Or as Fireburn says ‘52. 53.? I was at High School then, and always getting into trouble looking out the
window at the passing parade of aircraft on final approach to Adelaide Airport.
Did have its advantages ... I got kicked out of class one day when trying to spot the Vulcan.
It flew a figure of eight low level over Adelaide and out on the oval I had the best view in town.!
What a science fiction shape that was in the day. Sadly, crashed back at Heathrow.