niksan29

Formula for climb gradient % and feet pr NM and climb desentangel

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Posted (edited)

How to calculate this data without tables?

 

Edited by niksan29

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Quick rule of thumb: multiply your groundspeed in knots by the gradient in % and that will give you the rate of climb (or descent) you require.

E.g. 5% gradient at 150kt = 750fpm.

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Posted (edited)

how is it calculated climb desent angel?)

Edited by niksan29

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In the flight deck or theoretically?

For a rough rule of thumb, gradient in % × 0.6 will approximate the angle.

If you want an exact answer then you would need to get your calculator out and do some trigonometry 😉

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