EE Lightning escorting a Tu-95 Bear

In article ,
"Enzo Matrix" wrote:

XR753 was one of sixteen aircraft ordered from BAC to contract KD/2T/079.
The aircraft were ordered as F3s but were delivered to interim F6 standard -
officially designated F Mk.3ER/6(Int).

First flight 23-6-65, piloted by RP Beamont.

Service with:
CFE, 16-11-65
5 Sqn
23 Sqn
BAC Warton, 21-3-68, where it was converted to full F6 standard.
FCTU, 18-7-69, coded T and later U
23 Sqn, coded V
5 Sqn, coded B
23 Sqn, during early 1975, coded A
5 Sqn, coded F and later A
11 Sqn, coded A and later BA. The BA code application would have coincided
with the application of air defence camouflage scheme.
5 Sqn, during 1984, coded AG (although possibly AC)
11 Sqn, Feb 87, coded BP.

Withdrawn from use in early 1988, it was delievered to RAF Leeming on
24-5-88 where it was used for BDR training.

Enzo, can you translate what those designations mean to those of us who
are clueless?
Thanks.