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747 Pax O2  
User currently offline767driver From United States of America, joined Feb 2008, 105 posts, RR: 0
Posted (6 years 4 months 3 weeks 2 days 19 hours ago) and read 4561 times:

With regards to the QF incident, is the passenger O2 system the same chemical-generating O2 as in all other Boeings?

14 replies: All unread, jump to last
 
User currently offlineTristarSteve From Sweden, joined Nov 2005, 4068 posts, RR: 33
Reply 1, posted (6 years 4 months 3 weeks 2 days 18 hours ago) and read 4537 times:

No.
The B744 has only gaseous oxygen in bottles.
Same as all B747s, and the B737-200, most B737-3/4/500 (all?) and B727 and B707.
The B777 comes in both guises. Most have generators but some airlines have a bottle system.


User currently offlineDl757md From United States of America, joined May 2004, 1562 posts, RR: 17
Reply 2, posted (6 years 4 months 3 weeks 2 days 4 hours ago) and read 4404 times:



Quoting TristarSteve (Reply 1):
and the B737-200, most B737-3/4/500 (all?) and B727

Delta's 737-200s and 300s and 727s all had O2 generators.

DL757Md



757 Most beautiful airliner in the sky!
User currently offlineTristarSteve From Sweden, joined Nov 2005, 4068 posts, RR: 33
Reply 3, posted (6 years 4 months 3 weeks 2 days 2 hours ago) and read 4384 times:



Quoting Dl757md (Reply 2):
Delta's 737-200s and 300s and 727s all had O2 generators

I am sure you are correct, but unless they were very late aircraft I doubt that they were built like that. Perhaps Delta modifyed them later.


User currently offlineZeke From Hong Kong, joined Dec 2006, 9229 posts, RR: 76
Reply 4, posted (6 years 4 months 3 weeks 2 days 1 hour ago) and read 4375 times:



Quoting TristarSteve (Reply 1):
Same as all B747s, and the B737-200, most B737-3/4/500 (all?) and B727 and B707.

Think a lot of the short haul Boeing aircraft now have 02 generators ( http://www.beoxygensystems.com/index.php?id=311§ion=Passenger ). Can be seen on the photo database looking at the number of oxygen gauges installed in the cockpit

DL 732 with chemical


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Photo © Chris Coduto



Braathens 732 with chemical


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Photo © Ralph Duenas - Jetwash Images



SW 733 with chemical


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Photo © Ralph Duenas - Jetwash Images



WJ 737 with chemical


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Photo © Phyllis Purich



HF 738 with chemical


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Photo © H. Meier



FR 732 bottle


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Photo © Jason Nicholls - V1Images




We are addicted to our thoughts. We cannot change anything if we cannot change our thinking – Santosh Kalwar
User currently offlineHAWK21M From India, joined Jan 2001, 31702 posts, RR: 56
Reply 5, posted (6 years 4 months 3 weeks 1 day 18 hours ago) and read 4301 times:



Quoting Dl757md (Reply 2):
Delta's 737-200s and 300s and 727s all had O2 generators.

Supposingly these were modified by the airline,as the B732 had no chemical Generators in the PSUs.
regds
MEL



Think of the brighter side!
User currently offlineAA737-823 From United States of America, joined Mar 2000, 5944 posts, RR: 11
Reply 6, posted (6 years 4 months 2 weeks 3 days 10 hours ago) and read 4132 times:



Quoting TristarSteve (Reply 1):
Same as all B747s, and the B737-200, most B737-3/4/500 (all?)

No longer correct, though can't testify as to how they were delivered.
But our 1985 built 737-200s have ATI interiors and chemical generators. The chem gens may have been part of the ATI interior, I don't know, but either way, we've got candles.


User currently offlineTristarSteve From Sweden, joined Nov 2005, 4068 posts, RR: 33
Reply 7, posted (6 years 4 months 2 weeks 2 days 22 hours ago) and read 4092 times:



Quoting AA737-823 (Reply 6):
But our 1985 built 737-200s have ATI interiors and chemical generators

OK sorry, our 1985 B732s all had oxygen bottles, and we sold the lot in 1990.
In fact I saw a B732 here t ARN this summer for the first time in years, it came from Beirut. Lovely to hear a noisy old plane again!


User currently offlineStarlionblue From Greenland, joined Feb 2004, 17172 posts, RR: 66
Reply 8, posted (6 years 4 months 2 weeks 2 days 21 hours ago) and read 4080 times:



Quoting TristarSteve (Reply 7):
In fact I saw a B732 here t ARN this summer for the first time in years, it came from Beirut. Lovely to hear a noisy old plane again!

Not to derail the thread, but doesn't this break noise regs?



"There are no stupid questions, but there are a lot of inquisitive idiots."
User currently offlineTristarSteve From Sweden, joined Nov 2005, 4068 posts, RR: 33
Reply 9, posted (6 years 4 months 2 weeks 2 days 20 hours ago) and read 4075 times:



Quoting Starlionblue (Reply 8):
Not to derail the thread, but doesn't this break noise regs?

Well it had some sort of silencers fitted, but was still very noisy. Perhaps it was to the standards of the US B732s? and it wasn't based in the EU.
I don't quite understand the rules. There was a private DC8 here in the summer with JT3s. Perhaps low rate ops are allowed.


User currently offlineHAWK21M From India, joined Jan 2001, 31702 posts, RR: 56
Reply 10, posted (6 years 4 months 2 weeks 2 days 20 hours ago) and read 4074 times:



Quoting TristarSteve (Reply 9):
Well it had some sort of silencers fitted, but was still very noisy.

Yeah....The noise suppressors on JT8Ds don't sound much quieter thhough to a person on the ground  Smile
regds
MEL



Think of the brighter side!
User currently offlineAA737-823 From United States of America, joined Mar 2000, 5944 posts, RR: 11
Reply 11, posted (6 years 4 months 2 weeks 1 day 15 hours ago) and read 4001 times:



Quoting Starlionblue (Reply 8):
Not to derail the thread, but doesn't this break noise regs?

Currently in-service 737-200 aircraft have stage III hushkits fitted to the tailpipes, which increases fuel consumption, increases exhaust pollution, and decreases noise by about 0.00052 decibels. Enough to get it JUST into Stage III, but that's about it.

Quoting TristarSteve (Reply 9):
Well it had some sort of silencers fitted, but was still very noisy.

Yes, as are mine. I never go anywhere without hearing protection, which is a pain, as I am constantly losing my muffs!

Quoting TristarSteve (Reply 9):
I don't quite understand the rules. There was a private DC8 here in the summer with JT3s. Perhaps low rate ops are allowed.

Aircraft aren't generally disallowed from landing at an airport just because they're noisy. You can't base a stage II airplane in a stage III country in reg sched. pax ops, but limited cargo use and charters seem to be common.

We've still got DC-6 aircraft flying in and out of Anchorage all the time, and they're louder than the vast majority of jet aircraft in service.


User currently offlineStarlionblue From Greenland, joined Feb 2004, 17172 posts, RR: 66
Reply 12, posted (6 years 4 months 2 weeks 1 day 12 hours ago) and read 3979 times:



Quoting AA737-823 (Reply 11):

We've still got DC-6 aircraft flying in and out of Anchorage all the time, and they're louder than the vast majority of jet aircraft in service.

Yes but they sound so cool. There should be something in the regs about coolness...



"There are no stupid questions, but there are a lot of inquisitive idiots."
User currently offlineAA737-823 From United States of America, joined Mar 2000, 5944 posts, RR: 11
Reply 13, posted (6 years 4 months 1 week 2 days 10 hours ago) and read 3830 times:



Quoting Starlionblue (Reply 12):
There should be something in the regs about coolness...

Now you're talking!!!


User currently offlineHAWK21M From India, joined Jan 2001, 31702 posts, RR: 56
Reply 14, posted (6 years 4 months 1 week 1 day 13 hours ago) and read 3741 times:



Quoting AA737-823 (Reply 11):
Aircraft aren't generally disallowed from landing at an airport just because they're noisy. You can't base a stage II airplane in a stage III country in reg sched. pax ops, but limited cargo use and charters seem to be common.

Isn't there a restriction on all types,unless prior permission is sought.Not sure as we don't have any noise restrictions in place out here as on date.

regds
MEL



Think of the brighter side!
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