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1 Empennage — Install Stabilizer and Vertical Fin.

2 The utility model discloses a structural improvement for empennage transmission of toy helicopters, when improves the practical effect of the structure for empennage transmission.

3 The moveable horizontal surface of the empennage used for pitch trim.

4 A very light composing empennage allows to balance the model without adding any ballast to the nose.

5 The invention cancels the aerofoil, empennage and back helm, decreases the weight of plane, realizes lift vertically, enhances the height and realizes high-speed remote fly.

6 The empennage being laid across is much smaller than airfoil essential points, endways the empennage is straight.

7 Analyze the impact of empennage on the pose control of FMAVs and develop the moment model.

8 The effect of empennage spread on flight attitude was analyzed and validated by flight test data.

9 The force expression of the empennage of supercavity vehicle is given,[www.Sentencedict.com] the expression of the force and the moment when supercavity vehicle moves steadily is gained.

10 Therefore, the characteristics, the influence on the stability and control, as well as the design theories of the FMAV empennage are studied here.

11 The utility model relates to a toy plane which is composed of a plane body, wings, an empennage, an electric machine, batteries, propellers, a driving device, direction wheels, etc.