To convert a moment value to an arm value to set up a Weight and Balance profile, use the following method:
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Identify the Moment Value and Corresponding Weight:
- Locate a moment value and corresponding weight that defines a corner of the Weight and Balance envelope.
- Example: 88.2 pound-inches at a corresponding weight of 2,300 pounds.
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Calculate the Full Moment (if Necessary):
- If the table shows moment values divided by a factor (e.g., divided by 1000 as MOMENT/1000), multiply the moment by that factor to get the full moment.
- Example: 88.2 × 1000 = 88,200 pound-inches.
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Divide Moment by Weight to Find the Arm:
- Divide the full moment value calculated in the prior step by the corresponding weight to determine the arm. The resulting value will be the arm value at the corresponding weight.
- Example: 88,200 ÷ 2,300 = 38.35 inches
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Repeat as Needed:
- Repeat the process for each point that defines the CG envelope.
Example CG Moment Envelope with Points that Degine the Envelope
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