All changes to tower
| Date | Change | Source |
|---|---|---|
| 27 Feb 2017 | fr1: truss amended | Tim Jackson via e-mail |
| 6 Oct 2016 | 1-6: turning added; frame: truss,layout added | John Arthur via 00011786 |
| 4 Aug 2016 | 1-6: frameid added; frame info added | David Sloman via e-mail |
| 8 May 2009 | 1-5: nominal added; 4: diam revised | Andrew Higson via 00007422 |
| 7 Dec 2006 | Tenor nominal added (B-33c) | GAD NBR spreadsheet via pNBR |
| 23 Sep 2004 | Slight change to dedication to match Crockford entry | Graham Nabb check via e-mail |