In addition to the hourglass, there are more structurally similar water. Their simplified version can be made and most. Enough to take two graduated bottles for baby food and to connect them with their necks in one tube, which is inserted two thin tubes, so that their opposite ends do not reach the bottom of the bottle. Time can be tracked for graduation or to apply a special scale by looking at the clock.
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TIMER FOR REZINOMOTORNAYA B-I
This timer deflects the rudder in 45 with since the start and after 2 minutes of flight puts the model in the parachuting mode deflection of the stabilizer at 45°. For its production...
The slipway role
Make the shape of the screw blades for rezinomotornoy model aircraft is quite difficult, but this work can be much easier if you use the simplest slipway. They may be the subject of...
