PPRuNe Forums - Climb performances

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alpinehelicopter

29th October 2003 21:21

Climb performances

In some Flight Manual I noticed, that helicopters (like the EC120 or Lama) climb better in higher altitudes than at sea level:

at 2000ft ISA: 600ft/min
at 3000ft ISA: 700ft/min

I expected contrary because of the decreasing density. Maybe an aerodynamic reason....?

Does someone know the answer?

Thanks for answering!:ok:

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