ratio)
Better Strength to weight ratio
Draw backs to using vacuum bagging:
Increased labor time and materials
Smaller cross sections* (More layers required to duplicate hand layup thickness)
*Note that this last "draw back" can also be viewed as an asset. A thinner cross section of a vacuum bagged layup is in reality quite stronger and lighter than a resin rich hand layup method.
Over 30 years ago sailboat designers and builders started using core materials for hulls in order to reduce the total weight, especially in the topsides. Cored hulls have become very popular, especially for power boat construction. The most popular core materials are balsa and PVC cross-link foam, including Klegecell, and Divinycell. Another popular foam core is Airex, which is made of PVC but is linear in its chemistry (not cross-linked). Core-Cell is another foam core that has become widely used in the past 15 to 20 years. It is similar in properties to Airex but is made with different SAN chemistry. The advantage of using core is the reduction in weight by using thinner laminates on each side of the core.
What is most important when core is used below the waterline is for the builder to remove the core and replace it with solid glass where a thru-hull fitting is to be installed. This allows the thru-hull fitting to be sealed and tightened without compressing the core.
Sailboat Construction Standards.
All of the above information is nice to know but, really doesn’t have any value at all unless you can compare it to a quantifiable standard (e.g. such as a measuring stick).
I’ve researched American Bureau of Shipping (ABS) standards for classifying and categorizing construction requirements for offshore sailboats. Most of which come in the form of complying with several ISO specifications. This is the same purpose that we use MIL Standards for Army weapon acquisition.
Here’s the bottomline on this entire Hull topic. These ISO standards governing sailboat hull construction specify the type and amount of structural force that the hull material has to withstand in a defined area (e.g. surface area in square inches). It does Not specify the composition or thickness of the materials being used in that area. Which leaves quite a bit of open room for debate?
None of the four OEMs I listed above (including Hunter) claimed that their products were made to ABS standards.
So, as I said several times throughout this posting, “Where’s the beef” as it pertains to Hunter Hull construction?
Remember, I’m looking for quantifiable numbers here, not conjecture and/or opinion.
Regards,
James10016
Forgive me, this is a bit long winded, but I hope it is of sufficient interest to you, to inspire you to help me run down some of the answers. To make a long story short, I simply want to know what it actually ‘IS’ that makes Hunter Sailboats so bad in 'real' tangiable terms?
I’m a proud owner of a 1988 Hunter Legend 45. I’ve had this boat for 8 years now and have put several thousand miles on it sailing all over the Great Lakes.
During those 8 years I’ve read and/or been on the receiving end of ALL types of patronizing remarks about Hunter inferior design, strength and quality. The majority of which I just smile at or ignore with the same ‘thick skin’ you get after serving 20+ years in the US Army. I’m currently employed as a weapon system manager for the Dept. of the Army.
I make no pretense about being a financially $$ ‘poor’ sailor, because I am one. The same facts of Life that have me currently driving a 2003 Chrysler Caravan were in play when I made my decisions to buy a used Hunter back in 2006. This doesn’t mean I wouldn’t like to own a BMW or Ferrari some day. ;^)
But what I am really interested in discussing and getting YOUR feedback on is: “What are the real (and I mean quantifiable reasons, not personal opinion) differences in 1) Design, 2) Strength and 3) Qualities that make Hunter boats such an inferior product?”
In order to keep this effort simple and focused, I’d suggest that we use a simple work breakdown structure made up of: 1) Hulls, 2) Interior Modules and 3) the Deck. Because these are the three (3) main components common to the majority of firms that are manufacturing fiberglass sailboats.
Remember this is a public discussion, NOT a lecture by some ’would be expert on the internet’. What I am providing below is just a summary of the construction research I conducted. Which itself is intended to provide a basis for this discussion. I need your help relating it to our Hunter sailboats and its competitors. I want to start with just the Hulls for now.
1. HULLS
I’ve watched the OEMs production process videos on Beneteaus, Bavarias, Jeanneaus and Hunters and see NO appreciable differences in the processes they all use to produce their fiberglass boat Hulls.
They all use common fiberglass construction techniques to construct a solid laminate with conventional woven materials and general purpose polyester resins. Granted that over the years there was limited knowledge of what laminate thickness should be, resulting in many overbuilt, and heavy hulls. Solid construction is still very popular with many production and custom builders and, with the experience and knowledge they’ve gained over the years, solid hulls are now not as heavy without sacrificing strength and stiffness. The primary reasons being major improvements made to create a better solid laminate. These improvements were the result of more sophisticated materials, resins and methods of construction.
This makes a nice lead into the subject of vacuum bagging. Vacuum bagging and resin infusion are widely used to further improve the glass-to-resin ratio. Like everything in life, there are no set rules and a host of tradeoffs will apply, just like the ones listed below.
Reasons to use vacuum bagging:
Better uniformity of lay up (No thick/ thin cross sections)
Stronger finished product (Higher glass to resin ratio)
Better Strength to weight ratio
Draw backs to using vacuum bagging:
Increased labor time and materials
Smaller cross sections* (More layers required to duplicate hand layup thickness)
*Note that this last "draw back" can also be viewed as an asset. A thinner cross section of a vacuum bagged layup is in reality quite stronger and lighter than a resin rich hand layup method.
Over 30 years ago sailboat designers and builders started using core materials for hulls in order to reduce the total weight, especially in the topsides. Cored hulls have become very popular, especially for power boat construction. The most popular core materials are balsa and PVC cross-link foam, including Klegecell, and Divinycell. Another popular foam core is Airex, which is made of PVC but is linear in its chemistry (not cross-linked). Core-Cell is another foam core that has become widely used in the past 15 to 20 years. It is similar in properties to Airex but is made with different SAN chemistry. The advantage of using core is the reduction in weight by using thinner laminates on each side of the core.
What is most important when core is used below the waterline is for the builder to remove the core and replace it with solid glass where a thru-hull fitting is to be installed. This allows the thru-hull fitting to be sealed and tightened without compressing the core.
Sailboat Construction Standards.
All of the above information is nice to know but, really doesn’t have any value at all unless you can compare it to a quantifiable standard (e.g. such as a measuring stick).
I’ve researched American Bureau of Shipping (ABS) standards for classifying and categorizing construction requirements for offshore sailboats. Most of which come in the form of complying with several ISO specifications. This is the same purpose that we use MIL Standards for Army weapon acquisition.
Here’s the bottomline on this entire Hull topic. These ISO standards governing sailboat hull construction specify the type and amount of structural force that the hull material has to withstand in a defined area (e.g. surface area in square inches). It does Not specify the composition or thickness of the materials being used in that area. Which leaves quite a bit of open room for debate?
None of the four OEMs I listed above (including Hunter) claimed that their products were made to ABS standards.
So, as I said several times throughout this posting, “Where’s the beef” as it pertains to Hunter Hull construction?
Remember, I’m looking for quantifiable numbers here, not conjecture and/or opinion.
Regards,
James10016