Comparison WL Toys F959 vs WL Toys F949

— Airplane for beginners. The specificity of this type is reflected in the name itself: such models (they are also called “trainers”) are intended for initial training. This is the best option for those who have not previously dealt with radio-controlled aircraft. Usually, "coaches" have electric motors, light weight, good stability, and their design is designed, including on survivability in case of accidents and insensitivity to piloting flaws. All this allows you to confidently stay in the air even at low speeds and other critical modes, however, it makes it difficult to perform complex aerobatics. Nevertheless, such machines are quite suitable for basic aerial acrobatics; and some of them can even be equipped with interchangeable parts, allowing you to turn the “trainer” into a model for an experienced pilot.

— Glider. The main external feature of radio-controlled gliders, like their full-sized counterparts, is the large wingspan (which can be more than twice the length of the fuselage). At the same time, unlike classic gliders, these models have engines; however, such an engine, usually, continuously operates only when climbing, and after that it can be turned on periodically, for a short time — a long wing allows you to glide over long distances without using engine thrust. Gliders are not suitable for active aerial acrobatics and are intended mainly for level flight with smooth turns. Howev...er, with certain tricks on such a machine, it is also possible to perform individual elements of aerobatics.

— Mini plane. Aircraft of small size, with a wingspan of less than 400 – 450 mm. This makes them easier to transport from place to place and easier to use indoors (although you still need quite a lot of space for flying — like a gym). At the same time, compact dimensions make it difficult to use advanced features, and most models in this category belong to the entry level and have basic functionality.

— Acrobatic plane(Fan Flyer). Models originally designed for complex and aerobatics. They are distinguished by advanced high-tech equipment, are not cheap and require good piloting skills.

— Seaplane. Models equipped with a float chassis. Usually, they use the water surface for takeoff and landing, as well as full-size seaplanes; at the same time, many models allow the replacement of floats with classic wheels and can even be equipped with interchangeable chassis. According to the specifics of the application, they can be similar to both models for beginners and fan flyers (see above).

— Jet aircraft. Models that mimic the appearance of a jet aircraft. At the same time, such machines are not necessarily equipped with jet engines — most often they have the same motors as propeller models, except that the propeller role is played not by a propeller, but by an impeller hidden in the body. The latter is one of the advantages of this option in light of the fact that the moving blades are protected from contact with surrounding objects (unlike open propeller blades), which makes the device safer and less sensitive to collisions.

— " Flying wing ". Models built according to the "flying wing" aerodynamic scheme. Such a scheme assumes the absence of a pronounced fuselage, as well as separate stabilizers with elevators — only wing elements are responsible for pitch control. The purpose of such models can be both entertaining and aerobatic, depending on the design features. However, for a number of reasons, they have not received much distribution.

— Biplane. Biplanes are called aircraft with two pairs of wings, usually located one above the other. Such devices have a number of advantages over monoplanes (aircraft with one pair of wings) — in particular, a large wing area with a smaller span. However, most of these advantages are more relevant for full-size aircraft than for scale models. Therefore, in radio-controlled vehicles, the biplane scheme is mainly used to create copies of real machines (in particular, during the First World War).

The model of the engine that the model is equipped with. This parameter allows you to find detailed information and refine the features of the engine, which can be especially useful for professional use.

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

Collector motors are the most simple and affordable, have a small weight and are easily repaired; however, they have a relatively low efficiency, are prone to sparking, and do not "live" for very long. This option is typical for relatively inexpensive devices. Brushless motors, in turn, are more powerful, faster and more durable, but they are not cheap, and repairing such a motor on your own is an almost unrealistic task. They are used mainly in advanced models.

The wing span is the distance from one extreme point of the wing to the other (in other words, the distance between the left and right tips). For biplanes (see "Type") with wings of different sizes, the largest span is indicated.

Long(relative to the fuselage) wings provide more lift and make it easier to fly in gliding mode (for example, with a failed engine). In addition, the aircraft is more stable — but also less agile. Another disadvantage of a long wing is its high drag, which requires a lot of engine power and makes it difficult to accelerate to high speeds. In light of all this, aerobatic models (both fanflyers and beginners, see "Type") typically have relatively small wingspans.

The total length of the aircraft fuselage. By itself, it mainly determines the dimensions and "weight category" of the machine, and comparing this parameter with the wingspan (see above), one can evaluate some features of the use and controllability of the device.

The capacity of the battery supplied with the aircraft.

Theoretically, the higher the battery capacity, the more energy it can store and the longer the battery life can be. However, theoretically, battery life also depends on the power (read — energy consumption) of the engine, and in fact, it also depends on the flight style, the intensity of manoeuvring and other situational factors. Therefore, it is worth focus not so much on the battery capacity as on more practical parameters — first of all, the same operating time stated in the specifications.

At the same time, capacity data can be useful in some calculations — for example, when estimating the battery life of a larger battery. With an increase in capacity, battery life, usually, grows proportionally: for example, if a 1.5 Ah battery gave 15 minutes of flight, then with a 3 Ah battery this figure can reach 30 minutes. However note that more capacious batteries weigh more; this is especially noticeable with a small weight of the aircraft.

Rated voltage of the battery supplied with the aircraft.

This parameter is selected by the manufacturers to provide the required motor and servo performance. Therefore, when buying and regular use, you can not pay special attention to it. In fact, voltage data is needed primarily when looking for a spare or replacement battery.

Model of the battery supplied with the aircraft. This data can be useful both for clarifying the detailed characteristics of the battery, and for finding a replacement or spare battery.

The greatest distance at which a stable connection is maintained between the remote control and the model and the aircraft is able to be fully controlled. Note that this indicator is indicated for perfect conditions; If there are obstacles between the receiver and transmitter (for example, trees or buildings) or strong interference, the range may be slightly reduced. However, in most modern radio-controlled aircraft, this figure is more than 100 m (and in some up to 1 km); thus, the model is more likely to go out of line of sight than out of range of the remote control.

The way to launch (take off) the model.

— Manual. Hand-launched aircraft have a relatively small weight — otherwise it would be difficult to give the device the necessary acceleration. There is also no full-fledged wheeled chassis that allows you to stand steadily on the ground and roll along it; thus, landing is carried out either “on the belly” or back into the hand (there are special aerobatics techniques for this, in particular, hovering with the nose up, like a helicopter). To protect against damage during landing, various devices can be used — for example, a reinforced lower part of the fuselage, or a wheel in the lower part. The main advantage of models with manual launch is unpretentiousness in use: they, usually, can land on a surface unsuitable for a wheeled chassis (grass, arable land, etc.), and the possibility of taking off does not depend on the type of surface at all. On the other hand, they are more demanding in terms of landing technique and tolerate increased landing speed worse. As a result, the manual launch method is found mainly in gliders — for the sake of resemblance to full-size counterparts, such models have a design that makes it difficult to start from the ground.

— From the ground. Devices that take off after a short run on the ground — similar to classic full-size aircraft — and equipped with the appropriate landing gear for this, on three wheels (or two w...heels plus a tail wheel). Also included in this category are hydroplanes launched from the water (see "Type"). Launching from the ground (water) gives an additional resemblance to a real aircraft; in addition, it is generally simpler and safer than manual (especially landing), and is also suitable for devices of any mass. Of any significant disadvantages of this option, one can only name the need for a strip — a relatively flat piece of land. At the same time, some of the most demanding models require full-fledged asphalt, concrete, or at least densely packed soil. Nevertheless, there are usually no difficulties with finding such a site, so this drawback can hardly be called critical.