What Is the Difference Between RNAV Z and Y Approaches?

Broadly speaking, the Y approach is more geared toward single-engine, piston-powered aircraft, and the Z approach more appropriate for jets.

Meg Godlewski

Wednesday, November 29, 2023 at 02:08 PM ET

Verified

It's important to pick the right approach for the aircraft you're flying. [Shutterstock]

Key Takeaways:

The FAA designs multiple RNAV approaches (e.g., Y and Z) for the same runway to accommodate different aircraft types, with Y approaches typically for piston aircraft and Z for jets.
These approaches can have significant differences, including varying weather minimums, required aircraft equipment, pilot certification, step-down fixes, altitudes, and missed approach instructions.
Pilots must select and request the RNAV approach appropriate for their aircraft and qualifications, informing ATC if they are unable to comply with the criteria for a given approach.

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Question: I am an instrument pilot in training at an airport that has two RNAV approaches for the same runway. One is labeled RNAV (GPS) Y RWY 16; the other is RNAV (GPS) Z 16. Why would the FAA create two GPS approaches to the same runway?

Answer: Broadly speaking, the Y approach is more geared toward single-engine, piston-powered aircraft, and the Z approach more appropriate for jets.