If the center of gravity were here then it would pitch upward
If the horizontal stabilizer is this size then it will not catch air and will pitch up and down
Recommended size of vertical stabilizer for a stable flight
If the horizontal stabilizer is this size then it will pitch upward because it is too heavy
If the center of gravity were here then it would not pitch up/down, but fly straight
Recommended size of horizontal stabilizer for a stable flight
If the vertical stabilizer is this size then it will pitch upward because it is too heavy
If the center of gravity were here then it would pitch downward
If the vertical stabilizer is this size then it will not catch air and will yaw/roll (turn right/left)
Vertical stabilizer
Horizontal stabilizer
10-20% of the horizontal stabilizer size
10-15% of the wing area
20-25% of the wing area
30-50% of the wing area
60-70% of the horizontal stabilizer size
controls yaw and roll (left and right motion)
30-50% of the horizontal stabilizer size
controls pitch (up and down motion)
