As it's now the early hours of Friday morning in Oz and
rory2907 is almost certainly 
ZZZzzzzzz for several more hours yet and didn't respond to my question/request made 8:10 GMT this morning, I'll assume he can't or doesn't wish to post his own challenge and declare an Open House.
Rory; you're more than welcome to compete in this thread, but please just add "Open House if correct" to your answer in future (unless you do want to submit a challenge) and it will prevent a stalled thread while we wait to hear your wishes! See the Silhouette Challenge Guidelines below for the general thread etiquette and list of already used subjects to avoid challenge duplication
http://www.pprune.org/aviation-histo...est-lists.html