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.
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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”.
It is used in teaching music in rhythmic gymnastics, in experiments in physics etc. a Metronome, a scheme which offers Bulgarian journal “Radio Television Electronics” (see Fig.), gives not only audio but also visual signals. With the help of variable resistors R1, R2 their frequency change in the range of 40 to 200 cycles / min. which corresponds to the musical pace from “grave” to “Prestissimo”.
Every time, going to work in the morning, we try not to forget to turn off the apartment lights and appliances. Meanwhile, the function can be run machine consisting of three main blocks (Fig. 1): sensors, digital control unit and key. Here’s how it works.
Developing the concept of training plane DH.60, John. De Havilland has created a new aircraft of the same class – DH.60T. He was distinguished by a reinforced airframe, a modified biplane gearbox and motor “Gypsy” lll (120 HP). After releasing a small series of DH.60T went into production DH.82 with the increased chord of the lower wing. The first flight of a machine called “tiger moth”, was held on 26 October 1931
The unusual technique of grafting of trees was proposed by I. V. Michurin, and in the book N.Verzilina “Travel with house plants” describes this original method of obtaining cuttings from living branches directly on the tree. He was “surrounded” branch vessel with water and gave them the roots of the old branches of the pear and Apple trees, cuttings from which the ordinary by not okorenyayutsya. Most clearly such an experience to spend with oleander: its cuttings are particularly well give the roots in water (about a month).