Welcome to the new B.I.R.D. Forum. Please be sure to read the "New Member / New Registered ? Please Read" thread in the Coffee Shop.
This contains some important information.
To become a full member ( £5.90 a year ) simply click on your user name near the top on the right
I hope you enjoy the new site ................ Jaws ( John )
I would be surprised if you couldn’t as i don’t think any changes were made to the frame/sub frame during the lifetime of the Blackbird (Other than cosmetic). All part of the ’continuous improvement’ programme. Ahem.