DYNAMIC HOOK

DYNAMIC HOOKMany model airplanes-students dream to provide their own model gliders hooks for dynamic start. Designs that have already been published, quite complex for the manufacture of novice modelers.

 
Offer a simple hook to tow the model glider in a circle when searching for thermal updrafts. It is also suitable for conventional launch. The hook is made of aluminum with a thickness of 1,5—2 mm. the Shoulders of its upper part in the extreme positions rests on the M3 screws. One of them (1) adjust the position of the steering wheel under tension of the handrail, others (2) the deviation of the rudder in free flight. At the bottom of the hook made 3-4 holes Ø 2 mm. In them, threaded cotton thread, the other end she tied to a ring rail. The tow model is recommended on the line (guard rails) Ø 0,6 mm. the Thread must ubivatsya in tension of 1.5—2 kg. With the rudder hook connected to a steel rod.
 
 
If the model has a timer, it should be connected with ring rail thin (Ø 0.6 mm) cutting line (see figure). He will play the role of checks and works with the tension ring. The inclusion of a mechanism occurs when the torn cotton thread. If a forced landing is carried out using a wick, a failed towing Leer (Ø 0.6 mm line) you can let go and the model will not fly away.
 
M. PAKHOMOV, head of the aircraft modeling lab, Moscow

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