Andrew Pace
Ranger Boats is a company that manufactures fibreglass fishing boats. They are committed to building the best boats on the market and have been making them for over 50 years. Ranger boats are made with up to nine layers of hand-laid fibreglass reinforcement in high-stress areas such as the running pad, transom, hull bottom, and deck corners. The fibreglass rope used in their hull strakes provides exceptional longitudinal strength, and their exclusive pultruded fibreglass transom and gusset assembly is stronger than steel. Ranger boats offer a high level of customisation, allowing customers to choose their horsepower, colour, and other options.
| Characteristics | Values |
|---|---|
| Materials | Fiberglass, aluminum, foam, resin |
| Manufacturing Process | Hand-laid, chopper gun |
| Quality | Highest grade materials, attention to detail, no compromise, perfection |
| Performance | Smooth and dry ride, rail-like handling, competition-ready |
| Innovation | Firsts that have become industry standards, R&D, forward-thinking engineers |
| Safety | Exceeds Coast Guard specifications, level flotation, purposeful design |
| Resale Value | Strongest in the industry |
| Durability | Reinforced high-stress areas, strong bond between gelcoat and fiberglass, adequate reinforcement |
| Customization | Horsepower, color, and options |
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What You'll Learn
- Ranger boats use pultruded fiberglass sheets cut with a 55,000-psi water saw
- High-stress areas receive hand-laid multi-axial fiberglass cloth reinforcement
- Fiberglass ropes are placed in each hull strake during lamination for added strength
- The gelcoat finish is strengthened and bonded with fiberglass using a chopper gun
- The ratio of fiberglass to resin is important for consistency and strength
Ranger boats use pultruded fiberglass sheets cut with a 55,000-psi water saw
Ranger boats are known for their commitment to excellence and innovation, and their use of pultruded fiberglass sheets cut with a 55,000-psi water saw is a testament to that. This construction method is a key factor in what sets Ranger boats apart and makes them the best brand of boats.
Pultruded fiberglass is a highly durable and versatile material that is created through a process called pultrusion. This process involves drawing raw materials, specifically glass fiber reinforcements and resins, through a profile die by a mechanical pulling force. The glass fibers are injected with resins while under tension, resulting in a strong, continuous, and optimized structural shape. This technology allows for the creation of entire panels, such as those used in Ranger boat construction.
The pultrusion process offers several advantages over traditional materials and methods. Pultruded fiberglass has a superior strength-to-weight ratio, making it lighter while maintaining its impressive strength. This lightweight property extends the life of the hardware attached to it. Additionally, when sealed, fiberglass is impervious to moisture, chemicals, seawater, and salt solutions. It is also highly resistant to corrosion, UV damage, and weathering, ensuring long-term protection for Ranger boats.
The use of a 55,000-psi water saw to cut the pultruded fiberglass sheets is a precise and efficient method. Water jet cutting, also known as waterjet cutting, utilizes an extremely high-pressure jet of water, or a mixture of water and an abrasive substance, to cut through a wide variety of materials, including fiberglass. This technology was first explored in the post-war era and has since evolved into a preferred method for cutting sensitive materials that may be affected by the high temperatures of traditional cutting methods. The water jet cutting system's high velocity and pressure, combined with the strength and versatility of pultruded fiberglass, contribute to the exceptional craftsmanship and performance of Ranger boats.
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High-stress areas receive hand-laid multi-axial fiberglass cloth reinforcement
Fiberglass is a popular material for boat-building due to its strength, lightweight, and versatility. It is a composite material made from ultra-thin glass fibers that are woven, stitched, or bonded together to create a fabric or mat. When building a boat with fiberglass, the process usually starts with a female mold. The mold is first sprayed with gelcoat, then fiberglass cloth is applied, and resin is used to saturate or "wet out" the fiberglass.
In high-stress areas, hand-laid multi-axial fiberglass cloth reinforcement is used. This type of fiberglass has several advantages over other types of reinforcement:
- Compressive performance: The multi-axial fiber is straight, allowing it to carry greater strength when subjected to loading pressure.
- Permeating performance: The non-buckling fibers in multi-axial cloth facilitate the flow of resin. The structure of the cloth makes the fiber bundles more dense, allowing the resin to easily permeate the layers.
- Molding performance: Multi-axial cloth combines multiple layers of fibers, reducing the number of layers in the composite and shortening the cycle time.
- Flexibility: The multi-axial manufacturing technology is very flexible. The number of layers in the cloth, the weight of each layer, the fiber orientation, and the fiber spacing can all be varied according to specific project requirements.
By utilizing hand-laid multi-axial fiberglass cloth reinforcement in high-stress areas, boat builders can ensure that their vessels meet the required standards for strength and durability.
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Fiberglass ropes are placed in each hull strake during lamination for added strength
Ranger boats are committed to building the best boats on the market, and their exclusive, patented use of fiberglass ropes during the lamination process is a testament to that. High-stress areas of the boat, such as the running pad, transom, hull bottom, and deck corners, receive hand-laid fiberglass reinforcement, with up to nine layers applied.
Fiberglass ropes are placed in each hull strake during lamination to provide exceptional longitudinal strength. This additional strength is comparable to the function of re-bars in concrete. The ropes themselves are made by braiding or knitting fiberglass yarn into tightly-woven textiles with diameters ranging from 1/8" to 2". The strength of the ropes comes from the braiding, which gives them more mechanical strength and resistances.
The use of fiberglass ropes in the hull strakes is a significant improvement over the methods used by some other boat builders, who fill the hull strakes with putty-like materials that offer little to no additional strength. The fiberglass ropes used by Ranger are so strong that they do not break even when repeatedly struck against a table edge.
The strength of the fiberglass itself, rather than the resin, is what determines the overall strength of the boat. Therefore, ensuring consistency in the fiberglass-to-resin ratio is crucial. Ranger boats use proper controls and techniques, such as chopper guns, to ensure that the correct ratio is maintained and that the resin and fiberglass cure together smoothly.
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The gelcoat finish is strengthened and bonded with fiberglass using a chopper gun
The gelcoat finish is integral to the construction of Ranger Boats. It is a formulated polyester resin designed to protect and decorate the underlying fiberglass. The gelcoat is mixed with methyl ethyl ketone peroxide in a bucket to activate it. This mixture is then applied to the fiberglass using a brush for smaller sections or a gelcoat spray gun for larger surfaces. The spray gun is attached to an air supply source and held about 1 foot away from the surface, spraying in short, even strokes. This process ensures an even and thorough coating, strengthening the fiberglass and creating a smooth, shiny finish.
The gelcoat itself serves as a protective barrier, providing enhanced flexibility and strength to the fiberglass. It fills in any cracks or imperfections, creating a uniform and aesthetically pleasing surface. This process is crucial in achieving the high standards that Ranger Boats are known for.
The gelcoat spray gun, such as the G-100 Gel Coat Cup gun, is specifically designed for this application. It ensures an even distribution of the gelcoat mixture, resulting in a consistent finish. The use of a spray gun also minimizes the need for extensive sanding after the gelcoat cures, saving time and effort.
It is important to work in a well-ventilated area when applying the gelcoat. Safety precautions, such as wearing gloves, a respirator, and goggles, are essential due to the chemicals involved. Additionally, the surface to be coated should be clean and free of contaminants to ensure proper adhesion of the gelcoat.
The gelcoat finish not only enhances the appearance of the boat but also provides a strong and flexible protective layer. This layer guards against potential damage and helps maintain the integrity of the fiberglass over time. The combination of the gelcoat and fiberglass results in a durable and visually appealing boat, showcasing the commitment to excellence that Ranger Boats prides itself on.
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The ratio of fiberglass to resin is important for consistency and strength
The ratio of fiberglass to resin is critical to achieving the desired consistency and strength in a boat's construction. While Ranger Boats does not explicitly state the ratio they use, they do emphasise their commitment to perfection and using the best materials. They also highlight their use of proprietary processes and industry-leading standards, ensuring their boats stand out from the competition.
In the context of boat construction, the ratio of fiberglass to resin can vary depending on the specific requirements and areas of the boat. For instance, high-stress areas like the running pad, transom, hull bottom, and deck corners may require a different ratio than less critical areas.
The strength comes from the fiberglass, while the resin plays a crucial role in holding the fiberglass together and giving it shape. Therefore, it is essential to have the right amount of resin to ensure the fiberglass fibres are adequately bound. Too little resin can result in weak spots or air pockets, compromising the boat's overall strength.
On the other hand, using too much resin can also be detrimental. It can make the boat heavier than necessary, affecting its performance and handling. Additionally, excess resin can lead to increased material costs and longer curing times. Therefore, finding the optimal ratio is essential to achieving the desired strength and consistency in boat construction.
When determining the fiberglass-to-resin ratio, several factors must be considered, including the type of resin, the weight and weave of the fiberglass fabric, the number of layers required, and the surface area to be covered. Calculations should be made to estimate the required amounts of both materials, ensuring they are mixed and applied properly.
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Frequently asked questions
The fiberglass layup process for Ranger boats involves multiple steps to ensure strength and durability. Firstly, high-stress areas like the running pad, transom, hull bottom, and deck corners are reinforced with hand-laid multi-axial fiberglass cloth to prevent air pockets, strengthen the gelcoat finish, and ensure a strong bond between the gelcoat and fiberglass. Then, a first layer of fiberglass is applied with a chopper gun, with the chopped fiberglass going in multiple directions and using a measured amount of resin. The strength of the final product lies in the fiberglass, so consistency in the fiberglass-to-resin ratio is crucial.
To ensure consistency in the fiberglass-to-resin ratio, thickness checks are performed in several areas to guarantee adequate reinforcement. This is important because an imbalance in the ratio can lead to an edge or weakness in the hull or deck where sections of hand-laid glass didn't cure together smoothly.
While hand-laying fiberglass can introduce potential errors and is much more difficult, especially with the short window of time available to work with the resin, it is still the best method for certain parts of the boat. Hand-laid fiberglass allows for better control over the smooth bonding and curing of resin and fiberglass along the entire part, which is critical to achieving strong and consistent results, especially when building multiple boats.
Ranger uses exclusive, patented pultruded fiberglass sheets that offer exceptional strength. These sheets are so strong that they are cut using a 55,000-psi water saw. Additionally, they utilize fiberglass ropes of various thicknesses and strengths to reinforce the hull strakes, providing exceptional longitudinal strength similar to re-bars in concrete.
