[WadeH (Wade)]

Here is a curly one from left field as they say.

Yesterday (Friday 6th Oct. 06) I saw a large four engine (from the contrails) aircraft fly directly over Perth traveling from the north west to the south east and beyond. It looks something like a 747 shape and is at high altitude.

I have observed this aircraft before at approximately 6.30 am three times over the last couple of years. It flies the same route and altitude each time.

I was wondering if you may have any idea of what it is (e.g.: military) and its purpose (e.g. polar) and were it comes from and destination?

I have also sent this to Perth Observatory.

Any suggestions?