Like most real plane, then the laws and principles in a model airplane work force as well. As an example of action and reaction forces that arise when one moves forward (thrust), lift (LIFT) and their ground gravity (WEIGHT).
Stabiitas airplane or model is the ability to return to a specific position in a flight (after a disruption or abnormal condition). Airplane or model can become unstable under certain circumstances and not because of other conditions. For example, an aircraft can fly stable in normal circumstances (STRAIGHT and LEVEL) but becomes unstable in a state of flying upside down position (inverted FLIGHT), and vice versa.
Stabiitas airplane or model is the ability to return to a specific position in a flight (after a disruption or abnormal condition). Airplane or model can become unstable under certain circumstances and not because of other conditions. For example, an aircraft can fly stable in normal circumstances (STRAIGHT and LEVEL) but becomes unstable in a state of flying upside down position (inverted FLIGHT), and vice versa.
Often confusion occurs between the stability of the balance (BALANCE) or Trim. Tests carried out in order to balance and trim the aircraft can reach a stable condition closely related to the safety factor.
For a aeromodeller, however with the level of caution is very high and well in making a model, which has completed the final result should always be retested levels of precision and accuracy, and means testing Balance and Alignment carried out before the model was flown. This should be applied to all types, especially free-flying models (Free Flight Model - Classes F1).
Balance is the most important thing, and should be examined first. For models that have been published or models that have been sold in kit form, usually the balance point is marked with the CG (Center of Gravity).
The most convenient and commonly performed to test the balance is to provide a sign at the bottom of both ends of the wings are in line with emphasis also on the front and rear of the fuselage, then lift the plane at these points with your fingertips. If the balance of the model is in horizontal position, means the right balance point. What if not, then the burden harusditambahkan or popular with the ballast in the front (Nose) or tail (Tail) of a model.
It has good accuracy for many purposes, especially for models that have karatersitik small differences in balance and no is critical and has a stability condition that can be set (Trim). For models that have a larger size and needs of the high balance, it can not be applied.
Keep in mind also that the balance should be performed to test the model in a state of complete (all parts attached) and ready to fly, even though the fuel is not included in the model are calculated using the machine. Most do not meet the requirements of this condition and give the whole picture regarding the balance.
Generally, models that have been made, the position of the wing (WING) and the horizontal stabilizer (highlighter / ELEVATOR) must be checked. Currently most of the modeller to use the view (SIGHTING by EYE) to determine whether the position of the wing and highlighter forming right angle with the fuselage (fuselage), it is recommended to use the actual equipment that precision in determining the position.
As an example can be used pins and thread. The needle was placed at the front (NOSE) and rear (TAIL). Then the threads of the pin is pulled to the front end (TIP) right and left highlighter. For the wings, the threads of the pin is pulled back to the wing tip (WING TIP) left and right.
Viewed from the rear of the aircraft is also one effective way to test the whole process. To correct an error in the position of the wings, body and tail part is not true, so the first time looking for the wrong done. In reality what happens when a small error on the wing against the body then the easiest thing is to adjust the position of highlighter.
Test fly and trim done so that a model can fly smoothly and safely. A good adjustment of all components of the aircraft in use to achieve the best results from the performance of the aircraft models, especially models that are designed for high achievers. It requires special attention, good experience and know-how about the model are made.
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