gtf
Does anyone know what it is in the North Atlantic (or what is normal) ?
The current proposals for reduced longitudinal separation (RLongSM) in the Shanwick/Gander areas are:
Normally position reports are provided every 10 degrees (approx 40 minutes). For the use of a RLongSM, the reporting frequency will be increased by the use of 20 minute ADS-C periodic contracts, in addition to waypoint reports.