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EC135

Old 26th May 2019, 11:04
  #1101 (permalink)  
 
Join Date: Sep 2000
Location: UK
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Anyone able to tell me why this 135 has that little damm in front of the static port? Haven’t seen it before on the 8 different 135s I have come across...
Brilliant Stuff is offline  
Old 26th May 2019, 12:07
  #1102 (permalink)  
 
Join Date: Oct 2006
Location: USA
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Originally Posted by Brilliant Stuff View Post
Anyone able to tell me why this 135 has that little damm in front of the static port? Haven’t seen it before on the 8 different 135s I have come across...
Is this one configured the same as the other 8 from an optional equipment stand point? Is it on both sides?

"Dams" are usually installed when something is added that affects airflow at the static port and its sensitivity.
wrench1 is offline  
Old 26th May 2019, 15:23
  #1103 (permalink)  
 
Join Date: Jan 2011
Location: Lower Troposphere
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Looks like someone in Donauworth might have drilled supporting holes in the wrong spot.
blackdog7 is offline  
Old 26th May 2019, 16:39
  #1104 (permalink)  
 
Join Date: Feb 2006
Location: Germany
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well, we had similar “Ram-blades“ on the BK 117, which had to be changed with different configurations (FLIR build on or not)
Flying Bull is offline  
Old 26th May 2019, 18:27
  #1105 (permalink)  
 
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Both sides had the same modification. That’s all I know.
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Old 23rd Jun 2020, 19:00
  #1106 (permalink)  
 
Join Date: Jun 2020
Location: Massachusetts
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Warning unit shenanigans

Anyone ever flip on their battery master switch and not get the low rotor rpm tone? Or get just the gong instead? Or no sound at all?

Some more detail:

Ship is a P1. A previous warning unit worked great for about a year, then it started to act up. Sometimes when we turned on the master battery switch it worked correctly, you’d get the low rotor rpm tone, hit reset on the cyclic, then get the gong. But intermittently, we’d get no low rotor rpm tone, just straight to the gong, and sometimes neither tone, just silence.

We replaced that one and it worked fine for another year. Then we figured out the warning unit we put in wasn’t calibrated for the 95% low rotor rpm threshold for the P1, but instead for 97%. So we got a brand new unit from Airbus (complete with a check engine light…), calibrated for 95% and stuck it in. Now we’re having the same intermittent issue with the tones not coming on when you flip on the battery master.

Could this be a voltage thing? Could low battery voltage cause the warning unit not to make the tones? Could this be a compatibility thing between the new unit and the old aircraft?

Thanks!
C.F.I. Care is offline  
Old 23rd Jun 2020, 23:57
  #1107 (permalink)  
 
Join Date: Nov 2006
Location: After all, what’s more important than proving to someone on the internet that they’re wrong? - Manson
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Anyone able to tell me why this 135 has that little damm in front of the static port? Haven’t seen it before on the 8 different 135s I have come across...
135H? Helionix? 3 big screens in the front?

Optional on 1 thru 3 versions and possibly standard on H version.
SB EC135‐34‐045 Valid for Versions: T1, T2, T2+, T3, P1, P2, P2+, P3 635 T1, 635 T2+, 635 T3, 635 P2+, 635 P3
Recommended for helicopters having problems with entry of water in static ports.
RVDT is offline  
Old 24th Jun 2020, 00:15
  #1108 (permalink)  
 
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Location: After all, what’s more important than proving to someone on the internet that they’re wrong? - Manson
Posts: 1,558
Warning unit shenanigans
Before you go replacing the WU again I would be checking that your ICS is not the issue or the RESET button on both cyclics if fitted.

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