Breath in those toxic fumes
Boeing has been ignoring this problem far too long. avherald has a report of bad smells in the cockpit and cabin, and diversions caused thereby, every week. Seems like the courts are the only solution left.
https://www.chicagotribune.com/news/...zmq-story.html |
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OK, Airbus ignores the problem as well. Doesn't mean we shouldn't fix it.
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Originally Posted by aaatwood
(Post 2969595)
OK, Airbus ignores the problem as well. Doesn't mean we shouldn't fix it.
At what problem would that be, the design flaw they speak of?? Using bleed air to pressurize the cabin? Who ever came up with that stupid idea? |
I read that during WWI a lot of the fighter plane engines (which generated all of 100hp) used castor oil as a lubricant. The exhaust from which would then hit the pilot in the face.
https://www.wearethemighty.com/histo...4#rebelltitem4 not exactly toxic per se, but the $hits nonetheless. :o |
Originally Posted by Texasbound
(Post 2969738)
At what problem would that be, the design flaw they speak of?? Using bleed air to pressurize the cabin? Who ever came up with that stupid idea?
In future designs cabin air will probably be produced by an electric pressurization/HVAC unit like the 787. Or at least will have some more robust filters. |
Jet-turbine oil contains Tri-Cresyl Phosphate as a stabilizing additive. The problem: it acts like other organophosphates....it’s a nerve-agent.
If the front bearing-seals leak in a jet engine, that oil will be compressed with the air, turning to vapor, and delivered via normal bleed to the Packs...and the cabin. The best solution would be to find a substitute additive that is not a nerve agent. Because stopping ALL oil leaks is mechanically impossible. But it may be there is no other alternative. |
Originally Posted by UAL T38 Phlyer
(Post 2970289)
Jet-turbine oil contains Tri-Cresyl Phosphate as a stabilizing additive. The problem: it acts like other organophosphates....it’s a nerve-agent.
If the front bearing-seals leak in a jet engine, that oil will be compressed with the air, turning to vapor, and delivered via normal bleed to the Packs...and the cabin. The best solution would be to find a substitute additive that is not a nerve agent. Because stopping ALL oil leaks is mechanically impossible. But it may be there is no other alternative. Getting rid of certain additives might be good, but honestly I don't want to breath ANY complex hydrocarbons (especially after they've been cooked). I believe filters are a viable option, but they would expensive and heavy enough enough that it would take regulatory intervention to get them into widespread use (like fuel tank inerting retro-fits). |
Turbocompressors
The B-707 used a turbocompressor for A/C (the small inlet above the cowl). It was driven by 16th stage bleed air, but provided outside air instead of bleed air to the cabin.
https://images.app.goo.gl/RXxmeprqwmwK2nYz9 |
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