TAER Data Exceptions
From ASPMHelp
TAER Data Execptions
If no circle record exists for an TFMS record (about 20% on next day and about 2% on next day plus one day), then start of demand is wheels-off plus ETE and end of demand is wheels-on (same as SAER).
If the flight is less than 100 miles long, then the TAER is calculated from the 40 mile crossing.
If no weather data exists, then we use VMC values.
If no equipment match exists, then turbine is used.
If a five-factor match is not found in the means table, then default values of the overall average at the specific 40-mile approach angle (over all factors) are applied.
