I understand what a yaw damper is for. I think the main problem I'm mulling over is the difference between pressure and density.
At the same EAS at 35,000' or at SL, the control effectiveness should be the same. But apparently it's not due to the density of the air...?
The pitot (or total) pressure equals the static pressure plus the dynamic pressure (1/2 rho V squared). Rho being the density. So what's the difference between the static pressure and the density (rho) included in dynamic pressure? Obviously there has to be density or else there would be no dynamic pressure, regardless of how fast the object was traveling.
Anyone have equations that explain this?