## Weighing the Aircraft and Determining the Empty Weight Center of Gravity

Section Weight and Balance Theory, explained the theory of weight and balance and gave examples of the way the center of gravity (CG) could be found for a lever loaded…

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## Center of Gravity (CG) and Mean Aerodynamic Chord (MAC)

Center of Gravity (CG) In addition to overloading or drastically reducing the aircraft’s weight, the distribution of weight is also a concern. When aircraft equipment is changed, the person making…

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## Location of Datum

The location of the datum is not important, but all measurements must be made from the same location. Datum Forward of the Main Wheels—Tailwheel Landing Gear Locating the CG of…

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## Empty Weight Center of Gravity Formulas

A chart such as the one in Figure 1 helps the pilot visualize the weights, arms, and moments when solving an EWCG problem, but it is quicker to determine the…

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## Determining the Center of Gravity

When the aircraft is in its level flight attitude, drop a plumb line from the datum and make a mark on the hangar floor below the tip of the bob.…

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## Preparation for Weighing

In general, weight procedures may vary with the aircraft and types of weight equipment employed. The weighing procedure contained in the manufacturer’s maintenance manual should be followed for each particular…

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## Weighing Requirements and Equipment for Weighing

Requirements Regulations do not require periodic weighing of privately owned and operated aircraft. Such aircraft are usually weighed when originally certificated or after major alterations that can affect the weight…

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