This is a little of subject and at the same time deals with the subect on this forum. Am currently helping develop a air system to help parapaligic (SP) pilots fly Helicopters. The FAA has signed off on the main design but want a back-up system. I presented the designers with the idea of using a flatline air system. Same as I use on my minimag and gen-x3 markers. The idea was a hit and now I am trying to find out if there is a spec sheet avaliable showing size and possible flow rates or any other useful info. We know the flatline will work but have to convince big brother that it will provide the needed back up for emergancy use. Thanks for any help you can give us.