After the publication of “imaginative artists of Karelia” in No. 1 of 2008 “Modeller-designer” category “Panorama photos of readers ‘letters” to me began to address the readers-homebrew with a request to describe the method of manufacture of lightweight tires for the Amateur designs of all-terrain vehicles standard tyres of tractors. I understand these people — he was in this position. He remembered his ordeal in the curing chambers punctures of the tires in the cold to 30°C, the endless repair of the retaining straps of the cleats and decided on this issue to prepare the material and answer readers through the magazine, so as to write each one individually is not possible.
TIRES FOR ATV
“…The barge is loaded mast and folded sail, half pushed into the sea, floated on a light wave…
At the world Cup 1978, held in the city of Yambol (Bulgaria) in the class RC raketoplana S-4-D (the maximum mass of 240 g, the total impulse of the propulsion system 10-40 n*s) a convincing victory was won by the American athlete Harold Anglin. In three rounds, his model flew for 5 min in the fourth, additional, 3 min 23 s.
Spearfishing in waters with complex bottom relief and limited transparency of water has its own characteristics: no time to restore the gun, nowhere to maneuver. Rifle, currently available in the sale, for such conditions uncomfortable. Which is preferable underwater guns. Of the known types of such weapons is most suitable — capsule. Their main advantage is that when fired the harpoon at the impulse of several hundred kilograms, in contrast to the guns of other systems where the force on the harpoon does not exceed tens of kilograms. Accordingly vary the speed of the harpoon. The advantages of cap and ball pistols can be attributed to the ease of loading.
Czechoslovak athlete A. Turnips became the winner of the world championship held in 1978 in Bulgaria. He performed with the model missiles S-6-A. the Distinctive feature of his model — longitudinal connector housings. The model of this design was the only one in competition for the duration of the flight tape.
Flying model aircraft with electric motor is silent and doesn’t poison the atmosphere with exhaust gases. Model spared from the shaking characteristic of internal combustion engines, and, consequently, radio equipment, installed on the models with a motor, works more reliably (especially servos). That’s why recent sales microelectronical new grades immediately attracted the attention of modelers. However, the first samples have revealed some of their weaknesses: the unreliability of the brush mechanism and bearings, lack of ventilation of the armature and ferrite-barievykh magnets. Used for the manufacture of parts of the armature and commutator polystyrene cannot withstand high temperatures (150-170°).
These beautiful and flying planes is very simple. They can do and the guys who have not yet engaged in aircraft modeling. To work they need a dense drawing paper (drawing paper), a few dry and straight straws Ø 2-2,5 mm (grasses, bluegrass, wild oat), silicate office glue. Also needed is a blade for a safety razor, jig saw, ruler and pencil.
The club “Romantic” from the city of Krasnoyarsk our readers know of the recent publication (“M-K”, 1979, No. 4). The editors have received many letters with requests to acquaint them with the designs buggy club “Romantic”. Fulfilling readers ‘ wishes, we asked the head of the section of Amateur sports autostructure V. A. Hassan to talk about one of the most interesting cars.