In a message dated 9/30/2007 5:16:27 P.M. Eastern Standard Time, terryrs at comcast.net writes: ...Or are rotors all-or-nothing type failures? All, then waiting until the most inopportune moment, then nothing. David Lylis 69 TR6 CC26160L 60 TR3A TS74461LO ************************************** See what's new at http://www.aol.com