**4. Results and discussion**

**Table 2** shows the aileron angle at each wind speed. **Figure 17** shows the aileron displacement at each wind speed [6]. Up to a wind speed of 5 m/s, the aileron angle could be obtained up to 20 deg. However, the aileron angle gradually decreased from a wind speed of 10 m/s and reached 4 deg. at a wind speed of 15 m/s.

**Figure 18** shows the aileron drive speed when there is no wind, as measured in the lab. The rudder angle could be moved up to 20° at a speed of about 100 ms, and the same rudder angle and speed could be reproduced even if the drive control was repeated.

