Buying a basic model of AMG (aluminum-magnesium) is just the first step in the world of water. Standard trims are often a utilitarian trough with two cans and a minimum of mounts, which is not suitable for every owner. tuning This is a must for those who value comfort and safety on the water.
Modernization allows you to turn a simple flat-bottom or keel boat into a full-fledged fishing projectile or family boat. Unlike plastic, aluminum has unique properties: it is strong, lightweight and, most importantly, allows you to easily drill holes and weld new elements without the risk of stratification of the hull.
In this article, we will explore the key areas of improvement, from the installation of full flooring and sound insulation to the installation of complex electronics, you will learn how to choose the right materials to avoid weighting the boat, and what solutions really work in harsh operating conditions. It is critical to use insulating pads when aluminium comes into contact with other metals to avoid galvanic vapor.
Installation of a full floor and sound insulation of the body
The first thing that the owner of a new boat faces is the rumble of waves on the bottom and the cold coming from metal. The removable cans do not provide normal footholds or protection from the cold. Creating a full-fledged paiola (false floor) solves several problems at once: increases the rigidity of the structure, improves the weight distribution of passengers and creates an air cushion.
The most common use for the project is plywood of the PVF (waterproof), lacquer or epoxy resin, or composite materials. Aluminum sheet with a thickness of 2-3 mm is also popular, but it is heavier and worse retains heat. The optimal scheme of the "pie" of the floor includes a frame of timber or profile, a layer of insulation (foam or foamed polyethylene) and a finishing.
⚠️ Attention: Never use conventional building plywood without carefully sealing the ends and surfaces, and in constant humidity and salt water, it will swell and lose strength in one season.
Soundproofing is the second stage of comfort. Aluminum resonates very well, turning wave shocks into deafening noise. To combat this, they use bitumen-polymer vibroisolators (vibroplastics) that are glued to the bottom and sides from the inside. On top, they often put a layer of noise-absorbing material with a wavy surface.
- 🛠️ Tools: Electric jigsaw, screwdriver, building hair dryer for the installation of vibration insulation.
- 📏 Materials: Plywood 10-12 mm, timber 40x40 mm, vibroisolating mastic, sealant.
- ⚓ Fastening: Stainless screws with a press washer, so as not to damage the plywood coating.
Secret to a quiet boat
Why is it not enough?: Many beginners only glue vibroplastics to wait for silence. However, vibration insulation only reduces the resonance of the metal. To really reduce noise, you need a pie: metal -> vibroplastics -> foam (heat and stiffness) -> plywood -> linoleum or carpet. Only this multilayeredness extinguishes the sound wave.
Organization of space and installation of runduks
In a small boat, every centimeter counts, chaoticly scattered anchors, life jackets and fishing boxes not only take up space, but also disrupt the centering of the vessel. tuning involves the installation of stationary or removable handukes (storage boxes), which simultaneously serve as seats.
Runduks should be placed in the bow, where there is usually free space, and along the sides. The design should be sealed so that in the event of a boat flip, the box works as an additional buoyancy unit. To do this, the covers are equipped with seals, and the body itself is made of unsinkable materials or sealed plastic.
The aluminum side makes it easy to mount sleds or return parts of locks. quick-removal allows you to dismantle the seats for washing the boat or transporting large-sized cargo, if necessary.
| A type of runduk | Case material | Advantages | Deficiencies |
|---|---|---|---|
| Stationary | Aluminum/Plastic glass | Maximum strength, not shifting | It is more difficult to wash the boat, reduces the volume |
| Removable | Plastic (HDPE) | Mobility, easy to remove for cleaning | Requires reliable fixtures on the floor |
| Inflatable | PVC | Ease, compactness during storage | Less stiffness, risk of puncture |
☑️ Runduk planning
Electrification and installation of navigation equipment
Modern fishing and navigation are impossible without electronics. Sonars, GPS navigators, running lights and cabin lights require reliable power systems. Unlike cars, there is no generator in the boat (except for the motor), so the basis becomes a battery pack and proper wire wiring.
To connect equipment, a separate deep discharge battery (Deep Cycle) is required, which differs from a starting car battery with the ability to give off energy for a long time in low currents, wiring should be performed in corrugated tubes with markings, and all connections should be carefully isolated and protected from moisture.
The aluminium case also has its own features: it allows you to use suction brackets (on smooth surfaces) or threaded mounts. However, when drilling holes under wires, be sure to use a sealant and special cable inputs to prevent water from entering the housing.
- 🔋 Battery: Gel (GEL) or AGM, capacity from 75 Ah and above.
- 🔌 Switching: Copper wire cross-section of at least 4 mm2 to supply the sonar.
- 🛡️ Defense: An automatic safety lock at the power supply entrance is mandatory.
⚠️ Attention: Do not run wires along the sharp edges of the frames or the transom without additional protection. Vibration on the water will quickly outweigh the insulation, which will lead to a short circuit and a possible fire.
Modernization of the transom and installation of the motor
The trans is a maximum load zone, and even if the standard transom looks reliable, it is never superfluous, especially when you install powerful motors. Often, owners install a second transom stainless steel or reinforced plastic slab to evenly distribute the pressure from the engine rods.
An important element of the tuning is the installation of a hydrofoil on a lower unit motor, and this small plastic plate, attached to an anti-cavitational woven, stabilizes the boat's course, eliminates yaw and allows it to go into sleeving faster. For flat-bottomed aluminum boats, this is almost a mandatory improvement.
It's also worth considering the possibility of a squirrel wheel, which allows one person to easily pull the boat ashore and drag it back into the water, which is especially true on gentle beaches or rocky slopes, and it's attached directly to the transom, and it doesn't interfere with movement when it's up.
To protect the engine and propeller from impacts to the bottom (which often happens in shallow water), many people install additional protection, called a "ski" or a keelson for an outboard motor, which requires professional welding, but saves an expensive screw from breaking.
Installation of the transom wheel should be made so that in the lowered position the axis of the wheel is below the keel line, but does not interfere with the operation of the motor.
Protective awnings and running shelters
An aluminum boat, especially an open boat, exposes the crew to the sun, rain and wind, and installing an awning is not only a matter of comfort, but also a matter of safety, since prolonged exposure to the scorching sun on the water can cause heat stroke.
There are several types of shelters: running awnings (protect against rain and wind when moving), spider awnings (stationary, for parking) and combined versions. The frame is usually made of duraluminium pipes that are easily connected by fittings. The fabric should be dense, with water-repellent impregnation and UV protection (Oxford, tarpalin).
When designing a chassis, it is important to provide a view for the steering wheel and the ability to control the engine. Often, a transparent PVC film window is made in the front, and the sides are mounted through regular liner racks or special welded hinges.
Anchor system and additional accessories
A standard anchor, complete with a boat, often proves too light for wind and current conditions. Anchor tuning begins with replacing the anchor itself with a heavier or more efficient design (such as Hall or Danforth anchor) and lengthening the anchor rope.
For ease of use, you have an anchor rail in the bow, and this device allows you to lift the anchor without staining your hands in mud and mud, and it fixes the rope. When combined with an anchor winch (manual or electric), the anchoring process becomes a matter of one minute.
And the little things that make you feel comfortable, like fishing rod holders, cup holders, hooks for clothes and bags, all of which are easily attached to the aluminum side with rivets or screws, and the main thing is not to overdo it, so as not to turn the boat into a Christmas tree, losing streamlinedness and aesthetics.
- ⚓ Anchor: The weight of the anchor should be approximately 1/10 of the displacement of the boat.
- 🧶 Row: Use a combined rope (chain + rope) for better fit to the ground.
- 🎣 Holders: It is better to choose rotary models of stainless steel.
Competent tuning does not change the purpose of the boat, but expands its capabilities, making staying on the water safe and comfortable in any weather.
FAQ: Frequently Asked Questions about Tuning
Can you weld new elements directly to the hull of the boat?
Yes, aluminum is great for argon welding. But it's something that a professional should do. Improper welding can lead to metal release (loss of strength) or burnout. For lightweight structures (rod holders), it's better to use a metal or rivet sealant.
How to protect the boat from algae fouling after tuning?
After any welding or installation of elements below the waterline, the antifouling coating should be restored. Use special unfouling paints compatible with aluminum alloys (not containing copper to avoid corrosion).
Should I make a full interior trim with plastic?
Full plastic skin (like coated boat plywood) makes the boat warmer and quieter, but it increases weight significantly. For small boats with low-power engines, it can critically slow down speed. Weigh the comfort-to-load ratio.
Which sealant is best used for aluminum?
The best choice is polyurethane sealants (for example, Sikaflex) or special shipbuilding sealants based on MS polymers. They retain elasticity, are not afraid of ultraviolet light and perfectly adhesive to aluminum.
Do I need to register changes to the GIMS?
If the changes do not affect the basic design specifications (load capacity, passenger capacity, stability) and do not require a change in the type of vessel, registration of the changes is usually not required.