PPRuNe Forums - View Single Post - CHC find S92 & AW139 "Unacceptable"
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Old 19th Mar 2007, 08:58
  #40 (permalink)  
HeliComparator
 
Join Date: Aug 2004
Location: Aberdeen
Age: 67
Posts: 2,094
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V.24 EGPWS has ALL the functionality of an AVAD
I disagree. eg during an ARA with the gear down, descending below bugged height gives you "Minimums", but if you climb back up to above bugged height (as you would) you will then never get another voice warning. You have either to land or climb 200' above bugged height to rearm the system. So once you have triggered the first warning, you are left without protection.

I think you should bear in mind that the EGPWS installation is highly configurable. Sikorsky spent some time with the 92 trying to make it good, but I don't think the same is true for the 76. They just bolted it on and there are some significant differences - the main one I know is that on the 92, mode 1 is permanently inhibited, but not on the 76. There seems no logic to that!

HC
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