OK, I will show my ignorance: I assume there is only one output from the Gyro-device. Maybe plus-0-minus kind of indication. I know that information can be gleaned from this for two axii(?) with appropriate device positioning. How do you separate the channels? Is it so simple as feeding the mixed data to each control function? John Ferrell 6241 Phillippi Rd Julian NC 27283 Phone: (336)685-9606 Dixie Competition Products NSRCA 479 AMA 4190 W8CCW "My Competition is Not My Enemy" > Far and away the cheapest way to go would be a commercial piezo gyro with the > pic setting the bias. Doing it that way, you could select and maintain any rate > of turn that you wish, in addition to maintaining level flight. Most general > aviation aircraft with single axis wing-levelers cock them 45 degrees forward > from vertical so that they can be used for approximate heading hold as well as > wing leveling. -- http://www.piclist.com hint: PICList Posts must start with ONE topic: [PIC]:,[SX]:,[AVR]: ->uP ONLY! [EE]:,[OT]: ->Other [BUY]:,[AD]: ->Ads