Look at http://www.fmadirect.com They have several products in that area. Their "co-pilot" uses IR sensors to find the horzon and level up the wings. Most projects like you are considering use GPS to stay on course. I think you will find it a challenge to build such a project at an acceptable cost without going to a larger model. The weight builds up fast. I have a fair amount of RC airplane experience but most of my current activity is with two meter aircraft. I maintain the website at http://www.nsrca.org/d2/d2nsrca/D2Homepage.htm Nothing fancy, just communications... Welcome to the world of RC, it can be habit forming! John Ferrell http://DixieNC.US ----- Original Message ----- From: "Debbie" To: "Microcontroller discussion list - Public." Sent: Sunday, October 30, 2005 3:03 PM Subject: [EE] Xtal Gyroscopes - ideas? > PICers - I got my hands on a model aeroplane kit a while back. It's your > basic > soaring glider with electric motor driving the propellor + radio control + > GWS > servos to operate the elevators. There's plenty of room inside for > "extras" ... > hah! so can't resist a bit of experimentation. :) Would like to try my > hand at > making the thing sort of autonomous and I guess the 1st item would be to > fit a > gyrostabiliser so it can fly straight without the operator's help. > > I've checked out the Futaba xtal gyro units - they look encouraging. What > other > types/brand names would people recommend? Price is an issue - gotta be > reasonably cheap. > > Thankz for advice - Debbie > > > > ____________________________________________________ > Do you Yahoo!? > The New Yahoo! Movies: Check out the Latest Trailers, Premiere Photos and > full Actor Database. > http://au.movies.yahoo.com > -- > http://www.piclist.com PIC/SX FAQ & list archive > View/change your membership options at > http://mailman.mit.edu/mailman/listinfo/piclist > -- http://www.piclist.com PIC/SX FAQ & list archive View/change your membership options at http://mailman.mit.edu/mailman/listinfo/piclist