The Altitude Advisor displays altitude increments in 500-foot intervals for altitudes below 4000 feet. This applies regardless of whether VFR/IFR or Westerly/Easterly is selected. This is due to specific airspace requirements in certain areas, such as the DC Special Flight Rules Area (SFRA), where non-standard directional altitudes at lower levels are utilized. For altitudes above 4000 feet, the Altitude Advisor adjusts to show increments based on the standard VFR/IFR or Westerly/Easterly directional rules.
Altitude Advisor Showing 500-Foot Increments Below 4000 Feet
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