Guys, I am resurrecting this old thread.
I found the below:
"At sea level, on a typical servo altimeter, the tolerance in feet from indicated is:
+/- 60 feet
+/- 75 feet
+/- 30 feet <= correct answer
+/- 70 feet
Servo assisted altimeters are accurate to 1mb, ±30ft at sea level and ±100ft at 40 000ft.
However, required accuracy is +/- 60ft."
I am not English native and I do not fully understand the difference between the 30ft mentioned, and the 60ft.
Can somebody explain this to me ?
Thank you.