767driver
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747 Pax O2

Tue Jul 29, 2008 3:14 pm

With regards to the QF incident, is the passenger O2 system the same chemical-generating O2 as in all other Boeings?
 
Tristarsteve
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RE: 747 Pax O2

Tue Jul 29, 2008 4:23 pm

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.
 
dl757md
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RE: 747 Pax O2

Wed Jul 30, 2008 7:09 am



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!
 
Tristarsteve
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RE: 747 Pax O2

Wed Jul 30, 2008 9:05 am



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.
 
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zeke
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RE: 747 Pax O2

Wed Jul 30, 2008 9:42 am



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

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HAWK21M
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RE: 747 Pax O2

Wed Jul 30, 2008 4:54 pm



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
I may not win often, but I damn well never lose!!! ;)
 
AA737-823
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RE: 747 Pax O2

Tue Aug 05, 2008 12:59 am



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.
 
Tristarsteve
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RE: 747 Pax O2

Tue Aug 05, 2008 12:18 pm



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!
 
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Starlionblue
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RE: 747 Pax O2

Tue Aug 05, 2008 1:24 pm



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." - John Ringo
 
Tristarsteve
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RE: 747 Pax O2

Tue Aug 05, 2008 2:12 pm



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.
 
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HAWK21M
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RE: 747 Pax O2

Tue Aug 05, 2008 2:18 pm



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
I may not win often, but I damn well never lose!!! ;)
 
AA737-823
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RE: 747 Pax O2

Wed Aug 06, 2008 7:34 pm



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.
 
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Starlionblue
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RE: 747 Pax O2

Wed Aug 06, 2008 10:19 pm



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." - John Ringo
 
AA737-823
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RE: 747 Pax O2

Wed Aug 13, 2008 1:00 am



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

Now you're talking!!!
 
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HAWK21M
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RE: 747 Pax O2

Wed Aug 13, 2008 9:53 pm



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
I may not win often, but I damn well never lose!!! ;)

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