Gents
Bear in mind that the Bras has a zero fuel weight of about 10.9 from memory and a max t/off of 11.9. One wouldn't need a 1000 kgs of fuel to operate the 30 min sector back to Adelaide. So indeed the Bras could lift a max payload from PLO with the temps up to about 38 (again from memory) The ASA F-27's couldn't operate at MTOW out of PLO either.