Hi, A while back a few folks asked for some pics on the control loading system I was working on. Finally a little time to post a few pics
see http://www.flickr.com/photos/flyr15/ Currently working on the PID and control algorithms and some code in FG to compute neutral elevator/stick position. Once that is working up to spec will post some movies of the system in action. also plan to replace the air compressor with a quiet ( ~35dB ) Jun-aire unit. The CFM is quite modest so should be able to get by with a fairly small unit; something on the order of a 3-4 gallon supply tank @ 230psi. The control system itself runs at 15psi for the pitch and 30psi for the roll channel. The ITVs have a range up to 130psi and are programmable and scalable. Interface is a USB to d-to-a converter (0-5Vdc) to set the actuator pressures. No numbers on duty cycle for the compressor just yet, but at 35dB the noise should be tolerable when it fires up ( can always move it to the next room and add an intermediate supply tank ;-) )-- guessing around a 25 minute duty cycle under load. Regards John W ------------------------------------------------------------------------------ This SF.net email is sponsored by Sprint What will you do first with EVO, the first 4G phone? Visit sprint.com/first -- http://p.sf.net/sfu/sprint-com-first _______________________________________________ Flightgear-devel mailing list Flightgear-devel@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/flightgear-devel
