What is the primary function of the aircraft’s pitot tube?

• A. To measure altitude
• B. To measure airspeed
• C. To control cabin pressure
• D. To ensure fuel efficiency

Answer: (B)

The primary function of the aircraft's pitot tube is to measure airspeed. The pitot tube operates by measuring the pressure of the air flowing into it as the aircraft moves through the atmosphere. This pressure is known as dynamic pressure, which is created due to the aircraft's forward motion. The airspeed indicator in the cockpit uses this information to provide the pilot with an accurate reading of the aircraft's velocity relative to the surrounding air, which is crucial for safe flight operations.

Understanding the role of the pitot tube in measuring airspeed is fundamental for pilots, as it helps them maintain control of the aircraft, especially during critical phases of flight such as takeoff and landing. Accurate airspeed readings are vital for ensuring the aircraft operates within safe operational limits to prevent stalling or over-speed conditions.