Year 80 (LXXX) was a leap year starting on Saturday (link will display the full calendar) of the Julian calendar. At the time, it was known as the Year of the Consulship of Augustus and Domitianus (or, less frequently, year 833 Ab urbe condita). The denomination 80 for this year has been used since the early medieval period, when the Anno Domini calendar era became the prevalent method in Europe for naming years.
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... Introduced in 1961 the model 80 was the first of the Queen Airs to have the more modern swept tail ... Gross weight on the 80 is 8,000 lb (3,600 kg) ...