When you go to a pond in an inflatable vessel, the angler or tourist quickly faces the need for a reliable fixation of the boat, and the wind and current can turn a calm fishing into a chaotic wander that carries away baits and nerves. PVC anchorage It is a key factor in successful fishing or comfortable rest.
Many beginners make the mistake of relying on intuition or taking the first load they get. However, inflatable boards create sailing, and a light body is easily carried away even by a weak wind. Insufficient weight of the holder will lead to constant drift, and excess can create a dangerous situation with a sharp jerk or the need to urgently remove yourself from the spot.
In this article, we will discuss the calculation methods in detail, consider the tables of compliance and choose the optimal design for your type of vessel, you will learn why the shape of the legs is more important than pure weight, and how to organize anchorage properly.
Factors affecting the choice of anchor device
Choosing anchoring equipment is not just about finding a metal object of the right mass, but it is influenced by the vessel's own parameters and environmental conditions. Inflatable boat It has a specific movement dynamics, different from the rigid body, which requires a special approach.
The wind load is the first to be taken into account. PVC materials and inflatable tubes create a significant area of sailing; even in the absence of a visible current, strong side wind can rip a boat off a light load; and the type of bottom is also important: mud, sand, rocky soil or grass thickets require different paw designs.
And the length of the boat itself, the longer the hull, the larger the area it represents for the impact of the elements, and the presence of the motor on the transom changes the center of gravity and the behavior of the boat at anchor.
- 🌊 Hydrology: speed and depth in the parking area.
- 💨 Meteorology: wind strength and direction, probability of squalls.
- ⚓ Construction: type of bottom (silt, sand, stone) and the presence of vegetation.
- 🛶 Boat parameters: length, width, awning and wind protection.
⚠️ Attention: Never tie the thack (anchor end) rigidly to the transom or handle of the boat without a burst insert. In a sharp tear, this can lead to the boat capsizing or damage to the cylinders.
Method of calculating the mass of the anchor
There are several time-tested formulas for calculating the weight of a cargo, the classic method, often used in Soviet literature, is based on the displacement of a vessel, which requires that the mass of the anchor be approximately 10% of the displacement of a boat.
But for inflatable structures, the hull length is more relevant, and it's easier to measure, and it's directly correlated with sailing. The formula is this: mass (kg) = 3.5 L, where L is the length of the boat in meters, and this gives a baseline for calm water.
If you plan to fish in the current or in windy weather, the result should be increased by 20-30%, and it is also worth considering the material of manufacture: cast iron models are more compact than steel at the same weight that is important for placing in a haunduk.
For a quick estimate, you can use a simplified rule: 1 kg of anchor weight per 1 meter of boat length. This is a rough calculation, but it works for most standard calm water situations.
Table of correspondence of the length of the boat and the weight of the anchor
To avoid making complex calculations every time, it is convenient to use ready-made tables, which are compiled with average operating conditions in inland water bodies, and the data are relevant for standard PVC inflatable boats.
If the conditions on the pond are difficult (a strong current, a sluggish bottom that does not hold its legs well), it is recommended to take the load with a reserve. The optimal weight of the anchor for a boat with a length of 3 meters is 4-5 kgThis is the gold standard for most two-seater models.
| Boat length (m) | Min. weight (kg) | River. weight (kg) | Type of bottom |
|---|---|---|---|
| 2.5 | 2.0 | 3.0 | Sand, silt |
| 2.5 - 3.2 | 3.0 | 4.5 | Universal. |
| 3.2 - 3.8 | 4.5 | 6.0 | Clay, grass. |
| 3.8 - 4.5 | 6.0 | 8.0 | Rocks, shells. |
| more than 4.5 | 8.0 | 10.0+ | Anybody |
Using too light a load will cause the boat to drag along the bottom constantly, smelting the ground and preventing it from catching. At the same time, an excessively heavy anchor is difficult to lift manually, especially from a depth of more than 3-4 meters, and it takes up a lot of space in the cockpit.
Types of anchors for inflatable boats
The design of the anchor is as important as its weight. For PVC boats, where every kilogram of weight and liter of volume is on the bill, not all marine samples are suitable.
Cat anchor Four folding horns provide a reliable grip on rocks, snags and bottom irregularities, but on clear mud or soft sand, the paws can simply slide over the surface without burrowing, and the cat tends to overgrown with algae, which increases its weight and size.
Cargo-iron It's a cast-iron bar with an ear, and it has no legs and it holds it solely by weight and friction, and it's ideal for a muddy bottom where the legs fall through, and for short parking lots, because it's easy to get up and not get stuck.
Modern. Admiralty-type anchor In miniature are also found, but they are less convenient for transportation in an inflatable boat due to protruding parts that can damage cylinders if stowed carelessly.
- 🐙 Cat: It is universal, foldable, but collects grass.
- 🧱 Iron: It is ideal for silt, does not get stuck, but requires more mass.
- 🪨 Pyramid: It holds well on a rocky bottom due to the shape.
- 🌿 Row: specific shape for overgrown water bodies.
Features of anchorage and falt
It's not enough to just choose the right size anchor for a PVC boat, you also need to organize the anchor system correctly. The key element here is the phala, the cable that connects the anchor and the boat. The use of a thin line or a capron cord is strongly discouraged: they cut hands when sampling and poorly absorb jerks.
The optimum diameter of the tile is 8-10 mm. The material must be buoyant (e.g. polypropylene) so that when the end breaks or is lost, it does not go to the bottom, and it also has minimal extensibility. The length of the tile should exceed the depth at the parking lot by 3-4 times, which provides an angle of attack at which the legs of the anchor crash into the ground, and not pull upward.
For ease of storage, the fags are wound on a special coil or use an anchor container. It is important to exclude the possibility of entanglement of the cable, since in an emergency situation (for example, when a motorboat approaches), every second counts.
⚠️ Attention: When anchored on the current, never stand across the stream. The boat turns its nose against the current, and if the anchor cable is tied to the nose, it creates a stable position.
☑️ Checking the anchor system
Security and emergency situations
Operating an inflatable vessel requires increased attention to safety; anchoring at night or in fog should be accompanied by flares for other vessels to notice. The lightness of the PVC boat makes it vulnerable to ramming by larger craft.
Special attention is required by the procedure of lifting the anchor. If the load is stuck (for example, the cat's paws are stuck between the stones), do not try to pull as hard as you can while standing in the boat. This can lead to loss of balance and falling overboard. It is better to wrap the phala around the transom ditch or duck and slowly move on the anchor, using the thrust of the motor or oar to thrust it from a place vertically upward.
Always have a backup option on board, which can be a second, lighter anchor iron or even a bag of stones drawn ashore, and in case of loss of main cargo, a backup option will allow you to wait for help or safely reach the shore.
What if the anchor does not rise?
If the anchor is stuck, try to get as close as possible to it and choose the tilt vertically. If it doesn't work, tie the tilt to the transom, slowly back down to create tension, and pull sharply (only if you are sure of the strength of the mounts!). In extreme cases, leave the buoy in place of the hook and ask for help.
Frequently Asked Questions (FAQ)
Can a bunch of stones or bricks be used instead of an anchor?
You can use it, but it's uncomfortable and unsafe. Bricks have sharp edges that can damage boat cylinders when loaded. Rocks are often irregularly shaped and can slip out. A specialized anchor has a smooth surface and a reliable mounting of the phalo.
How long should an anchor cable be for a depth of 3 meters?
For an anchor to work effectively, the cable should be 3-4 depths; for 3 meters of depth, the minimum length of the fail is 9 meters, optimally 12-15 meters, which will allow the anchor to lie on the bottom and burrow properly.
Do I need an anchor for a boat 2.2 meters long?
Yes, even for a small boat, an anchor is necessary, especially when fishing in windy weather or on the current. For this length, it is enough to weigh 2-2.5 kg. Without an anchor, the boat will carry, which will make fishing impossible.
Why doesn't the cat anchor hold on the sand?
The cat's paws are shaped like hooks that cling to bumps on a hard or rocky bottom; they have nothing to catch on to on flat sand, and they just slide across the surface; for sand, it's better to use broad-legged anchors (admiralty) or iron cargoes.
The main criterion of choice is not the maximum weight, but the balance between the retention force, ease of storage and safety of lifting from the inflatable board.