All changes to tower
| Date | Change | Source |
|---|---|---|
| 26 May 2019 | 1-6: nominal added; 1-5: (app)wt added | Chris Pickford via 00013430 |
| fr1: material amended,truss added | Chris Pickford via 00013430 | |
| 12 Jun 2018 | 1-6: turning,canon info added; frame layout added | Robert Palmer via 00012915 |
| 10 Nov 2016 | 1-6: frameid added; frame info added | John Baldwin via database |