All changes to tower
| Date | Change | Source |
|---|---|---|
| 18 Oct 2017 | 1-6: nominal added; fr1,fr1A: truss added | Tim Jackson via 00012509 |
| 10 Jun 2016 | Indication of toilet facility added | Colin Turner via e-mail |
| 13 Feb 2011 | URL added | Association website via JCB |
| 1-6: canons, frameid added; 6: turning added; frame info added | Mike Chester via 00009124 | |
| 20 May 2007 | Tenor weight is precise not approx | Chris Pickford (RHD / WBF info) via pNBR |