All changes to tower
| Date | Change | Source |
|---|---|---|
| 6 Mar 2025 | PN amended | Paul Smith, Tower Captain #008328 |
| 5 Aug 2023 | 1-6: turning added; frame Fr1: truss, layout amended | Malcolm Taylor, citing CB Glos, Bliss and Sharpe |
| 22 Dec 2013 | fr1 (being first lowside CI frame, by JT): historically important | David Knight via e-mail |
| 27 Jul 2013 | 1-6: nominal added | George Dawson via 00010480 |
| 11 Jul 2013 | PN info added | Paul Smith (Alderton Tower Captain) via e-mail |
| 16 Oct 2009 | 1-6: frame id added; frame info added | Simon Ridley via e-mail |