Long Range Climb Speed is prohibited above which flight level?

Long Range Climb Speed is prohibited above which flight level?

• A. Flight Level 320
• B. Flight Level 350
• C. Flight Level 300
• D. Flight Level 330

Answer: (A)

Long Range Climb Speed is an efficiency-focused climb profile that targets a specific airspeed to minimize fuel burn during the ascent. It works best in the lower to mid-altitude range where engine and aerodynamic performance align with the profile. There’s a published restriction that this LRCS technique cannot be used above a certain altitude, because at higher altitudes the thinner air and different performance margins make the LRCS schedule unsafe or non-beneficial. The limit is Flight Level 320, so LRCS is permitted up to and including FL320 but not above it. When climbing above that level, crews switch to the standard climb profile instead.

Long Range Climb Speed is an efficiency-focused climb profile that targets a specific airspeed to minimize fuel burn during the ascent. It works best in the lower to mid-altitude range where engine and aerodynamic performance align with the profile. There’s a published restriction that this LRCS technique cannot be used above a certain altitude, because at higher altitudes the thinner air and different performance margins make the LRCS schedule unsafe or non-beneficial. The limit is Flight Level 320, so LRCS is permitted up to and including FL320 but not above it. When climbing above that level, crews switch to the standard climb profile instead.