What is the function of VNAV?

Prepare for the Delta 737 PA-LOD Exam with flashcards and multiple choice questions. Each question includes hints and explanations, ensuring you're ready for exam day!

Multiple Choice

What is the function of VNAV?

VNAV is the system that manages the aircraft’s flight path and speed to satisfy waypoint crossing restrictions. It calculates the required lateral path to the next waypoint and the vertical profile, plus the speed needed to meet constraints such as crossing altitude or speed at specific points. It then commands the autothrottle and flight guidance to follow that path, adjusting climb/descent and speed as needed to stay on plan. The other statements describe only partial or unrelated functions. VNAV isn’t just wind-correction updates, isn’t limited to controlling altitude, and doesn’t tune navigation radios. It’s about steering the route and managing speed to meet the crossing requirements of each waypoint.

VNAV is the system that manages the aircraft’s flight path and speed to satisfy waypoint crossing restrictions. It calculates the required lateral path to the next waypoint and the vertical profile, plus the speed needed to meet constraints such as crossing altitude or speed at specific points. It then commands the autothrottle and flight guidance to follow that path, adjusting climb/descent and speed as needed to stay on plan.

The other statements describe only partial or unrelated functions. VNAV isn’t just wind-correction updates, isn’t limited to controlling altitude, and doesn’t tune navigation radios. It’s about steering the route and managing speed to meet the crossing requirements of each waypoint.

More practice questions