From: "W Wilson" <wlw-jr@att.net> Sent: Sunday, December 30, 2001 10:48 PM > Richard, > This link, http://www.faa.gov/atpubs/aim/Chap7/aim0702.html, will give = you > the scoop for altimeter settings/terms for US operations. >=20 > Walter > DCA >=20 I'm not a pilot, but after a 50 year career in research and development = on instruments, I'm glad I'm not. The cited regulation reads, in part:=20 "Note the variation between the known field elevation and the altimeter = indication. If this variation is in the order of plus or minus 75 feet, = the accuracy of the altimeter is questionable and the problem should be = referred to an appropriately rated repair station for evaluation and = possible correction. " "In the order" of my foot! If it is greater than 75 feet, fix the damn = altimeter! Happy New Year Gerry K8EF http://home.columbus.rr.com/gfoley/ http://www.geocities.com/gerryf.geo/eclipseindex.html http://www.fortunecity.com/victorian/pollock/263/egypt/egypt.html