For revenue flights, what speeds are used for VNAV climb planning in indicated speed and Mach?

For revenue flights, what speeds are used for VNAV climb planning in indicated speed and Mach?

• A. 270 KTS / .76M
• B. 300 KTS / .80M
• C. 260 KTS / .74M
• D. 320 KTS / .82M

Answer: (B)

For VNAV climb planning on revenue flights, a fixed target climb speed is used to balance a good climb rate with efficiency and predictability. The standard profile for this aircraft is 300 knots indicated airspeed and Mach 0.80. This pair provides a solid climb performance early in the departure, accelerates you efficiently toward cruise, and aligns with common flight management practices for smooth transitions to higher altitudes. The other options are less suitable because they either throttle back the climb too much (slower indicated climbs that prolong time to altitude and increase fuel burn) or push toward higher speeds that aren’t typically used in the initial climb phase (Mach 0.82 with 320 KTS can exceed efficient climb envelopes and complicate clean-up and throttle management).

For VNAV climb planning on revenue flights, a fixed target climb speed is used to balance a good climb rate with efficiency and predictability. The standard profile for this aircraft is 300 knots indicated airspeed and Mach 0.80. This pair provides a solid climb performance early in the departure, accelerates you efficiently toward cruise, and aligns with common flight management practices for smooth transitions to higher altitudes.

The other options are less suitable because they either throttle back the climb too much (slower indicated climbs that prolong time to altitude and increase fuel burn) or push toward higher speeds that aren’t typically used in the initial climb phase (Mach 0.82 with 320 KTS can exceed efficient climb envelopes and complicate clean-up and throttle management).