Aircraft FAQ
Can I do an RNAV / RNP / LNAV / VNAV / LPV approach in the CSS 737 Classic?
The 737 Classic is not equipped with GPS so it cannot do some of the more modern approaches.
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All of these approaches require GPS, which the CSS 737 Classic is not equipped with. Additionally, the FMC software does not allow for VNAV approaches.
Your best substitute is using V/S mode and manually calculating the vertical speed to maintain the proper glidepath angle!
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Source: CSS Launcher User Manual, Rev. 5 — December 2025.