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Old 13th Jun 2011, 22:27
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JD-EE
 
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rudderrudderrat - The important lesson to pull from the math is that the mass makes no difference in the physics class model.
Speaking of math - how does Mach .82 become something under 300 knots IAS when literature I can find suggests Mach 1 is over 580 knots? (585 knots at FL290 is the number from Wikipedia with an increase with altitude indicated by the three data points given.) I guess no effort is made to translate pitot tube indicated speed into a true speed through the air? Will this have to happen when laser speed measurement becomes practical?

Last edited by JD-EE; 13th Jun 2011 at 23:55.
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