Which of the following statements is correct?I. A dorsal fin increases the contribution of the vertical tall plane to the static directional stability, in particular at large angles of sideslip.II. A dorsal and a ventral fin both have a positive effect on static lateral stability.
选项:
A:l is incorrect, II is incorrect.
B:l is correct, II is incorrect.
C:l is correct, II is correct.
D:l is incorrect, II is correct.
发布时间:2024-06-22 14:32:34