When using RNAV for 1 or 2 Nav, which minima are applicable?

• A. LNAV mins
• B. VNAV mins
• C. LNAV/VNAV mins
• D. APV mins

Answer: (A)

RNAV approaches can provide different minimums depending on whether vertical guidance is available and what navigation sources are being used. When you are using RNAV with just one navigation source, you only have a lateral path to follow; there is no validated vertical path from the procedure. That makes the operation a non-precision approach, so the minimums you fly are LNAV minima.

Vertical guidance minimums, such as LNAV/VNAV or LPV (APV), require either a certified vertical path on the procedure and the appropriate equipment (like SBAS or Baro-VNAV) and capability in the aircraft. Merely having a second navigation source doesn’t automatically imply you’re using vertical guidance for the approach.

So in the scenario of RNAV with one or two nav sources, LNAV minima are the applicable choice because they reflect lateral guidance only, unless the procedure and aircraft explicitly support vertical guidance and the appropriate minima are published for that path.