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:

RNAV (GPS) Y and Z approaches for the same runway are designed for different aircraft types, with Y generally suited for single-engine piston aircraft and Z for jets.
These distinct approaches often feature varying weather minimums, aircraft equipment requirements, pilot certifications, step-down fixes, altitudes, and missed approach instructions.
Pilots must select the approach most appropriate for their aircraft capabilities and qualifications, informing Air Traffic Control (ATC) if they are unable to comply with the criteria of a requested 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.