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ZFW and TAXI fuel

ahinterl
in PMDG MD-11 (Legacy Version)

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Ref.: FMS.10.21 Section "Note: None of the calculations of weight data account for ballast fuel[...]".My understanding is that when BLST fuel is defined I need to increase ZFW by the amount of BLST fuel (the formula ZFW = TOGW + TAXI - BLOCK changes to ZFW = TOGW + TAXI - BLOCK + BLST).Am I correct when I say that TAXI is added to ZFW because of the assumption that in the "worst" case, (almost) all of it could remain in the tanks?

Andreas, LOWW

- Nihil sumus et fuimus mortales. Respice, lector: In nihil ab nihilo quam cito recidimus.

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