Vertical Speed Indicator: Which instrument indicates the vertical velocity, at which the UAV is ascending or descending?

Vertical Speed Indicator: Which instrument indicates the vertical velocity, at which the UAV is ascending or descending?

• A. Altimeter
• B. Airspeed Indicator
• C. Vertical Speed Indicator
• D. Altitude Indicator

Answer: (C)

The question is testing how we read vertical motion in a UAV. The instrument that shows how fast the aircraft is changing its altitude is the vertical speed indicator. It displays the rate of climb or descent, typically in feet per minute or meters per second. Positive values mean the UAV is ascending, negative values mean it’s descending. This is different from instruments that show the current altitude (altimeter or altitude indicator) and from the airspeed indicator, which shows how fast the aircraft is moving through the air. The vertical speed indicator doesn’t tell you how high you are right now; it tells you how quickly your altitude is changing, which is crucial for smooth climbs, descents, and precise flight profiles.

The question is testing how we read vertical motion in a UAV. The instrument that shows how fast the aircraft is changing its altitude is the vertical speed indicator. It displays the rate of climb or descent, typically in feet per minute or meters per second. Positive values mean the UAV is ascending, negative values mean it’s descending. This is different from instruments that show the current altitude (altimeter or altitude indicator) and from the airspeed indicator, which shows how fast the aircraft is moving through the air. The vertical speed indicator doesn’t tell you how high you are right now; it tells you how quickly your altitude is changing, which is crucial for smooth climbs, descents, and precise flight profiles.