The industry has already mastered the production of some basic parts from thermoplastics. This is an interesting and promising method for production of large series, however, for individual products it is of little use — complex technological equipment. But similar results can be achieved by using has long been utilized by modelers epoxy resin in combination with glass and carbon fibre.
The smaller the cubic capacity of the engine performance, the more stringent the requirements for its design, manufacture, Assembly. Speed, cord of 1.5 cm3, which we offer, fine-tuned for many years, takes into account the shortcomings of previous designs and new directions in creating “polutorachasovom”.
This model has for many years successfully “replicated” by the modelers. The secret of its popularity are the simplicity of design and good flight qualities. And despite the immutability of the size of the “serial” model, in various instances were established micro-motors a working volume of from 2.5 to 4 cm3 in the compression and glow options. But the most often used are widely known for KMD-2,5 and equipped with a propeller diameter 220×120 mm Length of cord, generally used for runs close to the standard value of -16 meters. For the manufacture of parts of the model mainly applies to non-deficient materials.
To accelerate the construction of highway performance in the circle of Taldy-Kurgan regional station of young technicians was created a set of tools:
At competitions in ship modeling sport of most interest among audience and many athletes call the competition of high-speed radio-controlled models figure chart. The most popular of them can be considered a model of the class F3V — free design. Their creators usually distinguished by deep knowledge of the operation of radio equipment, motors of internal combustion, the skill of “navigation” and of course specific practical skills.
Category high-rise models (S1) is one of the oldest in the rocket modeling. Since 1985, the sixth world championship, it is firmly “registered” in all world and European Championships. It should be noted that our sportsmen became the leaders in it, and of the eleven world Championships last twenty years became seven-time Champions.
Constructed this model of the Bulgarian athlete G. Lalev — European champion in class S-3-A 1979. The case is made from one layer of paper on the mandrel Ø 17 mm, and then covered with a thin aluminum foil. At the bottom of the fixed magazine of the Linden under the engine. Guide rings are bent from copper wire Ø 0.5 mm and glued to the hull with epoxy. Stabilizers cut from the balsa plate with a thickness of 0.5 mm and covered with aluminum foil. They are attached to the body butt on the epoxy. Fairing the balsa. The dome of a parachute with a diameter of 500 mm are cut from the Mylar film. Weight of model without motor — 10
Parameters and characteristics of the model correspond to the categories Ѕ8А and Ѕ8В. The diameter of the container under the engine selected in accordance with a cross-section of the sleeve (MRD-2,5-3-3 or MRD-5-3-3). We present several design and technological recommendations for the production model.
A failure to “stand” due to poor paint quality model. A crucial role when applying color coating plays spray. I tried them for twenty years are many, but none fully satisfy me. That’s why in the end had to undertake the designing yourself. Took a commercially available spray “Shine”, refined some details and making some new ones. But in principle the device fully to make yourself; all of its elements are quite simple.
Considering the number of characterizing a working volume of cylinders of internal combustion motors produced by our industry, necessarily pay attention to the typical “failure”. Unfortunately, the motors of the class from 2.5 to 5.0 cm3 we did not exist. However, these engines required for flight training, high-speed radio-controlled model airplanes, scale airplanes. They can also be set on auto and advanced.