All changes to tower
| Date | Change | Source |
|---|---|---|
| 1 Mar 2017 | Presence of simulator noted | David Katz, Tower Captain via e-mail |
| 28 May 2016 | 1-6: frameid added; frame info added | John Baldwin via database |
| 28 Feb 2007 | Augmented from 5 to 6 | Paul Mason via e-mail |
| 9 Jan 2005 | Tenor nominal (= G-25c) revised slightly (from 777.5Hz) | David Kelly via e-mail |
| 5 Oct 2004 | Tenor nominal added | David Kelly via e-mail |