PPRuNe Forums - View Single Post - Clarification about Penetration Speed on A320
Old 28th Mar 2016, 21:06
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Escape Path
 
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Originally Posted by CaptainMongo
Our FM:

"Turbulent air penetration speeds provide an optimum margin between low and high speed buffets."

Interesting that our limitations are:

Severe Turbulence (Recommended)

Above 20,000 feet: .76 Mach/275 KIAS

Below 20,000 feet: 250 KIAS


When our company modifies Airbus FCOM wrt limitations they annotate it in the Limitations chapter (i.e. - company limitation) - in this case they did not, so I don't know where the speed discrepancy (280 vice 275) above 20,000 feet came from.
I have the same speeds as you have in our company's FCOM. Although mine quotes 275 up to FL310 and 0.76 above that

Last edited by Escape Path; 28th Mar 2016 at 21:08. Reason: Added last bit of info
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