Choosing the first or new boat is always a responsible step for any boater who values reliability and availability. North 400 For many years, it has been a sustainable niche in the low-cost metal boat segment, offering a time-tested design, and many fishermen and hunters choose this option because of its simplicity and maintainability in the field.
In this article, we will discuss in detail all aspects of the operation of this model, from the features of the welded body to the nuances of the engine installation. aluminum-alloy The D16AT used in manufacturing is considered one of the best in our latitudes, and we will also touch on the topic of modernization, since factory equipment often requires improvements for a comfortable rest.
Despite its apparent simplicity, this boat has its hidden features, which are worth knowing before buying. constructional It will help to avoid typical errors in operation and extend the life of the vessel.
Structural features of the body and materials
The basis of the durability of any boat is the material from which it is made. North 400 Aluminum sheet of the D16AT brand is used, the thickness of which is 2 mm. jet-alloy It has high tensile strength and excellent corrosion resistance, which is critical for use in fresh and salt water.
The case is assembled using argon-arc welding technology, which ensures that the seams are tight without the use of rivets or bolt joints. The absence of unnecessary holes in the bottom and sides minimizes the risk of leakage in the future. weld Require periodic inspection, especially after severe contact with the shore or rocks.
The bottom of the boat has rounded contours, which has a positive effect on the driving performance in choppy conditions, this shape allows the vessel to more easily “cut” the wave, rather than hitting it with a flat bottom, as it happens with flat-bottomers.
⚠️ Attention: Despite the high strength of the D16AT alloy, it is not recommended to moor to concrete berths without the use of shock absorbing faucets. A pinpoint impact on a concrete angle can leave a dent that is difficult to straighten without a special tool.
An important element of the design is the reinforced transom, which is made of a thicker sheet of aluminum and reinforced by internal bulkheads, which allows you to install engines up to 15 hp without the risk of deformation. This makes the boat versatile for both two-stroke and two-stroke installations. four-stroke.
Why the D16AT?
D16AT (duraluminium) aluminum alloy is significantly stronger than normal food aluminum (AMG) and is not as soft, so scratches and dents are less common, but more difficult to process.
Performance and seaworthiness
Dimensions of the model North 400 allow you to comfortably accommodate on board two, and if necessary, three adults. the length of the hull is 396 cm, and the width of the midfield is 154 cm Such dimensions provide sufficient interior space for placing gear, anchor and a small amount of tourist-equipment.
The boat's load capacity is stated by the manufacturer to be 400 kg, which includes the weight of passengers, engine, fuel and equipment. The real payload at which the boat maintains good driving performance is about 250-300 kg. Exceeding this limit will lead to strong stern differentiation and reduced speed.
As for seaworthiness, the boat feels confident on rivers with calm currents, lakes and reservoirs. The height of the board at 50 cm provides good protection against splashes, but to go out into the open water area in the wind of more than 5-7 m / s should be with caution. sidewind.
The steerability of the vessel depends on the engine and the position of the center of gravity. When properly loaded, the boat willingly goes to planing even with one passenger. pendant Or transom plates.
Comfort and internal arrangement of the cockpit
Basic equipment of the boat North 400 It is often a bare case with two cans (seats), but the space inside allows for many options for comfort, standard cans are made of plywood or aluminum and may not be very convenient for long transitions.
Owners often upgrade the cockpit by placing soft seats on rotary seats, which not only increases comfort, but also allows you to change the seat depending on the task: fishing, motor control or rest. pump-operate With an elongated handle, it can also be a useful option.
- 🛶 Installing soft pads on the banks significantly reduces back fatigue.
- 🎣 Installation of the knobs under the seats frees up space for storing things.
- 🔦 Mounting the rods under the rods simplifies the process of trolling or catching in the wiring.
Special attention should be paid to the organization of storage space. Aluminum housing has no built-in hazelnuts, so all equipment is usually on the floor or on banks. Homemade drawers fixed on the bottom solve the problem of chaos and prevent things from moving during the course.
Use an anti-slip coating (mats or special paint) on the floor of the boat. Smooth aluminum becomes very slippery when wet, which can lead to injuries when abruptly maneuvering or going ashore.
Compatibility with outboard motors
Train boat North 400 It is designed to accommodate engines up to 15 hp and weighing up to 45-50 kg. This is the optimal range, allowing speeds up to 25-30 km / h with one passenger. Exceeding the recommended power can lead to overloading of the stern and reduced navigation safety.
The most popular choice for this model are two-stroke engines with a capacity of 9.9 hp. with the possibility of software flashing up to 15 hp Such engines provide an excellent balance between traction, fuel consumption and weight. Four-stroke analogues will be heavier, which will affect the weight of the engine. load capacity boats.
When installing the motor, it is important to choose the right lower unit. North 400 Short leg (S) motors are usually suitable, although long leg (L) can also be used with some modifications or when the boat is fully loaded. Incorrectly entrenched propeller will lead to cavitation or, conversely, to excessive resistance.
| Motor type | Power (hp) | Weight (kg) | Recommendation |
|---|---|---|---|
| two-stroke | 9.9 - 15 | 27 - 34 | The best choice |
| four-stroke | 9.9 - 15 | 38 - 45 | For economical cruising |
| Electric motor | 1.0 - 2.0 kW | 8 - 12 | For quiet fishing |
And remember to keep the motor fixed, and the use of quality rods and safety rope is a must, and the aluminum transom, although reinforced, does not like constant vibrations from a poorly attached engine, which can lead to a constant vibration of a poorly fixed engine. fatigue metal in the attachment areas.
☑️ Check before installing the engine
Transport and storage of the boat
One of the key advantages of the model North 400 It is possible to transport on a passenger trailer or even on the roof of the car (if there are reinforced arcs), the weight of the boat in the basic configuration is about 70-80 kg, which allows you to load it with two people without the use of complex equipment.
When transported on a trailer, you need to use padding or keel rollers to distribute the load on the body. Point support on a sharp angle can lead to deformation of the bottom during prolonged parking or shaking on the road. stop-point along the entire length of the keel.
Keeping a boat in winter requires no special conditions, as aluminum is not afraid of frost and moisture. However, it is recommended to turn the boat upside down or cover it with an awning so that snow and water do not accumulate inside. The constant presence of water in the hold can lead to oxidation of welds and the formation of plaque.
⚠️ Warning: When stored outside under an awning, be sure to provide ventilation of the interior space. Condensate formed during temperature changes should be able to evaporate, otherwise the inside will be constantly damp.
For ease of movement on hard ground (concrete, asphalt), many owners install special runners on the bottom or use transport wheels. Aluminum is soft enough, and dragging a boat on stones or asphalt will quickly lead to the appearance of a boat. deep-stripped and scuffles.
Recommendations for tuning and refinements
Buying a boat North 400 The basic version is functional, but far from ideal comfort. The first step in tuning is usually the installation of a windshield, a simple device that greatly enhances comfort against the wind and protects against oncoming spray.
The second important thing is to install an anchor system, and the anchor fastuct on the nose and winch allows you to anchor quickly and safely without having to twist the rope on your hands. safety and convenience.
- ⚓ Installing an anchor box in the nose unloads the cockpit.
- 💡 Installation of running lights on removable racks is mandatory for night movements.
- 🧱 Installing an additional battery box fixes the battery and protects it.
Also worth considering is the possibility of installing inflatable tubes (BB) on the sides, which not only increase stability and unsinkability, but also serve as an excellent protection against impacts on the dock or other boats, which makes a rigid "iron" in a more comfortable and safe vessel.
The North 400’s tuning can cost up to 50% of its original price, but it drastically changes the level of comfort and safety on the water.
Frequently Asked Questions (FAQ)
What is the real speed of the boat North 400 with a 10 hp engine?
With one adult passenger and engine 9.9 hp (15 hp) speed on planing is about 25-28 km / h With two passengers, the speed will drop to 20-22 km / h. Much depends on the state of the bottom (fouling) and engine settings.
Do I need to paint the North 400?
Aluminum D16AT does not require painting to protect against corrosion, as the oxide film itself protects the metal. However, painting (for example, epoxy paints) improves the appearance, reduces algae fouling and facilitates washing.
Can I put a 400 engine 20 hp on the North?
The transom will technically hold up and the boat will go faster, but this violates the GIMS registration rules for this model (if registered), and the risk of tipping over on corners increases dramatically due to the high center of gravity and light hull.
How many people can fit in the boat as much as possible?
Technically, you can put 3-4 people in the boat, but according to passport and security regulations, the maximum number of passengers is 3, and it is comfortable to be accommodated together with a full set of equipment.