Rolls on threads. Drawing, description

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Rolls on threads. Tips for a modeller

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The reliability of the control system of the aircraft model aircraft cord is one of the most important success factors in competitions. Equally important is how the elevators and flaps are suspended. Lack of backlash, ease of movement, survivability - these are the main requirements for these nodes.

On sports and educational models, hinges made of ordinary nylon threads with a diameter of about 0,15 mm have proven themselves to be excellent. In addition to them, for work you will need a jigsaw, a file and trimmings of plywood or plexiglass 1 mm thick.

Cut out two 10x80 mm plates from plywood and round off the edges with a file. Clamp their ends in a vice (the gap between the ends of the plates is 0,5 mm) and start winding the nylon thread. It should be laid in a figure eight, coil to coil, slightly pulling. After filling the entire length, cover the workpiece with liquid enamel. There is no need to be afraid that this will tightly glue the hinge - nylon threads are good because they retain elasticity after coating with enamel and paints. It remains to wait for the varnish to dry, and ... the pendant is ready! Cut off pieces of 10-15 mm and paste them into pre-prepared grooves in the rudders and stabilizer.

Steering wheels on threads
Production of filament suspension units for sports aircraft models

Steering wheels on threads
Gluing the loop into the stabilizer and elevator

Steering wheels on threads
Articulated connection of the stabilizer and elevator of a training aircraft model

Such nodes, unlike metal hinges, can work with slight distortions, they do not break and, as a rule, "survive" the model itself. On training aircraft, where the fins are made of wooden plates, it is easier to sew the rudders directly to the stabilizer, passing the thread through the holes pre-drilled in them. It is convenient to fix its ends with pointed matches moistened with enamel, the protruding ends of which are cut off after the pack has dried.

Author: A. Fedorov

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