For someone who is just starting out in water-powered technology, basic concepts of navigation can seem confusing. feedIt's often the first minute of a swimmer's experience, especially when the instructor gives commands and the fuss keeps you from concentrating. Understanding the geometry of a boat is not just a theoretical whim, it's a matter of safety and effective management.
If you look at the boat from above, the stern is the back of the boat, opposite the nose, and that's where the outboard motor is most often attached, and from there you control traffic. turret (vertical plane on the stern) experiences maximum loads during planing.
Unlike a car where the driver is always looking forward, the boat's orientation is constantly changing depending on the direction of drift or wind, so the concepts of "front" and "back" are replaced by "forward" and "stern", which allows the crew to instantly understand each other, regardless of which direction the hull is facing relative to the shore.
The main design elements of the swimming apparatus
To be able to navigate clearly, you need to know not only where the feed is, but also what the other parts of the body are called. diameterAnything on the left side of the person looking towards the nose is called the left side, and on the right side is called the right side.
The bow of the vessel is designed to separate the water mass and ensure the buoyancy of the front, depending on the type of boat, whether it is inflatable. PVC Or a metallic "cossack" nose shape can be very different. pointed-noseIt allows you to easily ascend the wave and reduces the resistance of water.
The aft, or just the feed, is structurally different from the nasal transom, which is a rigid vertical or sloping slab that supports the attachments. squirrel for anchor, ducks for mooring and sometimes kunduks for storing equipment.
⚠️ Warning: Never overload the transom plate with extra weight unless designed. Shifting the center of gravity on the stern can cause the boat to prowl or even drown water overboard in choppy conditions.
The sides connect the bow and the stern to form a closed circuit. The height of the side determines the stability and ability of the vessel to hold the wave. In inflatable boats, the sides often consist of several inflatable tubes, which gives them additional buoyancy and safety in the event of a puncture of one of the compartments.
How to visually determine the feed and nose
You can tell where the feed is from a few specifications that are obvious to even an inexperienced driver. First of all, look at the shape of the body in profile. The nose is usually raised and pointed to cut water, whereas the feed often has a flatter or vertical cut line for the engine to install.
The second sign is that there's attachments, and if you have a motor on the boat, it's always attached to the stern, and even if the motor is removed, there's still some mounts, rods, or special pads on the transom. anchor Or a duck to fasten a faline.
- 🚣♂️ The shape of the body: the nose is pointed and raised up, the feed has a cut or rounded shape.
- 🔧 Fastenings: The presence of a transom plate for the motor indicates the aft part.
- ⚓ Anchor device: Locks and dips for anchor are always located in the bow.
- 🌊 Water traces: when moving, the nose cuts the water, creating minimal excitement, and a kilvater trail remains behind the stern.
On symmetrical boats, such as some rowing models or old wooden rafts, it is more difficult to identify the sides, in which cases the sides are determined by the location of the control or by what part is considered the "front" according to the designer's design. asymmetry It's the norm.
Tranza: heart of the aft
And when you talk about the stern, you can't ignore the transom, because for most small craft, it's a critical element. The trawler is a transom bulkhead that senses the propeller's pull and transmits it to the hull. It's very strong, and it's very strong, and it's very strong, and it's very strong, and it's very strong, and it's very strong, and it's going to get out. gelling Or it will just swim slowly, burrowing its nose.
The material of the transom depends on the type of boat. In metal boats, it is a continuation of the hull, often reinforced with frames. PVC The transom can be cut (hardly pasted into cylinders) or hinged. The twig is considered more reliable for powerful motors, since it is rigidly connected to inflated cylinders, forming a single power structure.
The tilt angle of the transom is another important parameter, and it has to be in line with the engine manufacturer's recommendation that the lower unit be submerged at the right angle, and the wrong different at the stern will lead to cavitation of the propeller, or, conversely, to excessive water resistance.
Why does the tranny rot in wooden boats?
The wood of the transom is in constant contact with water and is subjected to vibrations. Without proper antiseptic treatment and regular painting, the water penetrates into microcracks, causing rot that destroys the power structure of the feed from the inside.
When choosing a boat, always check the condition of the aft. Cracks in fiberglass, bloating paint on metal or plywood in PVC are all signs that sink-board It requires repair or replacement, and ignoring these defects can cause the engine to tear off at full speed.
Navigation lights and their location
The rules of navigation are very strict about what lights and where to burn on a boat at night, and understanding this system helps not only to not break the rules, but also to read the signals of other participants in the movement.
The white top light is set in a diametrical plane, but its lighting sector is directed backwards, the aft light is also white, but it is located below the top light and shines strictly in the 135-degree sector, illuminating the space behind the stern. size and the direction of travel.
| Type of fire | Colour | Location. | Lighting sector |
|---|---|---|---|
| Nose (top) | White | On mast/stand | 225° (forward) |
| Onboard (left) | Red. | Left side | 112.5° |
| Onboard (right) | Green. | Starboard. | 112.5° |
| Aft-handed | White | Stern. | 135° (back) |
The lack of proper lighting makes the boat invisible to other boatmasters at night, especially small boats, which are difficult to see on radar. battery and lamps are a mandatory requirement of GIMS.
Mooring: nose or stern?
One of the most common questions for beginners is, how do you approach a pier? The answer depends on the conditions, the type of boat and the purpose of the berth. There are two main ways: a nose to the shore (or pier) and a stern, each with its own advantages and requires a certain skill.
The stern approach to the pier is often used if you want to quickly drop off passengers or load heavy equipment without getting into the water. It is also convenient if the wind or current blows from the shore. mooring-point And the assistant's hands.
☑️ Aft mooring algorithm
Nose mooring is more traditional for larger boats, but it is less common on smaller boats because it requires a jump from the nose, which can be dangerous on slippery or high piers, but it is good for landing on gentle shore when you need to pull the boat out on land.
⚠️ Warning: When mooring, never wind the end on your arm! A sudden jerk of a boat under the influence of a wave or wind can lead to serious injury or loss of a limb.
It's important to remember that the screw creates a backward flow of water, and when you're stern forward, you're working the forward screw to pull the stern to the pier, but you have to be careful not to hit the stern. turret concrete or piles.
Effect of loading on feed position
Boat weight distribution is a science that every motorist learns through experience, and if you load the stern too deeply, your nose will stick upwards, a position called "stern differentiation," which is highly undesirable for stability.
When the stern is overloaded (for example, there are passengers sitting there or there is a heavy anchor in the trunk), the boat begins to prowl, gets worse for planing and consumes more fuel. The engine, being too deep in the water, can begin to “grab” air or, conversely, work in excessive immersion mode, which leads to overheating.
- 🎣 Distribute the weight of passengers evenly along the cockpit, avoiding crowds on the stern.
- 🛢️ Heavy loads (fuel tanks, anchors) are placed closer to the diametric plane and the center of gravity.
- 📉 Keep an eye on the waterline: the feed should not be significantly below the design level.
If the boat is very adrift when sliding, try moving one passenger closer to the nose or moving the fuel tank forward. This often aligns the boat and improves the ride.
The ideal position is when the boat is lying flat on the water or with minimal nose different when entering mode, which ensures better visibility, safety and economy, and it should become a habit to regularly check the boat's landing before going out on the water.
Proper distribution of cargo is key to a safe and economical voyage, and overloaded stern makes the boat unstable and dangerous on the waves.
Frequently Asked Questions (FAQ)
Can I put the engine on the boat instead of on the stern?
Mounting the motor on board is possible only in the presence of a special remote bracket (outriger), which is structurally a continuation of the transom. Just attach the motor to the cylinder or metal board can not - this will lead to depressurization or destruction of the board due to vibration and traction.
What to do if the boat's snail is rotten or cracked?
The operation of a boat with a damaged transom is strictly prohibited. In inflatable boats, the transom can be replaced by contacting a service center for a new plate pasting. Metal boats require welding repairs with reinforcement of the structure, ignoring the problem threatens to lose the engine on the water.
How to wash the food after fishing?
After each foray, fresh water should be washed off salt, mud and sand, especially from under the transhove. Use a soft brush and special care products. PVC The purity of the feed prolongs the life of anti-fouling coatings and prevents corrosion of fasteners.
Why does the boat keep going to the side in the wind?
This phenomenon is called sailing. Because the bow of a boat usually has a large surface area above the water and a pointed shape, the wind often blows it down. rumpelae or gas.
Where is the "Dadewood" on the boat?
lower unit is the bottom of the outboard motor, submerged in water, which contains the shaft, the screw and the cooling system, and it's located at the stern, below the transom, and it's important to make sure that the lower unit is immersed deep enough to draw water, but not too deep so as not to increase resistance.