Thread: Cruise altitude
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Old January 25th, 2008, 16:04   #15
B767Driver
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Default Re: Cruise altitude

Quote:
Originally Posted by ScottG View Post
But specifically now I am looking at obtaining max ground speed in a turbine powered airframe......is it as simple as climbing until you can't maintain max IAS(EAS)?
Yes, above this altitude density falls faster than temperature. Ultimately, the TAS is derived by the amount of IAS multiplied by the atmospheric density ratio. So, your fastest TAS is also the altitude where you achieve your fastest IAS.

Max IAS will be achieved around FL270.
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