Model rocket class S6A. Drawing, description

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Model rocket class S6A. Tips for a modeller

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For almost ten years, the leading group of Russian rocket modellers in the so-called sports classes has been headed by an athlete from Magadan I. Shmatov. His son Anton is following in his father's footsteps. For the last three years he was the winner of the world championship among youths, and in 1997 he became the champion of Russia among adults in sports classes S6A and S4B. Today our story is about his brake band rocket.

The design of models of Magadan athletes is a kind of "long-liver" in this class. This sports equipment has been in service for almost ten years and brings awards to its creators. I think our readers are interested in getting to know him.

The body of the model is molded from two layers of fiberglass with a thickness of 0,25 mm, followed by fixing in a drying cabinet. After processing the hull, three stabilizers, cut from 0,6 mm thick balsa veneer and reinforced with fiberglass, are butt-glued on epoxy resin to the tail section (engine compartment). The head fairing is fiberglass, a sleeve 25 mm long is glued on the bottom to connect it to the body. The bottom part is closed by a frame in which the brake band suspension thread is fixed. Its other end is glued to the stabilizer in the tail part of the body, and the whole of it is located outside along the model.

Model of the S6A rocket of the champion of Russia in 1997 A. Shmatov (click to enlarge): 1 - head fairing; 2 - connecting sleeve; 3 - frame; 4 - connecting thread; 5 - brake band; 6 - body; 7 - tail cone compartment; 8 - model suspension thread; 9 - MRD fastening pin; 10 - stabilizer; 11 - MRD

Brake tape measuring 1300x110 mm is made of metallized lavsan with a thickness of 24 microns. Fits "accordion" with variable pitch; 25 mm at the beginning and 50 mm at the end.

The mass of the model without the MRD and the brake band is 4,5 g. The Czech engine "Delta" - A-1-5 designed by I. Taborsky is used at the competitions.

Author: V.Rozhkov

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