I was discussing equivalent airspeed errors with a student and repeating the mantra I got from all my previous instructors, that equivalent errors are negilable below 200 kt's and 10,000 feet. I understand it is due to compression of air inside the pitot tube and it makes sense that this would happen at high airspeeds but why does it increase with pressure altitude?
I'm thinking also that in practice this error is rarely calculated since at these types of speeds and altitudes most pilots would be more concerned with a Mach number....
Any ideas?
I'm thinking also that in practice this error is rarely calculated since at these types of speeds and altitudes most pilots would be more concerned with a Mach number....
Any ideas?