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Bristow emergency landing

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Old 2nd Nov 2020, 19:07
  #61 (permalink)  
 
Join Date: Feb 2006
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Originally Posted by [email protected]
so they have just reinvented the ELS system from the Sea King except using a fuel pump instead of the Tqmeter pump. - not exactly a 21st century solution.
Remind me how long it took Wastelands to develop a system for the Sea King that was already in use on the S61?...and had been from the mid 70's.
I am not standing up for Sikorsky on this, this problem should have been sorted out years ago.
Phil Kemp, you beat me to it.
3D CAM
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Old 3rd Nov 2020, 06:19
  #62 (permalink)  
 
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Yes Wastelands were doing what they do best - waiting to see how much they could charge the customer for providing something that should have been there in the first place.

Either way, the S-92 'fix' isn't new technology and adds extra pipes and complexity that they claimed was what they had eliminated with the original design of the MRGB.
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Old 3rd Nov 2020, 15:14
  #63 (permalink)  
 
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Originally Posted by HeliMannUK
I dont think the accessories can last that long without oil but still flying on the APU & backup hyd is better than not flying. Maybe the supplemental supplies oil to the accessories?
I think if you reached the stage where the AC Gens and 1/2 hydraulic pumps have mechanically failed due to lack of lubrication, you have really stretched your luck!

I can say, though, that during prolonged churning the AC Gens will trip offline due to overheating (being normally cooled by the MGB oil). We lost No 1 and I don’t know how long No 2 would have stayed online. This then revealed a stuck AC bus relay, so No 1 AC bus dropped offline and took the No 1 and Backup DC Converters with it.
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