Ryanair Call-signs
Can anyone shed light on the call-sign naming convention used by Ryanair. Some flights seem to use their actual flight number, whereas others use different call-signs to their flight number. Why two systems?
Where separate call-signs are used from the flight number these are invariably totally different on the inbound and outbound sectors (e.g. RYR99TR in and RYR35LK out).
Thanks
airsmiles