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Old 23rd Mar 2011, 18:15
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WannaBeBiggles
 
Join Date: Mar 2006
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Constant speed climb and EAS

Hi All

I came across this question and it got me thinking.

Climbing at X which is Best L/D at a constant EAS
At a higher altitude EAS will be

a. Higher than X
b. Lower than X
c. The same as X

There are a number of variables which could be thrown in here.

i.e. Through and Isothermal layer or through an inversion layer.

I've always had trouble visualising what each speed is going to be doing in each condition.
I found a handy graph which showed CAS, TAS and MACH, but did not include EAS in the equation.

So if anyone can shed some light on the above, it'd be greatly appreciated.
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