TABOR41-44 & TABOR51-54
one flight has just passed over Scotland with KC-10 86-0034 RCH091 and the other is due over in about 30mins with KC-10 84-0192 RCH081
TABOR41 - 44 were due to be with RCH081 but not known if the flights have swapped tankers.
the following thanks to other forums and egroups
TABOR41 - 44 reported as 93-0549, 91-0393, 92-3889 & 93-0535