Certified Flight Instructor (CFI) Practice Exam

What does the notation V1 imply during the takeoff process?

1. Minimum speed after engine failure

2. Maximum speed before which critical actions are taken

3. Speed best angle of climb

4. Stalling speed in specific configurations

The correct answer is: Maximum speed before which critical actions are taken

The notation V1 during the takeoff process refers to the maximum speed before which critical actions, such as aborting the takeoff, must be taken if there is an engine failure. This speed is crucial because it represents a point in the takeoff roll where the pilot must make a decision. If an engine fails before reaching V1, the takeoff can be safely aborted. However, if an engine failure occurs after V1, continuing the takeoff is the safer option because there may not be enough runway left to stop safely. V1 is determined based on various factors, including aircraft weight, runway length, and environmental conditions. Its primary purpose is to ensure that pilots have a clear guideline for decision-making during a critical phase of flight, making it essential for safety during takeoff. Understanding V1 and its implications is vital for pilots in managing engine failures and ensuring a successful takeoff.