Floating timer… One of the most complex and controversial requirements to the technology requirements of the class of models of free flight. A complicated structure, powerful power plant, rise to dizzying heights after the launch. What kid does not want to build such a microplane!
But, as a rule, to young timerite no balsa, no aluminum foil, not even a reliable and powerful engine working volume of 1.5 cm3. Still the same MK-17. However, using an elaborate, well-established pattern, the bearing concave-convex wing profile, to find the optimal elongation of the bearing surfaces, after working on “Junior” MK-17 and equipping it with a brake of the air screw, you can achieve very good results.
How to create for participation in competitions of such a technique, says one of the oldest model aircraft instructors of Ukraine, the head of the circle with more than thirty years of experience V. N. Doroshenko.
More than a dozen years boys build time similar designs, and successfully participate with them in various competitions. Therefore, the proposed model worked as they say, to screw. Similar devices are used by us in the “adult” class. Such time, calculated under the engine working volume of 2.5 cm3, different size, while maintaining all the design features “lorry”.