Choosing the right anchor for an inflatable boat is not just a matter of convenience, but a critical element of safety on the water. Many beginners make the mistake of buying the first cargo they get or relying on the bucket without realizing that they are not the only ones who are safe. retainer The PVC material requires a special approach, as sharp edges or excessive weight can damage cylinders, and a lightweight structure simply cannot cope with current or wind.
In this article, we will discuss in detail what anchor for a PVC boat, how much weight should be and why classic sea "cats" can be dangerous to your vessel. You will learn about the nuances of the choice of materials, methods of attachment and calculations that will help to avoid demolition from the parking lot during fishing. anchor or modern design of the Denforth type will provide you with a calm fishing, even in strong winds.
Ignoring anchoring rules often leads to unpleasant situations where the boat is taking off during fishing, and to avoid this, you need to consider not only the weight of the load, but also the area of engagement, and the nature of the bottom of the reservoir. Let's figure out which equipment will be the ideal solution for your situation.
Calculating the weight of the anchor: safety mathematics
The first and most important question that arises for the owner of the vessel is: how much weight anchor is needed for a PVC boat of a certain length? There are several proven formulas that professionals use to determine the required weight of the cargo. The most common method is that the weight of the anchor should be approximately 10% of the load capacity of the boat or 1 kg per 1 meter of hull length. However, these figures are relevant for calm water and sandy bottom.
If you plan to fish in rivers with strong currents or in places where the wind blows often, the standard calculations may fail. retention For a boat 3 meters long in calm, it may be enough to have 2-3 kg, but with a wind of 5-7 m / s, this will not be enough. Experienced water engines advise always to have a margin by weight, as it is better to have a slightly heavier anchor than to fly it on the water.
⚠️ Warning: Never use anchors weighing less than 1.5 kg for boats longer than 2.8 meters if you are in open water. lightweight cargo will not provide a reliable hook in gusts of wind.
The bottom material should also be considered. For a muddy or sandy bottom, the weight may be less, as the anchor paws sink deep into the ground. For a rocky or grassy bottom, a heavier and more tenacious construction is required. Cat anchor Weighing 4 kg can hold perfectly on the stones, getting stuck between them, but on the sand it will simply drag if it does not have enough paw area.
Types of anchors: which design to give preference
The market offers many options for anchors, but not all are suitable for inflatable vessels. Design classification helps to understand which anchor for PVC boats is the best type of bottom to hold. The most popular are cats, Denforts and Grappleys, but each has its own specifications of operation.
The cat anchor, or Admiralty, is a classic four-fold-legged structure, a versatile variant that can be assembled into a compact cylinder for easy transportation, but it has a significant drawback: if the legs fold when they fall to the bottom, they may not catch. slat-barThis makes it difficult to release it when stuck.
- 🦀 Cat anchor: versatile, compact, but can slide on a solid bottom.
- 🏗️ Denforth anchor: has excellent engagement on sand and silt, but is afraid of stones.
- ⚓ Admiralty: ideal for a muddy bottom, but heavy and requires a lot of space.
- 🪨 Mushroom anchor: good for parking on a soft bottom, but useless on the current.
Denforth or Hall structures have flat legs that hit the ground under the pull of a cable, and they're very effective on sand, shells and silt. But on rocky bottoms or in grass thickets, their paws can slip or get clogged. PVC boats often choose modifications of these heel-heel-heel anchors, which improve their efficiency.
Materials of manufacture and their impact on the operation
The choice of anchor material affects not only its cost, but also its durability and behavior in water. The main materials are steel, galvanized iron and cast iron. Steel anchors are strong and relatively light, but without coating they quickly rust. Galvanized models last longer, but the zinc coating can beat against stones, after which corrosion begins.
Cast iron anchors are a budget option that's often found in stores. They're cheap, but they're very fragile. When hit by rocks or concrete pier, cast iron can split. specific strengthTherefore, to achieve the same retaining force, the cast iron anchor will be larger and larger than the steel counterpart.
| Materials | Weight (for 3.2 m boat) | Resistance to corrosion | Price. |
|---|---|---|---|
| Steel (painted) | 3-4 kg | Low. | Medium |
| Galvanized steel | 3-4 kg | High. | High. |
| Cast iron | 4-5 kg | Medium | Low. |
| Stainless steel | 3-4 kg | Maximum | Very high. |
The most reliable, but also expensive solution is stainless steelThese anchors are virtually non-rusting, aesthetically pleasing and last for decades, but for most amateur anglers, conventional structural steel with a high-quality paint coating is the best choice, which can be updated if necessary.
Anchor cable: why chain is better than rope
Many beginners make the mistake of tying the anchor directly to a thin rope. It's a gross safety violation. There must be a 1-1.5-meter chain between the anchor and the main faline (anchor end). The chain presses the apex of the anchor to the bottom, ensuring the correct angle of entry of the legs into the ground. Without the chain, the anchor can reach out to the top and simply slide along the bottom without burrowing.
In addition, the heavy chain extinguishes the boat's jerks caused by turbulence or gusts of wind. If you use only synthetic cable, each time you pull the anchor out of the ground and fall again, losing the hook. anchor-chain It makes parking stable and predictable, and for PVC boats, a chain of 6-8 mm in diameter is enough.
How to calculate the length of the anchor end?
The length of the anchor end should be 3-5 times the depth of the reservoir in the parking lot. For example, at a depth of 4 meters, you need 12 to 20 meters of cable, the reserve is necessary for the tension angle to be sharp, which improves anchor engagement.
The main cable is best used in a wicker synthetic cord (polypropylene or nylon) that does not rot, does not absorb water and is comfortable to work. It is important that the cable is bright in color (orange, salad), so that it is clearly visible in the water, which will help to avoid entanglement in the propeller of the motor when lifting the anchor.
Fixing methods and safety techniques
The anchoring on an inflatable boat is a separate topic of discussion. The anchor end should not be tied to a bow or aft duck if the boat is standing across a wave or strong current. In this situation, the boat can turn side to wave, which will lead to a rollover. The anchor must always keep the boat nose against the current or wind.
For safe fastening use special anchor-ribs Many modern PVC boats have regular anchor rings, and if they don't, you can use a rigging bracket that runs through the duck handle, but with the possibility of rapid rupture in an emergency, and the rule is that the anchor end should be able to quickly uncouple from the boat in one jerk.
⚠️ Warning: Never tie the anchor end to the structure of the boat. In case of strong winds or abrupt changes in conditions, the boat can turn or drag under the water with the anchor. Use quick-removal carbines.
Also worth mentioning is the anchor bag or net, and keeping a wet, dirty anchor right in the tank or on the floor of the boat is a bad idea. Sand and stones will quickly wipe the PVC cloth. A special bag of strong mesh will allow water to drain and dirt to dry, keeping the cockpit clean.
☑️ Checking before getting on the water
Homemade anchors: is it worth saving
You can find a lot of instructions on how to make anchors yourself from old pipes, lead or concrete. Of course, you can make an anchor for a PVC boat yourself, and this will save your budget. But is it worth risking safety to save several thousand rubles?
Homemade structures often fail to calculate the center of gravity, if the center of gravity is shifted, the anchor will fall to the bottom incorrectly and not burrow, and homemade armature paws may have sharp edges that will damage cylinders when inactively handled, factory products are tested for tearing and hooking.
If you do decide to anchor yourself, use old car brake discs or forged elements. Avoid using concrete, as it can crumble from hitting stones and lose weight.
But there are some good examples, like a rail anchor or a massive pipe with welded paws, that can be very effective on a rocky bottom, but these structures tend to be heavier than factory counterparts and take up more space. For small PVC boats, compactness is often more important than absolute mass.
FAQ: Frequently asked questions
Can I use one anchor for boats of different lengths?
Yes, you can if the weight of the anchor is matched to the maximum length of the boat you own, it will be even more efficient for a smaller boat, just harder to carry, as long as the weight does not exceed reasonable limits for transportation.
Which anchor is better for fishing on a strong current?
For strong currents, anchors with large paws and sharp profiles, such as the increased weight Denforth, are best suited. It is also critical to use a sufficient length of the anchor end so that the angle of attack is gentle.
Should I remove the anchor after fishing?
Yes, if the anchor is not made of stainless steel, it is advisable to lubricate it with penetrating lubricant (such as WD-40) or waste oil after drying to prevent corrosion, especially in welding areas.
What if the anchor is stuck?
Don't pull the boat sharply, it's dangerous. Try moving over the hook and pulling vertically up. If it doesn't work, use a thrust load or tie the cable to the stern and pull back to change the angle of thrust.
The ideal anchor for a PVC boat is a balance between weight, compactness and bottom type. Don't skimp on safety when choosing equipment.
In conclusion, anchor selection is a personalized process that depends on the operating conditions. There is no universal answer to the question of which anchor for a PVC boat is better, without being tied to a particular reservoir. But by following the weight guidelines, using a chain and following safety practices, you minimize the risks and get the most out of being on the water.