At 05:09 AM 9/30/1999 -0000, Randy John wrote: >Earl, > What is the period of an anti-collision light? About 1 second? >Probably just enough time to cross the photo. Depends on the airplane, and on the particular model of said airplane. F-16A or F-16C, etc. Some are 1 per second, some are faster, and some are slower. Earl Earl Needham, KD5XB mailto:KD5XB@AMSAT.ORG Clovis, New Mexico DM84jk N34d 25.446 W103d 12.700 (or so) Pet peeve: breath is a noun, breathe is a verb (When you take a breath, you breathe...)