Optimum Flight Level The flight crew should choose a flight level - TopicsExpress



          

Optimum Flight Level The flight crew should choose a flight level that is as close to the optimum as possible. To obtain the optimum flight level use the chart in the QRH or in the FCOM (Refer to PER-CRZ-ALT-10 CRUISE LEVEL CHARTS - GENERAL) As a general rule, an altitude that is 4 000 ft below the optimum produces a significant penalty (approximately 5 % of fuel). Flight 8 000 ft below the optimum altitude produces a penalty of more than 10 % against trip fuel. (The usual contingency allowance is 5 %). If flight above optimum (up to ceiling) is intended the increase in consumption may reach 3 %. Source: FCOM PRO-NOR-SOP-02
Posted on: Thu, 19 Sep 2013 21:30:00 +0000

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