At 08:28 AM 4/25/02 +1000, you wrote: >I have an oxygen system for my sailplane that provides a short burst of >oxygen at the start of each inspiration cycle. >Cheers >Brian Brian Is this a commercial system ? We''re going to take a run at one of the FAI C1 records this summer and anything I can find weighs more than the airframe. Dave -- http://www.piclist.com hint: The PICList is archived three different ways. See http://www.piclist.com/#archives for details.