At 09:18 AM 11/28/04 -0700, Earl Needham wrote: > Millibars. Have to dig out my information for my IFR rating to > get the conversion, but it seems like "BAR" refers to standard > atmospheric pressure at sea level, i.e. 29.92" mercury. The conversion is approx 1013.2 (std atmos mb) / 29.92 (std atmos inches) * inch reading. Bob Kirk N3OZB