The question is, How much does a outboard motor weigh: 25The model, which has become a classic of domestic engine building, is still actively used on rivers and lakes, providing reliable traction for various types of boats. The weight of the power unit is a critical parameter that affects not only the ease of transportation, but also the carrying capacity of the boat and its driving performance.
Many newcomers are often confused dry-stock and stockThis leads to errors in the planning of the load on the transom. Whirlwind 25 The difference between these can be significant because of the design and the presence of additional nodes. Understanding the real numbers will allow you to correctly calculate the differentiation of the boat and avoid transomania, which is especially important for lightweight aluminum or PVC boats.
In this article, we will discuss in detail the weight specifications of various modifications, including: 25E vortex You will learn why the 46 kg claimed in the passport may differ from what you see on the scale, and how this affects the choice of weight. outboard for your boat.
Technical specifications and passport weight
Official documentation accompanying Whirlwind-25According to the technical data sheet, the dry weight of the engine is 46 kilograms, but this figure is relevant for the basic configuration without taking into account the fuel in the tank, oil in the mixture and attachments, which are often installed by the user himself.
It is worth considering that engine It can vary depending on the year of production and the specific manufacturer, as different alloys for crankcases or lower units may have been used at different periods. For example, earlier models may have had slightly heavier lower unit due to different casting technologies, whereas versions tended to optimize weight.
⚠️ Attention: The 46 kg passenger weight does not include the weight of fuel, oil and fastening. When calculating the load per transom, always add a minimum of 5-7 kg to the full tank and fasteners.
For owners who plan to carry the motor often manually, each kilogram counts. Whirlwind-25 It's a medium-sized motor, and it's already a weight that's noticeable for one person, especially if you have to overcome the difficult terrain of the shore, so having a precise knowledge of the specifications helps you decide whether to buy a wheelchair or additional arms when you go down.
Before buying a used motor, be sure to weigh it with a tiller - older models can be heavier due to corrosion and accumulated water condensate inside.
Differences in weight of modifications Virg-25 and Virg-25E
In the market of used equipment, two main modifications are most often found: the classic one. Whirlwind-25 and its electrified version 25E vortexThe main difference between them is the ignition system, which directly affects the total mass of the unit. electronic It adds a certain weight, although insignificant compared to the total engine weight.
Modifications 25E vortex It is considered more modern and reliable in operation, since electronic ignition works more stable at different turns. However, when choosing between used engines, you should pay attention not only to the type of ignition, but also to the state of the lower unit, which in older models can be heavier due to fouling or internal deposits.
Below is a comparative table showing differences in performance that can indirectly affect the weight and perception of engine severity in operation:
| Characterization | Whirlwind-25 (Carburetor) | Vortex-25E (Electronic) |
|---|---|---|
| Type of ignition | Contact (magneto) | Contactless (electronic) |
| Weight (passport) | 46 kg | 46-47 kg |
| Power | 25 hp | 25 hp |
| Fuel. | AI-76/80 (mixture) | AI-92 (mixture) |
The difference in weight between the modifications is so small (literally a few hundred grams) that it is almost not felt during transportation. dimensions and ergonomics of the crank, which in different versions can have a different design and, therefore, different weight.
Effect of attachment equipment on total mass
When we talk about this, How much does a outboard motor weigh? In reality, you can't ignore attachments. Standard equipment is often limited to the engine and the tiller itself, but a whole host of additional elements are needed to fully operate. A gas tank, a fuel hose, a screw, a propeller (if not installed) all add kilograms to the final figure.
Special attention should be paid propellerStandard screws for Whirlwind-25 Brass screws, which are often used to increase durability and improve traction, are much heavier than aluminum counterparts, and the difference can be from 1 to 2 kg, which is significant when carried by hand.
Weight is also affected by the type of rampel used, and the elongated bumples, which are often installed for ease of handling from the stern, are heavier than the regular short handles. remote-controlThe weight of the motor itself decreases (removes the rumpell and magdinos), but the weight of the cables and dashboard is added, which also need to be taken into account when balancing the boat.
⚠️ Attention: Do not use propellers in increments that exceed the recommended pitch for your boat. This will not only worsen the course, but also create an excessive load on the lower unit, increasing the risk of failure.
To accurately calculate the displacement of the boat, it is recommended to weigh the engine assembled with all the equipment that will be installed on it. cross-board will be overloaded, which is especially critical for inflatable boats with hard transom.
Ergonomics and ease of transportation
Weight between 46 and 50 kg is a borderline value that many classify as "heavy for one person." metal boatPVC boats, which are often stored on a trailer or stationary parking lot, this parameter is not so critical, then for owners of PVC boats, who are forced to often remove and install the engine, this becomes a serious test.
The centre of gravity Whirlwind-25 It's shifted down, which, on the one hand, improves stability on the transom, but on the other hand, makes it uncomfortable to lift the motor on board. lower unit Or you can rip off the threads of the fasteners, and the right lifting technique involves grabbing the leg and the body at the same time.
☑️ Preparation for motor transportation
To facilitate transportation, experienced water-engineers recommend using special wheelbarrows or jacks, which allow you to hang the motor on the crossbar, spreading weight and freeing your hands for other tasks, this is especially true if you have to walk a long way along the shore to the descent.
If you plan to move the motor often alone, you should consider buying or manufacturing a winch per trawler. outboard on board without excessive back strain, which will preserve your health and prolong the life of the equipment.
Comparison with modern analogues
Comparative. Whirlwind-25 With modern Chinese or Japanese equivalents of the same power, you can notice a significant difference in weight. Modern two-stroke engines with a capacity of 25 hp often weigh in the range of 35-40 kg, and four-stroke engines - about 45-50 kg, but with better ergonomics. Soviet engines Lose weight due to the use of thicker metal and less optimized designs.
However, Whirlwind-25 It's a great asset in terms of maintenance and availability of parts, and it's simple and simple, and it's a big weight, but it's a big weight, and it's a big safety margin, and it's a very good time quenching vibrations, making it much smoother at low speeds than lightweight today.
When choosing between b/o vortex And the new low-cost Chinese engine, weight becomes a decision-making factor. ease If you want to be reliable, you want to be easy to transport, you want to be more comfortable with modern models, but if you want to be reliable, you want to be non-destructive, you want to be able to repair them in the field, you want to be weighted. vortex This is an acceptable cost for reliability.
Why is the vortex heavier than modern engines?
The design of the vortex was developed in an era when weight saving was not the #1 priority, using thicker crankcase walls, massive lower units and heavy alloys, which provided a huge margin of safety, but increased weight.
Practical advice on installation and operation
Installation boat-engine Weighing under 50 kg requires certain safety regulations, first of all, make sure that your boat's transom can withstand this load. Whirlwind-25 A transom height of 380 mm (standard S) is recommended, but the motor can also be mounted on transoms 500 mm high using superstations, although this will shift the center of gravity even higher.
When tightening the fasteners, don't overdo it, because excessive force can warp the transom or damage the rubber shock absorbers of the motor, use a dynamometer key or pull it out of the soul, but without fanaticism, given that when you're working, the motor will vibrate and can pull itself up.
Regular maintenance will help maintain the performance of the engine. lubricant In the gearbox and checking the condition of the lower unit will prevent corrosion, which over time can add extra pounds of weight to the engine due to oxides and fouling.
⚠️ Attention: Never leave the motor in water for long periods without corrosion treatment. lower unit aluminum alloys are susceptible to electrochemical corrosion, especially in salt water.
The weight of the Vortic 25 is a compromise between the reliability of Soviet engineering and modern comfort, and knowing the exact mass will help prepare the boat for the season.
Frequently Asked Questions (FAQ)
Can I install the vortex-25 on an inflatable boat with a length of 3.2 meters?
Technically, this is possible if the trunk of the boat is reinforced and designed for power up to 25-30 hp However, the weight of the engine (about 50 kg in the assembly) will be a significant part of the payload of such a boat. It is recommended to use boats from 3.6 meters in length for comfortable and safe operation with this engine.
Is the weight of the vortex-25 different from the vortex-30?
Weight difference between Whirlwind-25 and Whirlwind-30 It's a minimal, about 1-2 kg, mostly due to differences in carburettor and settings, and the dimensions and bulk of the lower unit are almost identical, so the ergonomics of the carry will be the same.
Do I need to remove the screw when transporting the engine?
When transported over long distances or stored, the screws are better removed to avoid deformation of the blades and damage to the lower unit in accidental impacts, and it will slightly reduce the overall weight and dimensions when packed.
What is the real weight of a vortex-25 with a full tank?
The dry weight is 46 kg. A standard 22-liter takeaway tank will add about 16-17 kg (fuel weight + tank weight), which means that the full system will weigh more than 60 kg, making carrying assembly extremely difficult for one person.