Comparison Sulong Toys Off-Road Crawler Rock Sport 1:20 vs Nanda Racing BD8R 1:10

— RTR (Ready to Run) — the box contains a fully configured and ready-to-run model. Such models are equipped with a battery, a remote control, and a charger.

— ATR (almost-ready to run). The model is almost completely ready for use, but some of the elements are still missing. The list of missing components can include both a battery and a remote control or charger. All of the above components may be missing at once. Missing parts must be purchased separately. Models in the ATR package are designed for advanced users, this package allows you to choose batteries or controls based on your own needs and requirements.

— PNP. the receiver and transmitter are not included in the package, and often there is no battery. Additionally, the PNP set may not contain control equipment. Radio models in the PNP configuration are designed for professionals who often use individual electronics. Usually, the design of the model itself is collapsible, which significantly increases the maintainability of the product. Many models sold in the PNP configuration are allowed to participate in prestigious exhibitions and competitions.

— K.I.T. For the most part, only body parts are provided in the kit. The kit has a lot in common with the designer, because from such a kit it is possible to assemble various options for the body of the radio model. The KIT package includes neither radio communication mod...ules, nor control equipment, nor electric motors. That is, the user will have to buy / manufacture all the hardware of the radio-controlled model on their own. Radio models in the KIT package are designed for advanced users. KIT kits are suitable for assembling advanced models, which are often used in prestigious exhibitions and sports competitions.

The scale allows you to estimate the overall dimensions of the model — it describes the ratio of its dimensions to the dimensions of a full-size machine of a similar type (see below). For example, the length and width of a full-sized buggy average about 4 m and 2 m, respectively; this means that for a radio-controlled model on a scale of 1:10, these parameters will be 10 times smaller — about 40 cm and 20 cm (plus or minus).

Miniature scales are considered to be 1:24 or less ( 1:28 and 1:32), while in the largest scales it reaches 1:6( 1:5) — such models are not much smaller than children's cars (however, they are not intended to replace them). A small size is considered optimal for use in residential areas, a large one — in open areas. Most road models (see 'Type') are available in 1:10 scale, SUVs in 1:8, and larger scales are found in advanced internal combustion engine models (see 'Engine'). The most common scale options are 1:14, 1:16 and 1:18, which are found in both the low-cost and high-end segments.

- Stunts. Cars of this class are designed for driving and performing various tricks, mainly related to acrobatic performances, jumping and overcoming obstacles. They are characterized by being an off-road type (usually a “monster” or truggy, see below), a powerful engine, high ground clearance, large wheels and reinforced suspension.

— Short course. Short-course models are off-road vehicles (buggies, truggies, “monsters”, see below), specialized for cross-country speed racing. They offer good crash and jump protection, a rugged design, a rigid body that covers most of the sensitive parts, and shock absorbers designed to withstand heavy loads.

— Drift. Drifting competitions on radio-controlled models involve passing an asphalt track at maximum speed with the constant use of a controlled drift. Based on this, drift cars must have rear-wheel drive, a locking rear differential, and tires with a shallow pattern that are stiffer than most other models. It is worth noting that their appearance can much more accurately replicate real cars than in the case of ring models.

- Ring. A variety of road-type models (see below), designed for passing on flat roads with a hard surface (like asphalt) for a while. A distinctive feature of most of these cars is the smooth, “sleek” shape of the body to ensure aerodynamics (or to...simulate it if the maximum speed is low).

Let us note that professional models intended for competitions and serious car racing usually have one of the specializations listed above. If the class is not specified, the machine most likely belongs to the entry-level and has a purely entertainment purpose (although such models can also have quite advanced characteristics).

— Highway. Also known as "touring". These are cars that outwardly copy passenger cars — both ordinary production cars and tuned ones, and even special cars like NASCAR cars. They can have a ring or drift purpose (see above), in general, they have high speed and good handling.

— Buggy. Full-size buggy-type vehicles are light all-wheel drive vehicles for off-road driving, primarily sand, with a characteristic body structure (angular panels, open frame elements, safety arcs) and suspension (wheels are most often noticeably moved to the side on the suspension arms). Radio-controlled buggies have a similar design. The body, however, is often stylized as racing cars, but this type of specialization is primarily off-road — for example, many short-course models (see "Destination") are specifically buggies.

— Truggy. This class is in many ways similar to the buggies described above, but differs from them in larger wheel diameters, longer suspension arms and increased ground clearance (see below). This may slightly reduce the speed, but increases the throughput; truggies are used for both short-course and trick riding (see Purpose/Class).

— SUV (monster). As the name implies, such models copy monster trucks — cars stylized as pickup trucks, the most striking feature of which are huge wheels, powerful engines and corr...esponding chassis features (large suspension travel, high ground clearance). Like the full-size originals, radio-controlled monster trucks are in many ways similar to buggies (see above), and differ from them only in the described features. "Monsters" are relatively poorly suited for high-speed driving, but they have high cross-country ability, due to which models for tricks and short courses are found in this type (see "Destination (class)").

— Rally. Such cars are a cross between "touring" and full-fledged SUVs. Outwardly, they are similar to road models, but have significantly more suspension travel, more powerful engines and improved mud protection. At the same time, rally cars are not designed for full-fledged off-road driving, overcoming significant bumps, etc.; their maximum is a dense coating like packed sand or fine gravel.

— Crawler. A specialized type of radio-controlled cars designed to overcome obstacles. Externally, the crawlers are somewhat similar to the “monsters” described above, but differ from them in a higher suspension height, which provides a characteristic silhouette: a body raised high on long “legs”. This design allows crawlers to cope with difficult obstacles — like stone scree with steep slopes. Note that the speed characteristics of this category of cars are quite modest, because. the emphasis in them is primarily on high cross-country ability.

— Changeling. Models of cars that even turned over will be able to continue moving. At the same time, from different sides, the body of the machine may look different. Such models have good cross-country ability and are considered stunt models (see "Purpose (class)").

The minimum age for which this radio-controlled model is suitable. These recommendations are rather conditional, but it is still not recommended to deviate from them. "Adult" 14+ models with a lot of adjustments, moving parts and power simply will not be able to master a young rider of preschool and maybe even school age. At the same time, models for the younger age category ( 3+, 4+, 5+) may not be interesting and boring for older children ( children 6 and 8+). It is also worth noting that radio-controlled cars are not always children's toys and there are models for modeling, racing — professional use.

— Electric. The most versatile type of engine: does not produce exhaust gases and is relatively quiet, so it can be used both outdoors and indoors. Charging batteries or changing batteries is usually much easier and cheaper than refilling a tank of fuel, and the maintenance of such machines is minimal (in most cases, it is actually not required at all). Electric motors are powerful enough to provide both good speed and good cross-country ability, so there are quite advanced models among such machines; at the same time, such motors are inexpensive. Among the shortcomings, it is worth noting the weak similarity of such cars with full-size cars while driving (for lovers of realism, this can be fundamental), and also, in the case of original batteries (see “Battery type”), a long charging time.

— ICE (gasoline). An internal combustion engine (ICE) that uses gasoline as fuel. This option is closest to what is used in real cars; many fans of radio-controlled cars appreciate gasoline models for the sound of the engine and even the characteristic smell of exhaust gases. Another advantage is the almost unlimited time of the “rides”, subject to the availability of appropriate fuel reserves. On the other hand, noise and exhaust create inconvenience when used indoors, so gasoline "devices" are recommended to be used only outdoors. ICEs are more demanding to maintain than electric motors, but this is also neit...her a definite advantage nor a disadvantage: caring for an engine requires effort, skills and time, but for many enthusiasts this moment provides additional pleasure from their favorite hobby.

— ICE (fuel). Internal combustion engines using various non-petrol fuels. Most often, a mixture of nitromethane and methanol is used in this role: for a number of chemical features, this combination is much better than gasoline for model engines with small (compared to full-size cars) cylinder volumes. In addition, the nitro-methane mixture provides more power, allowing you to create models with high speed and flotation, and the adjustment of such engines is somewhat easier. As a result, most ICE cars today are designed specifically for special fuel; the rest of their features are similar to those described above for gasoline. It is worth noting that it is impossible to refuel such models with gasoline — this will disable the engine.

— Is absent. The absence of an engine in the kit is typical of some advanced large scale models. It is assumed that the user will select and install the engine for such a machine on his own.

The name of the engine installed in the machine. Usually, knowing this name, you can easily find information about the features of the engine — both official manufacturer data and reviews from users — and determine how much you are satisfied with its characteristics. This can be very important when choosing a model for professional motorsports.

In addition to the name, this paragraph can also specify the type of electric motor (see "Engine") installed in the machine — collector or brushless.

The collector design of the electric motor can be called classical. It allows you to create fairly light, compact, inexpensive motors, which are also easily repaired. The disadvantages of this option are relatively low efficiency, a tendency to spark (especially when overheated), as well as less durability than brushless models. In addition, with a collector motor, it is more difficult to ensure high speed. As a result, this option is typical for entry-level and middle-level models (relatively slow).

Brushless motors are considered more advanced than brushed motors: they are more powerful, more economical, more durable, better protected from pollution and well suited for overclocking to high speeds. On the other hand, such engines are much more expensive, and the complexity of the design does not allow you to repair the motor on your own. In light of all this, brushless motors are used primarily in advanced high-speed cars; the presence of such a motor is an ind...icator of a rather high class model.

Some models of radio-controlled cars can be produced in two versions, differing only in the type of electric motor.

The total volume of cylinders of the internal combustion engine of the machine (gasoline or fuel, see "Engine"). In general, the larger the volume, the more powerful the engine, with the same type of fuel, however, the consumption of this fuel is usually higher. Also, this point depends on the type and scale of the model (see both points above). So, among the road options at 1:10 there are mainly volumes of 2-2.5 cm3, 1:8 — about 3.5 cm3. For off-road types, the indicators are 2.5-3 cm3 and 3.5-4 cm3, respectively.

Note that in models purchased for entertainment purposes, engine size does not play a significant role, and for professional use there are recommendations depending on the purpose (see above), weight, type of fuel and other parameters. You can get acquainted with such recommendations in specialized sources.

Also, the volume of the engine can serve as a criterion for admission to competitions.

The volume of the fuel tank of a car with an internal combustion engine (see "Engine"). The larger this volume, the less often you will have to refuel the “apparatus” (with the same engine characteristics).