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Old 18th Nov 2010, 17:01
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NorthSouth
 
Join Date: Apr 2001
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JT:
then again, we would always fly them by hand
For a procedure that requires minimum 25 deg AOB (Cairns) I would have thought that was essential, especially when differences in actual vs forecast conditions dictate that the AOB you planned to use doesn't give you enough separation in practice so you have to crank in some more.

Comparing the two, it looks like the maximum turn radius on the Hobart chart (not to scale of course, so difficult to judge and would presumbaly be defined in any case by the regulatory required min horizontal separation from the obstacles) is not too far off what would be achieved by the required max 190 KIAS/min 25 deg AOB for the Cairns departure (around 2100m turn radius). But it's the OEI provisions that get me. What happens when you get just enough round the turn to point at the hilltops and one engine packs in, requiring an immediate roll-off to 15 degrees AOB?

NS
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