Return the ICAO AIRAC id for a date
Arguments
- date
a date (or a representation of it understood by
lubridate::ymd())
See also
Other airac:
airac_epoch(),
airac_interval(),
airac_year_epoch(),
cfmu_airac_epoch_number(),
cfmu_airac_epoch(),
cfmu_airac_interval(),
cfmu_airac()