Discussion
Match each stability quantity in List I with its definition in List II.
List I
A. Neutral point
B. Static margin
C. Tail volume coefficient
D. Mean aerodynamic chord
List II
1. Tail area times arm, over wing area times chord
2. Centre of gravity position giving neutral stability
3. The reference length for quoting positions
4. Gap between centre of gravity and neutral point
Select the correct match.
Answer: B
These four connect the weight and balance work of this topic to the stability and control that follows from it. The centre of gravity estimate is only meaningful once its position relative to the neutral point is known.
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