Well, some of the sealed BRS systems have a 6 year
repack cycle, IIRC. At 20-30 pounds, maybe the
extra weight isn't such a good idea (Brian Carpenter
recommends against them for ultralights for just this reason).
But it IS an option for some aircraft...

In article .com,
wrote:
obviously that should read "185 days too short". Lack of air time ...



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Mark J. Boyd