(by 10000 ft, the atmosphere has 50% less pressure than at sea level)
C154:
Actually, 50% Sea Level Pressure occurs about 18,000' MSL.
Isn't the -400 Vy @ MTOW going to be closer to 315/0.84?
I just plugged it into the AeroSim program and got 340/.83 at CI=0.
Last week out of Taipei at MTOW I got 360/.8xx at CI=100.