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Jun 26, 2019 at 20:49 vote accept Mike no smith
Jun 26, 2019 at 20:49
Jun 23, 2019 at 15:53 comment added Peter Kämpf @ymb1: TAS goes up with the square root of the density ratio (1.225 at SL, 0.46 at 30 kft), and I took the 220 KIAS as the baseline (220 x 1.63 = 359). The c$_L \cdot Ma^2$ of 0.4 is my experience for a regular, mildly supercritical airfoil; with a given Mach number of 0.63 the lift coefficient must be 1.0 for the product to become 0.4. Not a silly question at all; I'm grateful for you checking my answers.
Jun 23, 2019 at 14:46 comment added user14897 Always to the rescue :) But I'm a bit confused, isn't 140 KIAS at 30,000 ft 225 KTAS? And how does a result of 0.397 mean a drop to 1? (Apologies if it's a silly question, I tried to google some of the terms before asking for clarification.)
Jun 22, 2019 at 21:20 history edited Peter Kämpf CC BY-SA 4.0
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Jun 22, 2019 at 21:15 history answered Peter Kämpf CC BY-SA 4.0