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Ursprungligen postat av
KlokOchSnygg
Planens motorer är inte designade för att "svälja" så mycket luft. Förutom att planen inte håller för hastigheten klarar inte motorerna att släppa igenom all luft utan börjar istället fungera som en broms
Planen har inga problem med de hastigheter som uppnåddes.
1. The speed of the aircraft that hit the WTC was officially reported as between 500mph and 560mph ground speed, calculated by the observed point to point distance covered over time.
2. A Boeing 767-200 airframe is rated to .86 of Mach speed (speed of sound) at any altitude before the risk of structural failure. It as the aircraft approaches the speed of sound when the properties extreme high and low pressure areas can have destructive effects on the airframe. This figure is as with all limits set conservatively.
3. The speed of sound at approximate sea level is 761 mph on a standard day.
Therefore the theoretical maximum speed the 767-200 can reach intact is, conservatively, .86 x 761mph = 654mph or approximately 100mph above the officially reported speed of AA11 or UA175.