Good subject for a history study Cogwheel.
Australian aviation, military, airlines, GA and Sport and Rec owe a lot to the legacy of the Bellman hangar.
There is a good deal of stuff in Vol 1 of a book about ComEng by John Dunn ISBN 1877058424. Can be viewed on line at the following link. Look at pages 67 to about 70.
Comeng: A history of Commonwealth Engineering: Volume 1: 1921-1955
There is also some info at
http://www.asha.org.au/pdf/newslette...r37-2_2007.pdf
Several of the Bellman Hangars at East Sale appear to have been joined end to end in pairs to make longer hangars.
There is a Bellman at Waikerie, which DCA "gifted" to the gliding fraternity to facilitate the holding of the World Gliding Championships there in the 1970s. Seems Sir Donald Anderson, then director General of DCA was an old Waikerie lad. I understand that it was brought from Mount Gambier.