In the world of domestic water transport, there are few models that could compare in popularity and recognition with the world of water transport. 350 rocketThis one. metal boatThe AMG5M, which has been produced for decades, has become a true symbol of accessibility and practicality for fishermen and hunters. The simple but efficient AMG5M aluminum-magnesium alloy enclosure allows you to feel confident both on a calm lake and on a medium-altitude river wave.
Many owners still operate these vessels, appreciating them for their maintainability and the ability to independently operate them. tuningUnlike today's composites, there's no sophisticated electronics that can fail at the most inopportune moment, and the design is so simple that it can be fully restored in garage conditions, if you want, using a minimal set of tools.
But age takes its toll, and often the buyer or owner is asked whether they need to upgrade. Should they change their skin? What kind of skin is it? boat-engine The answers to these questions require a detailed analysis of the technical nuances and an understanding of the real needs of operation.
Technical specifications and design features
The basis of durability 350 missiles Aluminum-magnesium alloy is highly corrosive, which is critical for constant contact with water, and the skin thickness of the side is usually 2 mm and the bottom is 3 mm, which provides excellent safety margin when hitting rocks or ice, while the overall weight of the body remains low enough for transport on a passenger trailer.
The hull is designed as a monocoque with longitudinal and transom stiffness sets, which allows the vessel to withstand significant loads without deformation. Dimensions The models allow three adults to comfortably fit with a full suite of gear, and the nose features a sealed rundock that serves not only as a storage facility but also as an additional element of buoyancy.
- 🚤 Body length: 3,500 mm
- 📏 Maximum width: 1380 mm
- ⚖️ Dry weight: about 130 kg
- 👥 Passenger capacity: 3 persons
And it's important to note that the factory equipment was often minimal, and the basic version lacked soft seats, windshield and a full deck, all of which owners often added on their own, turning a utility boat into a comfortable boat for recreation. MissilesThey are radically different from each other in appearance.
Upgrade of the hull and improvement of driving qualities
The most common area of improvement is improved hydrodynamics and comfort. 350 missiles It's not always fast enough, even with a powerful engine. hydro-lift (hydrofol) on a transom helps to get the boat to plane faster and saves fuel.
Many enthusiasts are doing a complete redesign of the cockpit, removing the regular wooden cans, instead of them, welding or pasting longitudinal runduks that act as seats or so on, which not only frees up space in the center, but also increases the overall overall overall performance. securityBecause things are more secure, the bottom is often sewn up with plywood, followed by linoleum or carpet for thermal insulation.
⚠️ Attention: Any welding with aluminum should be carried out in an inert gas (argon) environment. Using electrodes on steel or trying to cook the power elements with cold welding will lead to loss of leakage and destruction of the seam under load.
Special attention should be paid to the nose. Installing a full-fledged windshield made of Plexiglas or polycarbonate dramatically changes the sensation of the stroke. The headwind stops blowing heat, and the spray does not get into the face. The glass is often attached to homemade stainless pipe racks, which are welded into the side or attached to bolts through rubber pads.
The secrets of aluminum welding
For quality welding of the body of the Rockets 350, use tungsten electrodes (WT-20) and pure argon (99.99%). Before welding, be sure to clean the edges with a stainless brush to a metallic shine to avoid oxidation.
Selection of the optimal outboard motor
The choice of engine for 350 missiles Factory guidelines often talk about engines up to 5 hp, but practice shows that for confident planing with two passengers, this is not enough. 8-10 hp.This allows the boat to reach a speed of 25-30 km / h.
When installing a motor more powerful than 5 hp, the load on the transom must be taken into account. Aluminum is a plastic material, and the constant vibration of a powerful engine can lead to cracks in the mounting area. It is recommended to install a transom plate made of textolite or moisture-resistant plywood with a thickness of at least 12 mm, spreading the load over a large area.
There is a perception among owners that two-stroke engines are preferable for this model because of the lower weight and better traction at low speeds. However, four-stroke engines are better in economy and environmental friendliness, and also work quieter, which is important for fishing. The choice often depends on budget and availability of fuel in the area of operation.
When installing the engine on the Rocket 350, be sure to use a safety cable. Run it through a standard ring or welded loop and fix it on a lower unit - this will save the engine in the event of a cut of the transom bolts.
And the propeller is also important. The propellers often have a pitch that doesn't match the actual conditions of full loading, and the smaller pitch (e.g., 6-7 inches instead of 8) will allow you to get to the plane faster, although the top speed may decrease somewhat, and this is especially true when using a boat to transport cargo.
Drawings and schemes for self-manufacturing
For those who have decided to restore the rotten hull or build a replica from scratch, having accurate drawings is a must. Finding the original technical documentation of the manufacturer is difficult today, so many use restored diagrams from enthusiasts. It is important to observe the geometry of the frames, because it depends on the stability of the vessel.
When cutting sheet metal, you need to take into account the tolerances for bending and welding. Aluminum shrinks when welding, so the parts are cut with a margin of several millimeters. To flex the skin on curved surfaces (bones, foreshoots), special equipment or manually editing with a hard base is used.
- 📐 Scale of drawings: 1:10 or 1:5 for nodes
- 📄 Material for templates: dense cardboard or watman
- 🔩 Fastening: rivets from AMG5 or bolts M4-M6
- 🛡️ Protection: anti-corrosion coating of all seams
The nose is particularly difficult to make, where sharp-angled sheets of skin converge, and errors in calculations lead to bubbles or stresses that will eventually cause cracks, so it is always recommended that a life-size model of cardboard or fine plywood be assembled before welding the main body.
☑️ Preparation for construction/refurbishment
Comparison with modern analogues
Despite his venerable age, Missile 350 It continues to compete with modern PVC and aluminum boats, and to understand its place on the market, it is worth considering a comparison table of performance with popular models of other types.
| Characterization | Missile 350 | PVC boat (3.2 m) | Modern Aluminum (3.5 m) |
|---|---|---|---|
| Weight with motor | ~150 kg | ~60 kg | ~90 kg |
| Puncture resistance | High. | Low. | High. |
| Assembly speed | Ready to go. | 15-20 minutes | Ready to go. |
| Price (used market) | Low. | Medium | High. |
The main advantage of a metal boat over PVC is the inability to accidentally puncture the side against a sharp branch or a stone in shallow water. Rocket It's a concrete slip or a rocky beach, without fear of damage, but it's a lot less than the inflatable ones, making it difficult for one person to get off the water without a trailer.
Compared to new aluminum models, the Rocket benefits in price and availability of parts. Modern boats are often thin-walled to reduce weight, making them more vulnerable. In addition, the rocket's geometry has been tested for decades, while new models may have non-obvious design flaws.
Maintenance and durability of operation
Term of service 350 missiles The main enemy of aluminum alloys is not rust as we know it, but electrochemical corrosion and mechanical damage to the protective oxide layer. Regular inspection of the housing after each season helps to identify incipient problems before they become critical.
For storage, the best way to turn the boat upside down or set on special kilblocks. Contact with moist earth or grass for a long time can lead to local destruction of the metal. If the boat is wintering outside, put bags of silica gel or other moisture absorbers inside.
⚠️ Warning: Never wash aluminium casings with aggressive alkaline agents or acids. This destroys the natural oxide film and causes spot corrosion. Use only special aluminum shampoos or plain water with a mild detergent.
Mobile connections such as oar mounts, locks and locks of runduks require regular lubrication. In salt water conditions (if the boat is used in river deltas or at sea), zinc treads must be installed that will take over electrochemical destruction, protecting the main hull.
The main secret of longevity of the 350 rockets is the absence of contact of dissimilar metals (steel-aluminum) in a wet environment and regular lubrication of mobile nodes.
Summary and recommendations
Missile 350 It remains one of the best choices for those looking for a reliable, unpretentious and maintainable vessel, ideal for fishing, hunting and family recreation in small bodies of water, and the possibility of self-renovation makes this project interesting for people with golden hands.
When buying a used one, first of all, pay attention to the condition of the welds and the absence of cracks in the area of the zygomatic bends. If the body is intact, it is not difficult to restore and install a modern motor. It is an investment that will serve you and your children for many years to come.
Don't be afraid of the age of this model. aluminum-boat It can get a second life and be even better than ever, and the key is to approach maintenance and modernization wisely and using the right materials.
Where can I find the parts?
Original parts on the Rocket 350 have long been discontinued, but many elements (nuts, keys, transoms) are manufactured by third-party workshops.
Can I put a 15 hp engine on a 350 Rocket?
Technically, you can install, but it will require serious strengthening of the transom and reworking of the design. Factory recommendation - up to 5 hp, experienced water engines put up to 9.9 hp without modifications. The 15 hp motor can be redundant for the size of the body and create a dangerous overload of the stern.
What thickness does aluminum need to replace the bottom?
To replace the sheets of the bottom, it is recommended to use an alloy AMg5M with a thickness of 3 mm. The use of a thinner sheet (2 mm) will reduce the life of the boat, and a thicker one (4 mm) will unreasonably increase weight, which will worsen the driving qualities.
Should I paint an aluminum boat?
Painting an aluminum boat is not necessary, as the oxide film protects the metal itself, but painting with special soils (for example, VL-023) and aluminum enamels improves the appearance and makes it easier to clean from dirt and oil.
How many people can a Missile 350 carry on a passport?
Passport capacity is 350 kg, which is formally designed for 3 people, but in practice it is most comfortable to accommodate two adults with a full set of equipment for fishing or hunting.