Explains why ZH104 was dispatched to Lake Charles Chennault, Louisiana last month.Royal Air Force brought forward the date when its E-3 Sentry aircraft will go out of service to December 2022, which is nine months before the replacement aircraft are expected to enter service. It will also reduce the size of the Sentry fleet from six to three aircraft, with effect from January 2020.
Needless to say, catch them while you can.