Still, the vast majority of models of submarines with rubber motor class EL-500 (500 mm in length) are built on the same scheme. However, the adopted version with the detachable bow and stern parts of the hull has a number of disadvantages. No matter how carefully manufactured parts, the line connectors on the polished surface of “skin” still stand out, which spoils the appearance polyopia. Students involved in a circle of the second year (namely, they calculated the design of class-EL), not under force independently to build the model without the constant help of the leader of the group.
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What processing methods but use the young technology for the manufacture of shells of rocket modeling! The most affordable and waste — vikla CA on the blank paper cylinder, master, “the one receiving a novice can just a few classes. For more complex models, especially copies, it is necessary to use a metal mandrel, fiberglass and epoxy resin. To make such tooling without a lathe, you might need it and when processing fairings models.
The appearance on the competition models of sailing catamarans and trimarans was the natural result of the development of a very interesting class of ship models — radio-controlled yachts. First I gotorussia was built in our country in 1974 almost simultaneously by three athletes from Kiev, Valeriy Bondarenko, a Muscovite Valery Efimov and the author of this article. All mini yachts was created on the basis of requirements for models of class F5-S (with an area of 0.5 m2 sail). The best results showed catamarans. In the future, on the basis of their group Kazan modelers have worked a few designs, which already could compete with the traditional single-hulled yachts with moderate wind and have a distinct advantage with strong.
New simplified design of the tow hook works just as reliably as the best modern designs, providing easy control model glider when you search for updrafts and good acceleration apparatus for dynamic start.
In 1980, the sub-Commission on the rocket modeling of the FAI decided to introduce a new class of raketoplana S8E with a maximum mass up to 300 g engine with a total impulse of 40 n*S. Model of this class, created by Bulgarian athletes participated in the competitions and showed good results. Having the necessary materials, it is easy to make in the flying circle. The engine of rocket with a total impulse of 40 n*works for 10 s. To control the model can be used in compact
Every year the competition is less you can see modelers who runs the micro internal combustion manually, without the aid of special starter. Often using mechanical devices, electric starter with battery to use is not very convenient — too heavy batteries, and to recharge them is not always possible in “field conditions”.
Fifty meters distance, but still ten before entering the starting line — the distance the self-propelled sudomodel must pass like a ruler. The slightest error in the adjustment would lead her away from the cherished two-meter finish. Beginners usually try to make my models go straight, bending the rear portion of the keel plate. Imagine how difficult it is to “guess” the right position, and carousing out of place the wind can get back to work pliers. You can easily and quickly get the desired result using one of the simplest devices fixing the turning of the steering wheel.
The rocket plane with Delta wing design is widely known, repeated in dozens of models. However, leading athletes of the country are constantly experimenting, looking for even the long-familiar schemes something new to achieve better results.
