Stabilizers are cut from balsa medium density thickness of 1.5 mm. Front edge securevault to obtain a sharp streamlined (and, more importantly, symmetrical) in shape, back rounded. The exterior finish of the stabilizers is similar to the already mentioned elements.
The adapter, or rather its base, the circumferential metal frame d 14 mm five layers of gummed paper. After drying, the workpiece is cut along the length and once varnished. Made from lightweight yet sturdy balsa 2 mm thick, cut two strips 10X50 and 20X50 mm, the layers of wood should be placed along the short side of the rectangular workpiece. After enduring ten minutes in warm water, gently wrapped around the base of the adapter is fixed in that position and dried. After they are completely dry wood, cut through the balsa tube with a razor blade through the overlap, remove waste, and glue the “bandages” on the base. Processing them to the required dimensions is carried out on a mandrel mounted in the Chuck of the machine. During this operation, once again need test pattern-ring. The conical part of the adapter is finished according to the known technology, the rest of the surface of the part once varnished.
Fig. 1. Model missiles Ѕ3А:
1 — the stabilizer, 2 — guide ring, 3 — adapter, 4 — body, 5 — fairing.
Fig. 2. The fastening system of threads on the engine:
1 — engine, 2 — strip Skoch, 3 — connecting thread, 4 — clip.
Ready the adapter glued in the aft body mounted stabilizers. In the “bottom” of the head fairing by means of a wooden wedge that is fixed by the rubber thread a cross section of 1X2 mm, length 200 mm, attached To her thin strong thread with a length of about 400 mm, load at the other end of the paperclip made of thin soft wire. The latter is mounted on the motor strip of tape Skoch.
The model is equipped with a parachute d 1 m, cut in the form of shestnadcatiletnie. Sling length — 2 m. For better traceability of the model on the descent the parachute is painted in bright colors. It is hinged at the coupling rubber thread 70 mm from the head fairing. The connecting thread is mounted on the housing at the center of gravity of the rocket (in the case, should be installed exhaust engine) strip of thin Skoch.
Model takes off from the guide pin 0 5 mm. On the pin missile is held by two tubular guide rails, rolled on the mandrel d 5.5 mm of duralumin foil of 0.3 mm thickness.
According to the magazine “Modelarz”, Czechoslovakia
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