Transcript of Hearing 12/12/97 - TWA Flight 800 Investigation

1So, we --1295and most of this is in the response2to the FAA.I think there is an awful lot of very good3work that was done by the industry.We discussed the4weight of foam,we discussed the design of the fuel5tank inerting system.I was involved i that.67It was very important.lot of time doing trade studies.I think we spent aWe weren’t simply89101112putting a system together to get a rough weight. Weactually did a lot of design trade.We spent a month and a half doing designtrades on the size of the gas separator unit versus thecompressor system that we needed to feed it, because13some people were saying, well,if you just fed the air14into the gas separation unit it would be a very simple15thing to do,it would be very reliable.16Yet,the weight of the gas system went up17phenomenally because of the low pressures available.18so,then you trade that against the compressor cooling192021system required to feed the gas separation system thecorrect pressure and temperature.What we have in this document is that22optimized system,and it still weighs something like232,000 pounds. We used a lot of the C–17 experience in24that, by the way. So,I would refer you to the25document for a lot of this information.CAPITAL HILL REPORTING, INC.(202) 466-9500