Plain English Meaning

Computer programs that do the flight planning math for you. You enter the details about your aircraft, route, and conditions, and the program works out the numbers you would otherwise calculate by hand from the performance charts.

Full Definition

Software tools that calculate the performance values needed for a flight — such as takeoff and landing distances, fuel burn, climb performance, weight and balance, and route timing — by combining aircraft performance data with current variables like weight, weather, , and .