ARW wrote:

I cannot find a plane landing at Doncaster on the 12th (10.10am to
10.20am ish) that must have landed (I could not see the runway) I was
halfway between Tickhill and Bawtry.

Are military plane hidden from that site?

I don't know if military planes have ADS-B transmitters, or some other
system, or maybe they're allowed to turn them on/off as required?