Discussion
An aircraft descends 3000 ft in 4 minutes. The vertical speed indicator should read approximately
Answer: C
Correct answer: 750 ft/min down
\[ \frac{3000\ \text{ft}}{4\ \text{min}} = 750\ \text{ft/min.} \] The vertical speed indicator will settle at this value once the transient has passed, but it will lag behind the start of the descent by several seconds because it works by metering air through a calibrated restriction - which is why the attitude indicator, not the vertical speed indicator, is used to initiate a change.
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