Yes, Strikeathird, logically you are probably correct! It may be pointless to hang on to a redundant alpha, but surely not that confusing?
I don't think anyone assuming that we had another rural back in the station (which technically we do with the RUP) would bring the service to an operational halt. Rest assured all the people who need to know, know what is in our station. Could be construed as pointless to have to remove the A's (placed with loving care sob, sob), change all the Group, Brigade and Specific risk and response plans, automatic alarms, whiteboard magnets etc. Although we did survive the change from the 41, 42 days
Alpha doesn't necessarliy designate rural. Alpha was actually the "urban" vehicle when delivered and until 1998 carried the "urban" stowage kit and rescue gear (and was therefore lead structural/special appliance). Another Brigade in our Group has 2 x 24's and one of them has an "urban" stowage kit, the other "rural".
We do actually have two 24's. Maybe "alpha" will be replaced with another 24P and she can be ALPHA 24P LOL!!