Been watching his flight for a while..any ideas?

[jedthebass]

This plane has been circling for some hours now and has moved from Irish sea to SW Scotland and now seems to be heading south again.Cant find much about IAS medical.

[speedbird1960]

It looks like it some kind of calibration flight as its using a Cobham Flight Inspection Callsign (CLB) http://www.airframes.org/fleet/clb

More information about what they do: https://www.cobham.com/about-cobham/...-services.aspx

[jedthebass]

Lovely.many thanx speedbird.