From: email@example.com (Brad Gillies) Organization: Leading Edge Aviation Services Date: 22 Sep 95 00:18:33 References: 1 2 3 4 5 Followups: 1
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In article <airliners.1995.1495@ohare.Chicago.COM>, "Nicolas E. Murat" <vis@elaine14.Stanford.EDU> wrote: >On 12 Sep 1995, Andrew Goldfinger wrote: > >> In article <airliners.1995.1439@ohare.Chicago.COM> Nicolas Ercan Murat, >> vis@amy29.Stanford.EDU writes: >> >This was proven when an evacuation slide on an PIA A310 decided to >> >inflate during flight ... >> >> >The end of the story was that an on-board mechanic ran back and gave >> >a big stab with his screwdriver and punctured the slide. >> >> What gas is used to inflate the slides? If it is CO2, was it safe to >> puncture the slide and release the gas into the cabin? (This question >> arose in my mind since I am now reading "Lost Moon" by Lovell about Apollo >> 13, and they had a problem with a life vest inflating. They were very >> careful to vent the CO2 into space rather than release it into the cabin). > >The slide inflation is activated by a small gas bottle. I am unfortunately >not certain of what the gas is. > The gas is NITROGEN. Harmless you breathe about 80% Nitrogen anyway. Besides the cabin air is "Turned over" quite rapidly. So There would Be no real Problem. >However, the gas dispensed by the bottle is small in comparison to the >amount of air required in the slide. The main inflation is done through >"aspirators" which suck in air when the slide is deployed, so the gas bottles >are in effect only there to kick in the system and are too small to fill >the whole slide anyway. > You know.....I did not know that. Thats very interesting. >In any case, I do not think that CO2 dispension into the cabin does has >the same consequences as in a space craft... Also, as an aside, I would like >to note how complex the slide/rafts on commercial aircraft are complex. They >are one of the systems (ATA 25-62) with the most complications during >maintenance and in design itself. > I would guess that in a space craft the air is finite in an airplane theres always more. I have seen accidental deployments several times The systems are very tempermental. -- Brad Gillies Bradg@io.org http://www.io.org/~bradg/ Leading Edge Aviation Services Aviation Maintenance, The Backbone of Aviation.