All changes to tower
| Date | Change | Source |
|---|---|---|
| 23 Jul 2010 | Fr1: truss, layout added | James Clarke via e-mail |
| 30 Jun 2009 | 1-6: canon info added; 1: wt corrected | Andrew Higson via 00007655 |
| 18 Mar 2007 | Although GF removed in 2002 these ARE a GF ring | Tim Jackson#108 via e-mail |