PPRuNe Forums - View Single Post - 747-400 Buffet margin versus turbulence speed
Old 11th Apr 2011, 20:03
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Feather #3
 
Join Date: Feb 2000
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The turbulence penetration speed isn't about buffet, it's about gust loading.

If you never fly >1,000ft below the MAX ALT in the FMS, there won't be a problem. Note, this assumes your protection limit in the FMC database is set at 1.3g; some aren't!!

G'day
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