Originally Posted by
nachtmusak
My impression was not that they were wrongly calibrated, but that they were simply bad. It sounds like the barometric altimeters in the helicopter type in question might not be taking the helicopter's own backwash/downwash into account.
They weren't in a hover. And backwash, when in forward flight at 100 kts? Where are you coming up with this?
Do you understand what translational lift is?
If they were flying at 100 kts (which is roughly what speed they seem to have been going) their static ports will work fine.