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Virtual A320 Triple Hydraulic failure

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Virtual A320 Triple Hydraulic failure

Old 29th Dec 2012, 12:19
  #101 (permalink)  
 
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Just a personal curiosity to wake up this old thread.

In case of total hyd loss, do flight surfaces lock in place or they will freefloat into wind?

As far as I know, being a FBW (irreversible) flight control system, they are not mass-balanced. In that case, they might be prone to flutter.. just asking, don't know.

Are irreversible desgined if there is no hyd pressure the surface would be locked?
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Old 30th Dec 2012, 10:39
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I wonder in case of total hyd loss,
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Old 13th Jan 2013, 08:03
  #103 (permalink)  
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test test test test
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Old 13th Jan 2013, 08:44
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Indeed, green system developed a leak which increased during T/O roll. PTU activated, but ECAM is inhibited until 1500ft, which led to Yellow overheat.

Airbus modified the PTU and ECAM logic:
The HYD G(Y) RSVR LO LVL alert is inhibited for the first 15*s of flight phase 5.
The HYD B RSVR LO LVL alert is inhibited for the entire flight phase 5.

So any RSVR LO LVL that can affect PTU operation and thus the other system, will now display much sooner than 1500ft. Suspect around 400ft where ECAM can be initiated.
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Old 13th Jan 2013, 09:50
  #105 (permalink)  
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Please be aware that posts on page 5 may not be accessible. Problem being worked on by the techo gurus.
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Old 13th Jan 2013, 10:47
  #106 (permalink)  
 
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Just a personal curiosity to wake up this old thread.

In case of total hyd loss, do flight surfaces lock in place or they will freefloat into wind?

As far as I know, being a FBW (irreversible) flight control system, they are not mass-balanced. In that case, they might be prone to flutter.. just asking, don't know.

Are irreversible desgined if there is no hyd pressure the surface would be locked?
David36 is offline  

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