Gulfstream's super-midsized G280 and ultra-large-cabin, ultra-long-range G650 made their debuts in Australia, appearing on the static line at the Avalon show.
The two aircraft set a series of potential city-pair records en route to the event, with the G650 registering a world record between Honolulu and Auckland, flying 3,868nm (7,160km) in 7h 57min.
The G280, meanwhile, set three to-be-verified records on its journey to Avalon. It took off at maximum weight from Carlsbad, California, where it demonstrated its take-off capabilities from the short 1,492m (4,900ft) runway.
It then flew six people - three passengers and three crew - 2,322nm to Honolulu in 5h 31min at an average speed of Mach 0.83. The aircraft then covered the 2,292nm from Honolulu to Pago Pago in 5h 12min at an average speed of M0.83.
The flight from Pago Pago to Melbourne, a distance of 2,846nm, took 7h 16min at an average speed of M0.80. The G280 has set 22 city-pair records since it entered service in 2012. The aircraft's appearance at Avalon 2013 is part of a world demonstration tour.
Gulfstream has 208 business jets in service in the Asia-Pacific region - a fleet that has tripled in size in recent years, according to the airframer. The G450, G550 and G650 are of particular interest to customers in the region due to their large cabins and range, it says.
Gulfstream claims a 46% share of the region's large-cabin aircraft market.