All changes to tower
| Date | Change | Source |
|---|---|---|
| 31 Oct 2016 | 1-4: nominal added; frame: date,layout amended,truss added | Will Ruck via 00011820 |
| 26 Sep 2009 | 1-4: turning info added | John Baldwin via database |
| 1-4: frame id added; frame info added | Simon Ridley via e-mail | |
| 7 Jul 2004 | u/r added | Tim Jackson#65 (info from Steve Coleman) via e-mail |