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Old 27th April 2026 | 19:52
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darkstar99
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Joined: Jul 2006
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From: oxford
Hi.
​​​​​​Index and MAC percent are two different things. MAC percent is a physical place. You can touch it.

Index is a convenient, dimensionless moment (usually scaled and offset so always positive)

Index = (((H_arm - ReferenceStation)* Mass of item) / ScalingConstant) +offset.

Substitute H_arm as percent MAC and rearrange formula.

H_arm= LEMAC+MAC*PercentMAC

Hope this helps.
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