Jet-A (Jedi? )
you cut yourself off there - the full is
Air Services Australia has rejected criticisms of the new National Airspace System by the 15,000 strong air traffic controllers union in the United States.
The US air controllers say the new system appears "high risk" because it will allow light planes to fly unannounced into the flight paths of commercial traffic.
Their union also says it is wrong to use the US model as a justification for the Australian system, because they will not operate with the same radar coverage.
Air Services Australia's chief executive Bernie Smith says the US model has a good safety record, despite high traffic density and worse weather, and is a legitimate model for Australia.
Mr Smith has denied safety will be compromised, saying the Australian system is subject to rigorous assessment of its suitability for Australian conditions.