important aspects

Engines affect design in two respects: their size determines the use of certain parts and their average thrust determines the maximum weight of the finished model.

When designing a new model, you need to determine which engine is right for you and make sure it's available. Sometimes it is necessary to evaluate the project on the basis of the engines actually available, even if it is necessary to give up some initial ideas.

Visit the propulsion section to find out more.

Stability is essentially determined by the shape of the model and the arrangement of the weights. It must always be calculated, even for the smallest models. But when designing a model with particular shapes or reproducing a real missile, the stability calculation becomes even more important. In some cases, to get a stable pattern and therefore straight flight, it is necessary to discard a certain type of engine or use a longer ramp than usual.In other cases, it may be necessary to forgo a particular configuration of fins or revise the layout of weights within the model. Many spatial models are similar because the basic shape is the most efficient. A long, slim model with medium-sized fins at the base of the body is stable without special precautions.

The materials and construction techniques are to be chosen according to the type of model, the motors that will be used and its dimensions. Specific materials for small and medium models are almost never suitable for High Power models.

And on the contrary, the materials used in the High Power models are excessive for the smaller models. A fairly common trend among beginners is to choose recycled materials or those found at home. Some of them can be used with relative success, but they are very few and can only be used for some minor elements, or for small models without any pretense. Another very important aspect is the use of the right tools. The equipment for the space models is more or less the same as for any model aircraft, but it is still necessary to have a basic equipment, and that they are tools of good quality. A set of branded screwdrivers, sharp drill bits, efficient cutters, hacksaw, a metal ruler, are among the indispensable elements to which others will gradually be added, especially if you build large models. In the Construction section you will find all the advice on materials and tools.