The classic boating classic known as Ladoga 2This simple yet robust design was originally designed as a versatile vessel for calm water bodies, but has proven to be very agile and resilient even under a little excitement. Unlike today's inflatable counterparts, the rigid hull provides safety and durability, and the ability to build independently makes this project attractive to home craftsmen.
Many owners are interested in the motor version, as it allows you to travel long distances without excessive physical effort. Tranza This boat is designed to be medium-powered, low-powered, low-powered, and cost-effective, and we'll go through the technical details you need to know before you start building or buy a used one.
The uniqueness of the project is its accessibility and maintainability. Ladoga 2 You don't need complex industrial equipment, a basic set of tools and quality materials, and we'll cover everything from the choice of wood to the final body painting.
Main technical specifications and dimensions
Before proceeding to a detailed review of the design, it is important to clearly understand what size and weight parameters you will work with. Ladoga 2 It belongs to the class of small rowing and motor-running boats, which imposes certain restrictions on its use, but also gives advantages in transportation.
The hull has a classic flat-bottomed shape with a slightly raised nose, which is typical for many projects of the time, and this geometry provides excellent stability in the parking lot and allows you to safely pull the boat to a gentle shore.
| Parameter | Meaning | Note |
|---|---|---|
| Full length | 4.50 m | No counting the attachments. |
| Midwidth | 1.40m | Maximum width of the shell |
| Height of board | 0.55 m m | Including the timber |
| Load capacity | 400 kg | Including crew and engine weight |
| Body weight | ~70-80 kg | Depends on the thickness of the skin. |
It is important to note that these values may vary slightly depending on the year of production of the drawings and materials used. Load capacity The 400 kg allows you to comfortably accommodate two adults with a full set of fishing equipment or a small fuel reserve, while maintaining sufficient buoyancy for safe stay on the water.
Design features of the body and bottom
Basis of reliability Ladoga 2 It's a power kit, and it's made of pre-made frames that are connected by longitudinal elements like keels, zygomatic stringers and side bars. keel It acts as the main carrier element that takes on loads when hitting the bottom.
The bottom sheets are folded into cross-links, which requires high precision in cutting and fitting. In the bow, the frames have a steeper rise in the sides, allowing for germination on the wave, and the feed is designed to minimize water resistance and provide a smooth exit from the planing when the motor is installed.
⚠️ Attention: When assembling the frame, it is critical to observe symmetry relative to the diametric plane, and even a few millimeters in the mid-spangout area will cause the boat to yaw on the course and difficulties in handling.
To strengthen the design, additional longitudinal redanes or splash-breakers are often used, which not only strengthen the bottom, but also improve driving performance. transom board It's made of the strongest material, because it's sensitive to the jet propulsion of the engine, and it's got to be at least 30-40 mm thick if you're in a wooden structure, or it's got to be the metal thickness in all-metal versions.
Do you need a Kilson?
The keelson is a longitudinal beam running over the flora (cross bulkheads) inside the boat. In Ladoga 2, it is desirable to increase longitudinal rigidity, especially if the boat is operated with a powerful motor or on hard ground, and it also serves as a comfortable support for the legs of the rower or passenger.
Selection of materials: plywood or metal
One of the big questions that a builder has to ask is the choice of the material on the skin. Ladoga 2 It's associated with wood and plywood, but there are metal modifications, and each has its own advantages and disadvantages that need to be weighed.
Plywood, especially aircraft brands BSB It's very strong and moisture-resistant, lighter than metal, easier to handle, and allows you to create complex contours without any special equipment, but it requires constant maintenance, regular painting and protection from rotting.
- 🌲 Plywood: availability, ease of repair, less weight, but requires careful waterproofing and is afraid of hitting stones.
- ⚙️ Duraluminum: high strength, durability, no rotting, but more difficult in welding / riveting and higher risk of getting a hole when hitting a fuel.
- 🛡️ Steel: maximum strength and cheapness, but high weight and susceptibility to corrosion, making the boat heavy to transport.
If you plan to use a boat in shallow water with a rocky bottom, metal plating may be preferable. If you choose plywood, use sheets at least 6-8 mm thick for the bottom and 4-6 mm for the sides. A critical condition for the durability of a plywood boat is the quality impregnation of olifa or epoxy soil of all wooden parts before assembly.
Use epoxy glue with added wood flour or special boat sealants to glue plywood elements. Conventional PVA or carpentry glue will not withstand constant contact with water.
Instructions for assembling the frame and covering
Construction process Ladoga 2 It requires a consistent approach and precision, and you always start by making the frames and assembling the slipway, the flat base on which you're going to build, and a mistake in the beginning can cost you the whole body to rework.
The assembly begins with the installation of a stem (forehead and afterstretch) and a keel on the slipway, then the frames are installed in their places, which are temporarily fixed with bends to preserve geometry, and then the longitudinal bonds are mounted that form the skeleton of the boats.
☑️ Stages of hull assembly
Sheathing is made from the keel to the sides; sheets of material (plywood or metal) are pressed against the set and attached with screws, rivets or welding; special attention is paid to the joints of the sheets - they must fall on the elements of the power kit (spangouts or stringers); all corners and conjugations are carefully misst.
After the completion of the skin, the stage of installing internal elements begins: cans (seats), decks (if provided), runduks. Banks. They must be securely fixed, as they also work as cross-set elements, cutting the sides.
⚠️ Attention: When using screws to fasten plywood, be sure to use galvanized or brass fasteners. Conventional steel will rust after one season, and the fasteners will have to be drilled, damaging the skin.
Installation of transoms and preparation for an outboard motor
Motor version Ladoga 2 The stern must be set strictly perpendicular to the bottom plane (or to the keeliness if the design requires it), and the transom is usually about 10-15 degrees, which is the standard for mounted motors.
To strengthen the slingboard, metal corners or additional wooden bars on the inside are often used, which prevents deformation under the vibration of the running engine, the height of the engine is adjusted so that the deadwell is in the water, but does not create undue resistance.
When designing, take into account the location lower unit In flat-bottomed boats, it is important that the propeller does not touch the bottom when driving in shallow water, but also that it is not raised too high to miss the air when cornering. The optimal depth of the propeller axis is 10-15 cm below the bottom line.
The quality of the transom plant directly affects safety, and a weak transom may not withstand the engine's thrust, leading to engine tear-off and loss of control of the boat.
Waterproofing, painting and final finishing
The final step is to protect the hull from water, and for wooden and plywood boats, this is the most important thing, the traditional method is to impregnate hot olfide in several layers, followed by painting with oil or alkyd enamel, and the current approach involves the use of epoxy resins and glass canvas.
The glass-panel technology, called epoxy glass, creates a solid composite layer on the surface that completely removes the wood from the water, which greatly extends the life of the boat, and the outer side and bottom can be completely pasted, and the inner part, partially, at the joints.
Painting should be done in several thin layers, allowing each to dry. The bottom uses special anti-fouling or wear-resistant paints. waterline (the border of water) can be distinguished by a contrasting color for aesthetics.
How to keep a boat in the winter?
A wooden or plywood boat cannot be kept upside down in direct sunlight, which can cause the seams to dry up. It is best to keep it indoors (garage, barn) in a horizontal position on flat bars, providing ventilation. If the boat remains outside, it must be covered with a breathing awning raised above the hull.
Which motor is better to choose for Ladoga 2?
The optimal power of the engine for Ladoga 2 is 5-9.9 hp Motors up to 5 hp will allow the boat to confidently plane with one person on board. Nine-strong units (for example, Yamaha 9.9 or their Chinese counterparts) will bring the boat to plane with two passengers and cargo. More powerful engines are not recommended due to the limitations of the strength of the transom and the length of the body.
Do I need to register Ladoga 2 in GIMS?
Under current regulations, registration is required for small vessels weighing more than 200 kg or with an engine power of more than 8 kW (about 10.8 hp). Since the empty plywood Ladoga 2 is usually less than 200 kg and motors are most often put up to 9.9 hp (7.3 kW), formal registration may not be required. However, the rules may change, and the final decision depends on the GIMS inspector and the exact weight of your particular instance with the equipment.
All-in-all-rules Ladoga 2 It's going to be a loyal helper for years to come, and the simplicity of the design allows the wearer to repair minor damage on their own, and the classic shape provides predictable behavior on the water, good luck in construction and seven feet under the keel!