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What are the optimal cruise FL for CL650? How to determine?


Gábor
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5 minutes ago, Cameron said:

The optimal cruise is based on varying factors day in and day out. Headwinds, tailwinds, route, etc. There is no magic answer for this question. It's all about your flight planning!

Can I rely on the FL suggestion by Simbrief? Usually is always around FL370

Edited by Gábor
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Stick with Simbrief. I've done some comparison with ForeFlight performance calculations and they are very close between one another (and ForeFlight is based on the full Bombardier performance datasets). In general, the higher the better, unless unfavorable winds work against you (lower fuel flow and better KTAS up higher). If you're pushing max range, you might not be able to cruise at the highest flight level initially and will need to level off prior, and then step-climb up higher when lighter. Basically if you're struggling to get to your desired altitude, you're likely hot/heavy. Cruise lower for an hour then step up 2000 ft. 

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