Jon Sanders became the first person to sail single-handedly twice around the world, non-stop and unassisted, sailing the Perie Banou from Fremantle on 6 September 1981 and arriving home again at Fremantle on 31 October 1982. The double circumnavigation broke records for the longest single-handed voyage at 48,510 miles, and the longest period alone on board a yacht at 419 days, 22 hours and 10 minutes. This voyage is discussed in Sanders' 1983 book Lone Sailor, Q.V.
