REVELATIONS that Australia's new $1.9bn icebreaker may not be able to pass under the Tasman Bridge in order to refuel at Hobart's major maritime terminal have been labelled as "gobsmacking" by a state MP. As reported by the Sunday Tasmanian, there are questions about whether the RSV Nuyina - more than 1.5 times the size of the now decommissioned Aurora Australis - will be able to transit underneath the bridge. TasPorts and the Australian Antarctic Division confirmed "risk management" and "vessel simulations" were underway, and one option being considered is the vessel travelling to Burnie port to refuel - a return trip of about 1200km.