high flying
40,000ft
Guest
😕 how come when i fly to high altitudes in my airbus 319, my overspeed needle drops?
like from 370 knots down to 240 at over 40,000 ft????? 😕
2 Answers
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Lower air density. The average density of dry air is about 1.225 kg/m³ at mean sea level, decreasing with altitude.
True Air Speed(in kt) = Indicated Airs Speed(in kt) + FL/2
So is you are cruising at FL400 and indicating 240kts, your true airspeed is 440kts.
Check out http://www.b737mrg.net/downloads/b737mrg_thumbrules.pdf
40,000ft
Guest
hey,
thanks, thats informative! i saved a copy of that ta study a little later.
i didn't know that, gonna hafta bring up the calculator ta help me with some figures to. 😂
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