All changes to tower
| Date | Change | Source |
|---|---|---|
| 16 Nov 2021 | 1-6: turning added | consultation with the Tower Captain via James Hedgcock |
| 10 Nov 2021 | 1,6: nominal amended; 2-5: nominal added; 3-4: diameter amended; 1-2,5: diameter added | Nigel Taylor's personal tuning records via David Sloman |
| 29 Aug 2013 | Frame layout added | John Baldwin via database |
| 8 Nov 2004 | Tenor nominal added | Bill Hibbert via e-mail |
| 25 Jan 2004 | URL changed | Gary J Sheppard: SDGR webmaster via e-mail |
| 8 Jan 2004 | URL added | Gary J Sheppard: SDGR webmaster via e-mail |