All changes to tower
| Date | Change | Source |
|---|---|---|
| 17 Mar 2020 | 1-6: nominal,turning added; 5: wt amended | Nigel Taylor via 00013658 |
| 18 Feb 2020 | No longer GF S | Sam Austin via e-mail |
| 27 Feb 2017 | fr1: truss amended | Tim Jackson via e-mail |
| 9 Feb 2010 | Frame: material, truss, layout added | John Arthur via e-mail |
| 28 May 2009 | 1-5: precise wts added, diams corr'd; 1,2,3,4,6: canon info added | Andrew Bull via 00007495 |