What many might not know about the Navy B models was their radio/naviads fit. (I must say, I never heard anyone refer to them as 'Charlies'.)
When they arrived, equipped with (then) pretty much state of the art American radios, the Navy retrofitted them with (awfully old fashioned 'clunker', I think few would disagree) British radios etc as fitted to their other aircraft.
BUT... how did they go about doing this, I hear some ask? Did the Navy techs simply unscrew the canon plugs to disconnect the American kit? Oh, no, no, no, no... they *** CUT the looms - short of the canon plugs, making it impossible to re-fit the American radios and naviads later!!!
Only in Australia....