Plain English Meaning

A small calculator built specifically for the maths a pilot needs to plan and fly a trip. It works out things like how long a leg will take, how much fuel you'll burn, and how the wind will push you off course.

Full Definition

A handheld calculating device, mechanical or electronic, used by pilots to solve common flight planning problems such as time, speed, distance, fuel burn, wind correction, true airspeed, density altitude, and weight and balance.

Context Anchor

Used during flight planning, cross-country training, navigation lessons, and sometimes in the cockpit when updating time, fuel, or wind calculations.