What is the primary characteristic that differentiates a Localizer Performance (LP) approach from a Localizer Performance with Vertical Guidance (LPV) approach?

Question: What is the primary characteristic that differentiates a Localizer Performance (LP) approach from a Localizer Performance with Vertical Guidance (LPV) approach?

Answer options:

• LPV approaches require larger RNP (Required Navigation Performance) values. ✅ LPV approaches provide glideslope guidance, whereas LP approaches do not.
• LP approaches use a Decision Altitude (DA), while LPV approaches use a Minimum Descent Altitude (MDA).
• LPV approaches are only available at airports with control towers.

Correct answer: LPV approaches provide glideslope guidance, whereas LP approaches do not.

Explanation: The fundamental difference is that LPV approaches provide vertical guidance similar to an ILS, using a Decision Altitude (DA), while LP approaches provide lateral guidance only and use a Minimum Descent Altitude (MDA).