Aircraft systems and instrumentsQuestion 536 of 934

What does the red line on the airspeed indicator show?

  1. The maximum flap extended speed
  2. The never-exceed speed (VNE)
  3. The best rate of climb speed
  4. The stalling speed
Show answer

Correct answer: The never-exceed speed (VNE)

Operating above this speed is prohibited. It may result in damage or structural failure.

Source: Pilot's Handbook of Aeronautical Knowledge (FAA-H-8083-25C), Chapter 8: Flight Instruments — Airspeed Indicator Markings, page 211

Practice aircraft systems and instruments

Questions last reviewed: 18 October 2026