This change in the drag distribution creates a restoring moment.
2.
For missiles, positive static margin implies that the complete vehicle makes a restoring moment for any angle of attack from the trim position.
3.
In missile analysis, positive static margin implies that the complete vehicle makes a restoring moment for any angle of attack from the trim position.
4.
This ensures that any increased forces resulting from increased angle of attack results in increased restoring moment to drive the missile back to the trimmed position.
5.
If a vehicle is directionally stable, a restoring moment is produced which is in a direction " opposite " to the rotational disturbance.
6.
:. . . and the toppling or restoring moment is just the weight multiplied by the horizontal distance between its line of action ( a line vertically down from the centre of gravity ) and the pivot ( the line joining the points of contact of the two chair legs still on the floor ).
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