Weight and balance are critical factors that affect the safety, stability, and performance of an aircraft. Every aircraft has specific weight limitations and center of gravity (CG) ranges that must be maintained for safe flight operations. Aircraft maintenance technicians and pilots must understand these principles to ensure that an aircraft is properly loaded and within its approved operating limits.
The total weight of an aircraft includes the structure, engines, equipment, fuel, passengers, cargo, and other items carried on board. Proper distribution of this weight is just as important as the total amount. If the aircraft is loaded outside the approved center of gravity limits, it may become difficult or impossible to control during flight.
To maintain proper weight and balance, aircraft must occasionally be weighed and carefully documented. Maintenance personnel use specialized weighing equipment and follow established procedures to determine the aircraft’s empty weight and center of gravity. These measurements are recorded in official aircraft records and used when calculating loading conditions for flight.
Understanding weight and balance principles allows technicians and operators to correctly calculate aircraft loading, evaluate equipment changes, and ensure compliance with regulatory requirements. The following series introduces the terminology, procedures, equipment, and records used to determine and maintain proper aircraft weight and balance.
Weight and Balance Series
1. Introduction and Requirements for Aircraft Weighing
Overview of weight and balance principles and regulatory requirements for aircraft weighing.
View Topic →2. Weight and Balance Terminology
Definitions of key terms used when calculating aircraft weight and center of gravity.
View Topic →3. Procedures for Weighing an Aircraft
Step-by-step procedures used to accurately weigh an aircraft.
View Topic →4. Weight and Balance Equipment
Description of the equipment used for aircraft weighing operations.
View Topic →5. Loading an Aircraft for Flight
Methods for calculating proper aircraft loading before flight.
View Topic →6. Equipment Change and Aircraft Alteration
How equipment changes affect aircraft weight and balance calculations.
View Topic →7. Loading Graphs and CG Envelopes
Using graphs and charts to determine allowable center of gravity limits.
View Topic →8. Weight and Balance for Various Aircraft Types
Large Airplane, Helicopter, Weight-Shift Control Aircraft and Powered Parachutes Weight and Balance.
View Topic →9. Weight and Balance Records
Maintaining accurate records for aircraft weight and balance documentation.
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