All changes to tower
| Date | Change | Source |
|---|---|---|
| 30 May 2020 | fr2: truss added | Tim Jackson via e-mail |
| 23 May 2020 | 1,2,4,6: frameid amended; fr2: details added; fr1: layout added | Tim Jackson via e-mail |
| 28 Oct 2019 | frame: truss added | Tim Jackson via e-mail |
| 30 Oct 2017 | 1-8: frameid added; frame info added | David Sloman via e-mail |
| 1 Mar 2007 | Tenor nominal added (F-21c) | via pNBR |