Where to start! This is the question asked by many novice rocketmodeler. What model to choose and what technology to build it! In our opinion, a good help in this will have material prepared at the request of the editors by S. Karasinym, supervisor of the club Houses of children’s creativity on Vasilevsky island of St. Petersburg.
The curriculum of any flying circle involves the construction of a simple single-stage model with a parachute or brake band. In connection with the change in the rules of the competition (increasing the diameter and length of the body) there is a need to develop models that meet the requirements of the new rules. In the design of such mini-missiles in our circle we solved the following tasks. The first is to do without scarce materials; second — the ability to manufacture without the use of machinery equipment; third is the acquisition of skills in drawing and hand tools. We offer you our versions of several models.
Build a miniature rocket (Fig. 1) start with making the case. On the mandrel with a diameter of 30 mm is wound up from any drawing paper in two layers with a small overlap, and one turnover without glue. After drying, the tube sand the seam and cover it with two layers of lacquer NTS. It should be noted that all outer surfaces of the model varnished to create a ground at the finish. D$forth on the mandrel with a diameter of 13 mm perform engine compartment for installation of MRD. He is a two-layer tube similar to the body. For positioning and centering of the MRD you need to make adapter rings. Material for them is in this embodiment is cardboard. There are also different grades of foam. The outer diameter of transition rings is slightly less than 30 mm, the inner of about 15 mm. Sawed jigsaw and machined rings are placed at both ends to the engine compartment and stick. The resulting coil is securely glued to the body of the model.