All changes to tower
| Date | Change | Source |
|---|---|---|
| 11 Mar 2013 | 1-6: turning, frame id added; frame info added | David Sloman via 00010308 |
| 8 Mar 2013 | 1-5: nominal added; 6: nominal amended | Philip Denton via 00010304 |
| 10 Aug 2005 | Note not F | Nick Bowden#55 via e-mail |