All changes to tower
| Date | Change | Source |
|---|---|---|
| 19 Sep 2009 | 1-6: turning, frame id added; 1-5: nominal added; | Andrew Higson via 00008142 |
| 4: wt corrected; frame info added | Andrew Higson via 00008142 | |
| 13 Feb 2006 | Fri PN removed: "no longer hold a practice" | Chris Woodcock via e-mail |