Both the CAC CA-4 and the CA-11 Woomera have gunbarbettes behind the engines.
I have seen some pictures of them.
Now I am interresting who the complete system was from gunner to the barbettes.
Is there anybody who has drawings/pictures which showed this system?
Thanks
Jan
The Moorabin Air Museum reportedly had a barbette about 20 years back so you could try them for info.
You could also try the Aus Archives but you may find that they have very little
Two they do have are
and
The latter is suspect as it is dated post war