Just out of interest, the Avro RJ is capable of Cat 3B autolands whilst the BAe 146 is not. The airbrake is deployed by 500' AAL on an autoland approach as opposed to 100'AAL on a normal approach. If you're watching an Avro RJ on approach and the airbrake has been out for a while before landing then there's a good chance an automatic landing is being carried-out.