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Old 24th October 2007 | 01:39
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Bullethead
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Joined: Nov 1999
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From: East side of OZ
On jet transport aeroplanes the unit used is usually ANM/1000kgs or GNM/1000kgs which gives a more useable result.

ANM/100kgs = TAS/fuel flow in 1000s kgs per hour.

GNM/1000kgs = GS/fuel flow in 1000s kgs per hour.

e.g. 470KTS TAS / 4.5 1000kgs per hour = 104.4 ANM/1000kgs

GNM/1000kgs will be more with a tailwind and less with a headwind.

Regards,
BH.
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