crank
Topic Author
Posts: 1524
Joined: Tue May 22, 2001 11:42 pm

Emergency Slides

Mon Apr 01, 2002 4:38 pm

how does the air get in the emergency slides so fast?

what's the system?

Thanks
 
BWIrwy4
Posts: 877
Joined: Thu Nov 15, 2001 1:41 pm

RE: Emergency Slides

Mon Apr 01, 2002 4:43 pm

Probably a pressurized CO2 tank, similar to an inflatable life jacket but on a bigger scale.
 
744rules
Posts: 391
Joined: Sat Mar 30, 2002 3:34 am

RE: Emergency Slides

Mon Apr 01, 2002 10:20 pm

one of the checks the cabin crew have to do is to check the pressure is within limits before pax board the a/c, but i don't know if co2 is used
 
747Teach
Posts: 176
Joined: Wed Nov 29, 2000 3:05 am

RE: Emergency Slides

Mon Apr 01, 2002 11:25 pm

Crank: The Boeing Maintenance Manual, Chapter 26-69-00, Description and Operation, says this about the slides. The slide/raft (in this case) uses stored gas pressure from a bottle in the pack to activate the 2 slide inflation pumps. These pumps induce ambient air at several times the volume of the stored gas bottle, into the slide to cause inflation. In other words, the gas bottle powers the inflation pumps, which then bring in ambient air to fill the slide. The bottles themselves don't have enough volume to fill a large slide/raft combination. The regulator on the bottle senses when the slide is almost full, and does port a small amount of bottle pressure into the slide to complete the fill process, and make the slide "tight." Of course, there are valves downstream from the inflation pumps to prevent the inflation air from returning to ambient, and overpressure valves to prevent overinflating the slide. Hope this answers your question. Regards,

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