Final answer:
To make a conventional aircraft more directionally stable, you can increase the size of the vertical stabilizer, use a yaw damper system, and incorporate a dihedral wing design.
Step-by-step explanation:
There are various changes you can make to a conventional aircraft to increase its direction stability. A possible solution is to make the fin, or vertical stabilizer, larger. This makes the aircraft more stable in maintaining its intended direction by strengthening its resistance to yawing motions. Adding a yaw damper system, an electrical or mechanical apparatus that automatically adjusts yawing motions brought on by crosswinds or other disturbances, is an additional choice.
Additionally, using a dihedral wing design can also improve directional stability. Dihedral refers to the upward angle of an aircraft's wings when viewed from the front. The angle creates a stabilizing effect, preventing the aircraft from rolling excessively during flight and maintaining its intended direction.