@Bristolian
As the BBC article states, the museum is sadly closed, but the dam can be walked around (well...... on 3 sides anyway!)
There's a good museum in Lincolnshire, that has a Lancaster, which you can pay & have a taxi-ride in!!!
I've been, but not in it!, & it's surprising how close you can get as they start it up!!
It's not just a case of hearing the Merlins, but
feeling them, as they vibrate on your rib-cage!
https://www.lincsaviation.co.uk/