All changes to tower
| Date | Change | Source |
|---|---|---|
| 21 Feb 2021 | 1-8: nominal added; 3-8: canons added; 3-7: turning added | Personal tuning records (Nigel Taylor) via Email |
| 26 Sep 2020 | 1-4,7: diam added,5,6,8: diam amended,1,2: canons added | David Sloman via 00014008 |
| 23 Jun 2017 | 1-8: frameid added; frame info added | David Sloman via e-mail |
| 22 Jun 2009 | PN start time added | SCACR 2008 Report & H'book for 2009 via JCB |
| 24 May 2008 | PN info added | SCA 2007 Report via JCB |