The question of what the egg boat is called is often asked of newcomers who have first encountered the unusual design of a small boat, and in the professional environment of water-engineers and fishing enthusiasts, this detail is not related to biological objects, but is an important part of the stability of the boat. side-floatIt is technically called an outriger, although it is often compared to an egg because of its characteristic oval shape.
Similar designs can be found on a wide variety of types of vessels, from traditional Polynesian canoes to modern PVC inflatable boats used for trolling or snorkeling. Outrigger Outrigger is a remote support that attaches to the side and significantly expands the overall width of the vessel without increasing the width of the boat itself, an engineering solution that compensates for rolling when high winds or shifting the center of gravity of the crew.
In the context of domestic fishing and small boat operations, the egg often serves as an additional volume to increase stability. If you're planning to upgrade your boat, you need to understand the difference between decorative elements and functional units. Outrigger eggs on PVC boats are most often used to install powerful motors or to ensure safety when standing up in full growth while fishing.
Terminology and origin of the name
When you think about the name of an egg boat, it's important to separate the slang from the technical documentation. You won't find the word "egg" in official GIMS manuals and boat tickets. It's a persistent jargon that's entrenched among inflatable boat owners. outrigger Sometimes the term "balance float" is also used, especially when it comes to boats where these elements are symmetrical.
Historically, the use of side supports dates back to ancient times, when Austronesian peoples began to equip their canoes with side floats for outdoors. In modern design, especially in the PVC boat segment, these floats often take on egg-like shapes to improve water flow and reduce resistance, and this form gave rise to the popular name.
It is important to understand that the egg is not just a piece of plastic or a balloon, but a complex element that affects hydrodynamics. Outriger design It can be rigid (plastic or composite) or inflatable, integrated into the cylinders of the boat. Depending on the type of vessel, the function can shift from stability (to avoid flipping over) to the possibility of installing a more powerful engine that, without support, would simply break the transom.
- 🛶 Outrigger - the main technical term, denoting a lateral outboard support to increase stability.
- 💡 Resilience The ability of the vessel to withstand external forces (wind, wave) and return to its original position after rolling.
- 📏 Overall width The size of the boat in its widest part, which is increased by the installation of "eggs".
Design features and materials
Modern "eggs" or outriggers are made of materials with high buoyancy and resistance to mechanical damage. polystyrene Or high-density foam enclosed in a sturdy fiberglass casing, and more expensive models mounted on production boats can be made of low-pressure polyethylene (HDPE) by rotational molding, making them virtually unkillable.
The attachment of outriggers to the boat hull is a critically important node, and usually metal brackets made of stainless steel or aluminum alloys are used, which are attached to stringers (longitudinal power elements) or directly to cylinders through special shaft bars. PVC inflatable boats They often have built-in pockets or hinge profiles where removable outriggers are inserted, which allows them to be quickly dismantled for transportation or storage.
Special attention should be paid to the shape of the cross-section. As mentioned, the egg is not an accident. The round, drop-shaped shape minimizes slapping on the water on the go and reduces the risk of catching on to aquatic vegetation or driftwood. Rigid floats inside can have an air chamber or be completely filled with floating material, which eliminates the possibility of flooding even if the outer shell breaks.
⚠️ Attention: When making or installing outriggers yourself, make sure that the anchorage points do not fall on the seams of cylinders or weak areas of the fiberglass case. Incorrect installation can lead to depressurization of the boat and loss of buoyancy at the most inopportune time.
The size of the eggs varies depending on the displacement of the boat. For small inflatable boats up to 3 meters long, floats of 15-20 liters on each side are enough. For heavier aluminum or (FRP) boats, the volume can reach 50-70 liters. It is important to observe the symmetry: left and right outriggers must have the same volume and weight, so as not to create a differentiation on board.
Can I use car cameras as outriggers?
Theoretically, you can put them in a mesh frame, but it's very unreliable. Rubber breaks down quickly from ultraviolet light, and the shape doesn't provide the right hydrodynamics. It's better to use specialized inflatable tubes made of PVC fabric.
Functional purpose on PVC boats
In PVC inflatable boats, the installation of side floats (eggs) solves several critical problems at once. security
Second, the "eggs" allow for more powerful motors. The standard inflatable boat scatter is often not designed to power a motor greater than 5-8 hp. When you install a powerful engine, the boat's nose can pick up and the snag can go underwater. The side floats located in the aft part of the load and prevent the stern from being overly submerged, allowing you to safely operate engines up to 15-18 hp on medium-sized boats.
Third, it's convenient for fishing, and having a wide support on the sides allows the fisherman to stand up to the full height to throw spinning or work with a sonar without fear of losing his balance. trolling From the side of such a boat becomes much more comfortable, since the boat is less prowling and swinging on the wave.
- 🎣 Stabilization - prevention of rolling when catching large fish or sudden movements.
- 🚀 Power - the ability to install a motor of greater power without the risk of damaging the transom.
- ⚖️ Balancing - compensation of weight of heavy batteries or anchor equipment placed on one of the sides.
It is worth noting that the installation of outriggers slightly reduces the maximum speed of the boat due to increased water resistance and sailing. However, for fishing tasks where platform stability is important, this loss of speed is an acceptable sacrifice.
☑️ Checking the readiness of the boat with outriggers
Impact on driving performance and handling
The installation of side supports ("eggs") inevitably changes the nature of the behavior of the vessel on the water. A boat with high sides and extra floats is more susceptible to side winds, which requires the steering wheel to be more attentive, especially when moving across the wave or wind course.
On the other hand, in quiet water or when moving against a wave, handling can improve. A wide base makes the boat less sensitive to small ripples. However, at high speed (planing), outriggers can create additional turbulence. If the "eggs" are immersed in the water too deep, they will act as an anchor on one side, leading the boat's nose to the side ( yaw).
To minimize the negative effect, it is important to adjust the height of the installation correctly. Ideally, on standing water and when the boat is fully loaded, the bottom of the eggs should only touch the water slightly or be located 1-2 cm from the surface. Adjustable brackets They allow you to change the height of the floats depending on the load of the boat.
| Parameter | No outriggers. | Outriggers (eggs) |
|---|---|---|
| Resilience | Medium/Low | High. |
| Maximum speed | 100% | 90-95% (small decrease) |
| Fuel consumption | Standard. | Slightly elevated (due to resistance) |
| Comfort fishing | It requires caution. | High (you can get up) |
To reduce water resistance at speed, try to use streamlined, drop-shaped outriggers, not just round cylinders. This will save fuel and increase top speed.
Comparison with traditional stabilizers
There is often confusion between outriggers ("eggs") and zygomatic stabilizers or interceptors. Traditional stabilizers are fixed or active elements located on the bottom or bottom of the board that do not protrude beyond the overall width of the boat statically, their task is to extinguish the onboard swing already in motion.
Eggs, being remote floats, work differently. They create a physical barrier to roll. If the boat starts to roll on board, the outrigger sinks into the water, and Archimedes' force pushes the side back out. It's a passive but very powerful system. Unlike active stabilizers, which require energy or speed to work, the egg even works in the parking lot.
For fishing in standing water or trolling at low speeds, out-of-the-box floats (eggs) are much more effective than zygomatic keels. However, for high-speed pleasure boats, where cleanliness and minimal resistance are important, the solutions hidden in the hull are preferable, depending on the owner's priorities: maximum stability and load capacity or speed and elegance.
⚠️ Attention: When operating boats with wide outriggers, be careful when mooring to steep concrete walls or in cramped marinas. Protruding parts can be easily damaged against concrete or on the sides of neighboring boats. Always use protective breakers (kranks).
Rules of operation and care of outriggers
The durability of side floats depends on proper care. When it comes to inflatable eggs, you need to check the pressure regularly and inspect the surface for punctures. Sand and dirt sticking to the valves can violate the leakiness. Rigid plastic structures require protection from ultraviolet light, which over time makes plastic brittle.
Fastenings are a weak point of any design. Metal brackets that are in constant contact with water (especially salt) are susceptible to corrosion. Even stainless steel can suffer from electrochemical corrosion paired with aluminum parts of the boat. It is recommended that after each freshwater fishing, all metal elements be washed and movable joints lubricated.
When transporting a boat on a trailer or in the body of a car, outriggers often have to be removed. The dismantling process It doesn't have to be complicated, but it does require care. Don't throw brackets and floats in a bunch of other things so you don't scratch them. It's better to keep eggs in a sun-protected place, in a straightened form, so that there's no clogs of material.
Regularly checking out outrigger mounts and UV protection ensures that your boat will remain stable and safe for many seasons.
FAQ: Frequently asked questions
Can I make an egg for a boat myself?
Yes, many craftsmen make outriggers themselves. The most popular method is using large-diameter sewers (160-200 mm) sealed from the ends, or making molds out of foam and covering with fiberglass. But it is important to remember the buoyancy calculation: a homemade device must withstand a person's weight plus margin, otherwise it will not save you when it rolls over.
What is the name of a boat with two such floats?
A boat with two side floats (left and right) is often called a boat. trimaran (if the floats are large and are the main carriers) or simply a double outrigger boat. In the context of PVC boats, it is usually just a modified keel or flat bottom boat with additional stabilizers.
Does the egg increase the boat’s loading capacity?
Technically, yes, because it adds more displacement, but you can't rely on outriggers as your primary source of buoyancy when fully loaded, and they're designed to work in extreme situations (roll) or as an added support, but not as a replacement for the main cylinders.
Do I need to register a boat with installed outriggers in GIMS?
The small vessel itself is subject to registration. Installation of removable outriggers does not usually require changes to the boat's ticket unless they are a load-bearing structure (as in trimarans). However, if outriggers are built in and change the overall length or width of the vessel above the established norms, theoretically there may be questions during the survey.
How much weight can one egg withstand on water?
Depends on the volume. According to Archimedes' law, 1 liter of volume pushes 1 kg of cargo. If a float of 30 liters is submerged in water by half, it can hold approximately 15 kg of additional weight. In order to hold a person (70-80 kg), in a critical situation, the boat board must go underwater, and large floats (total more than 100-120 liters on both sides) come into operation.