What data does the Minimum Climb Gradient Tool use?

It uses Approach Climb Gradient charts from the aircraft’s AFM (Aircraft Flight Manual). These charts are based on:

• One-engine inoperative
• Approach flap configuration
• Go-Around or Maximum Takeoff Thrust settings
• Inputs like airport altitude, OATC (outside air temperature corrected), and actual landing weight

Depending on the aircraft, the output may be shown as:

• Gross Climb Gradient (%), or
• Rate of Climb (ft/NM)