Hopefully this is the right forum for this. A bit of browsing on the Flight International archive yields this gem from 1974:
http://www.flightglobal.com/FlightPDFArchive/1974/1974%20-%201113.PDF
Then, five years later,
http://www.flightglobal.com/FlightPDFArchive/1979/1979%20-%200470.PDF
The...
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