Which boat to go to sea: the choice of body and engine

Going to the open sea is always a risk that requires the utmost preparation and the right choice of boat. Many small boat owners mistakenly believe that any boat that can carry a person on calm water is suitable for sea trips. However, the sea element dictates its own harsh conditions: wave height, salt water, wind and distance from the shore create extreme stress on the hull and equipment. Before thinking about the route, you need to clearly understand the technical limitations of your vessel.

The main safety criterion is categoryalityIt's a hull design, hull height and buoyancy reserve, and if you're planning to cross large areas of water or go outside of bays, a standard flat-bottom or low-side inflatable boat can become a trap. Water moves differently in the sea than it does in the river, and even a small wave can flip a vessel that's not designed for these conditions.

In this article, we will discuss which types of boats are really suitable for sea travel and which are best left for quiet lakes. We will look at design features, engine requirements and legal aspects so that your entry into the water does not end in tragedy.

Criteria for the suitability of a boat for sea navigation

The first thing to pay attention to is heightFor the sea, the minimum permissible value is 60-70 cm from the lowest point of the deck (dadewood). If the board is lower, any side wave risks overlapping through it, which will lead to the filling of the cockpit with water and potential rollover. Low-side boats are suitable exclusively for calm weather in closed waters.

The second most important parameter is cockpitIn marine conditions, a boat must be able to automatically remove water that has entered without the help of buckets or buckets, which are achieved by special scuppers in the stern, which open under the influence of water pressure when the boat is on the move, or are forcibly pumped out by pumps in the parking lot, the absence of such a system makes going to sea extremely dangerous.

⚠️ Attention: Never rely on pumps alone when going to sea. If electrical equipment fails in a storm, having self-emitting niches may be the only chance to stay afloat.

The stock is critically important. floatabilityA boat must remain afloat even when the hull is completely flooded, provided by foam blocks built into the sides and deck, or sealed compartments. For inflatable boats, this requirement is implemented through the presence of several independent cylinders, each of which provides positive buoyancy.

Types of hulls: from flat-bottom to keel vessels

The design of the bottom directly affects the behavior of the boat on the wave.flat bottom) provides excellent stability in the parking lot and shallow water, but on the sea wave such a vessel begins to prowl dangerously and receive severe blows.

The most popular for small craft type hulls V-shaped and deep-vThey allow the boat to cut the wave, providing a soft ride and predictable control. Deep V (with an angle of kileadness of more than 20 degrees) is ideal for a large wave, but requires a powerful motor to get on plane. lease - ledges on the bottom, which help to get off the water faster.

Catamarans are also worth mentioning: two-hull vessels have excellent stability and a wide cockpit, which makes them comfortable for sea fishing, but their sailing and large width require caution when mooring and steering in narrowness.

When choosing a boat, consider not only the shape of the bottom, but also the material.fiberglass) It's good at quenching vibration, but when it hits a hard object, it can crack, aluminum is stronger at crumpling, but it's noisier and colder, and each material requires a different approach to salt water.

PVC inflatable boats: limitations and opportunities

Many people ask if it is possible to go to sea in an inflatable PVC boat. The answer is: it is possible, but with serious restrictions. float-bottom (BDD) or hard fiberglass/aluminum bottom, because the soft bottom wears out quickly against the shell and does not hold shape on the wave. keel - inflatable or wooden, which runs along the entire bottom.

The keel has two functions: it protects the bottom from punctures and provides stability, preventing the boat from prowling in the wind. Without the keel, an inflatable boat on a sea wave becomes an uncontrollable "tortilla" that will be turned side to wave, which is fraught with tipping. squirt-boardreinforced with fiberglass or metal, capable of withstanding the vibration of the motor.

• 🌊 Cylinders: For the sea, choose boats with a diameter of cylinders of at least 38-40 cm for better germination on the wave.
• ⚓ Fixtures: Make sure that the rings and oar holders are made of stainless steel, not conventional galvanized metal.
• 🛡️ Defense: The presence of a hinge beam around the perimeter of the boat is critical to protect against impacts on the side of another boat or pier.

It's worth remembering that an inflatable boat is more susceptible to wind demolition because of the high sailing capacity of the cylinders, and in strong side winds it's harder to operate than a hard-hull boat, so for regular sea exits, inflatable vessels are more suitable as tenders or for going out in calm weather near the shore.

Why is the color of a boat important to the sea?

The bright color of the boat (lettuce, orange, bright blue) is critical for safety. In the case of a capsizing or loss of a person overboard, it is almost impossible to notice a gray or camouflaged boat against the water and sky.

Requirements for outboard motors for sea water

Salt water is an aggressive environment that quickly destroys ordinary metals. corrosion-proofingManufacturers often label such models with the prefix "Salt Water Series" or similar, the main difference is the use of stainless steel for fasteners, exhaust systems and lower unit, as well as special anodizing aluminum parts.

The most important element of protection is the system. zinc anodesThese are consumable plates that are mounted on the lower unit and inside the cooling system, and they take over electrochemical corrosion, breaking down instead of expensive engine parts, and boat owners need to check the condition of the anodes before each exit and change them as they wear out.

Anode testing:
Visual inspection for the presence of deep corrosive pits.
2 If the anode has lost more than 50% of its mass, replacement is required.
3. Do not paint the anodes with paint, or they will not work.

Also worth noting is the water intake system, which marine motors often have additional filter separators to protect the impeller pump from the ingress of algae and debris, which is common in the coastal zone, and the lack of such protection can lead to engine overheating at the most inopportune time.

Navigation equipment and crew safety

You can't go out to sea without a minimum of navigational equipment. GPS-navigator On the high seas, especially in fog or when you lose sight of the shore, only the coordinates will help you get home. A mobile phone as a navigator is a bad idea, because it can run out or lose signal.

Communications are the second pilar of security: Maritime radio (VHF range) allows you to communicate with shore services or other vessels from up to 10-15 miles away, while mobile communication is unstable. VHF radio It is often a requirement for the registration of a sea passage with port authorities.

Equipment	Appointment	Status
GPS-navigator	Determination of coordinates and track	Sure.
Chain anchor	Stopping the boat in drift	Sure.
Life jackets.	Individual salvation	For every man
Falshfires	Disaster alarms	Recommended
cerpak	Hand-draining	Sure.

Remember personal protective equipment. Life jackets should be worn on all passengers, not just lying in a flunduk. In cold water, the count goes for minutes, and time searching for a vest can be wasted. It is also recommended to have a linen (the end of Alexandrov) on board to help the fallen overboard.

GIMS legislative and regulatory framework

In Russia, the sea exit on small craft is regulated Code of Inland Water Transport In order to enter sea waters, a boat must be registered, numbered and technically inspected, and the categories of navigation (inland waters, coastal navigation) are indicated on the boat's ticket, and their violation entails fines and risk to life.

For most amateur boats without special equipment (radiolocation, professional communication), exit is allowed within sight of the shore or at a certain distance (usually up to 3 miles, but depends on the class of the vessel), leaving beyond the established boundaries without appropriate equipment and crew training is prohibited.

⚠️ Attention: Lack of a boat's ticket or rights to operate a small court when going to sea entails fines and detention of the vessel.

Weather restrictions also exist, with GIMS having the power to issue storm warnings and ban all small craft from entering the sea, and ignoring such warnings is considered a gross violation of safety regulations, and the weather forecast and official port surveillance reports must be consulted before each exit.

FAQ: Frequently Asked Questions About Seaboats

Can I go to sea without a motor (on paddles)?

Technically, you can, if the boat design and the weather permit, but GIMS strictly regulates the distance from the shore for rowing vessels (usually no more than 300 meters), in the sea without a motor you become a toy in the hands of wind and current, so this exit is considered extremely risky and is only allowed in complete calm near the shore.

What is the minimum size of a boat for the sea?

The recommended minimum length of a seagoing boat is 3.5-4 meters. Smaller vessels (2.7-3 meters) have a low board height and low stability, making them unsuitable even for a small wave. The longer the length, the softer the ride and the greater the buoyancy margin.

Should I wash my motor with fresh water after the sea?

Yes, this is critical. After each release into the salt water, you need to flush the cooling system with fresh water (using special ears or barrels) and thoroughly wash the case, and the salt crystallizes and breaks down metal and plastic even faster than the rust itself.

What wave is considered dangerous for an inflatable boat?

For inflatable boats up to 3.5 meters in length, a wave higher than 0.5-0.7 meters is considered dangerous. At this height, the boat begins to lose controllability, and the risk of getting a nose blow in the wave and flipping increases many times. For rigid hulls with a deep V, this threshold is higher - about 1-1.2 meters.

Do you have to have a sonar to go to sea?

The crew does not require sounder navigation, unlike GPS, but it is needed for fishing, and the main safety requirement is to have up-to-date navigation maps with depths so as not to run aground or run into underwater obstacles.