Keywords: Air-tractor in motion.jpg en The Air tractor - the Vickers REP monoplane was damaged in Australia and never flew in Antarctica however was used minus its mainplanes as a tractor Cropped from original at http //acms sl nsw gov au/item/itemLarge aspx itemID 61306 State Library of New South Wales Charles Francis Laseron 1912 PD-Australia Air-tractor sledge Charles Laseron |