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Thread: How do we calculate Endurance (E) for calculating PNR?
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Old 15th July 2009 | 16:19
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BOAC
Per Ardua ad Astraeus
 
Joined: Mar 2000
Posts: 18,575
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From: UK
Simplest way is to use (fuel on board LESS Final Reserve)/Fuel Consumption at cruise level. If it is a PNR for you with a 'panic' factor built in I would also take off an extra bit for holding/approach etc.
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