Roll Motion Restraint System for NAL 0.6m MSBS (the 2nd report)

Suspending the wind tunnel model and controlling its motion in 5 degrees of freedom are realized in the NAL 0.6m MSBS but the roll motion of the model is not controlled yet. So a mechanical roll motion control system is designed for NAL 0.6m MSBS. This system has worked well in the test with the free rotation model hung by the string vertically and applied to the model suspended by MSBS. A wireless communication system between the system inside the model and the observer out of the test section has also been designed.