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This is an old product (1990's), but it has never been installed. I have carefully tested it on the bench and everything works. Included is the main BTA AS-05 controller module (6.75 oz) and the optional 2-axis magnetometer (6.75 oz), for course correction. The AS-05 has the factory installed Height Lock modification. Also provided are the instruction manuals and the cables.
The system is designed to work with all the popular R/C systems and is essentially a plug-in installation. It connects between a model airplane's R/C Rx and the aileron and elevator servos. It must be used with a stable model airplane (non aerobatic).
The AS-05 provides for roll and altitude correction. It has an internal BB mechanical gyro for roll correction and a sensitive barometer for altitude correction. The 2-Axis Magnetometer sub-system provides course/yaw correction using a unique solid state compass-like sensor. Accuracy is reportedly better than +/-5%. It all operates on the Rx's 4.8VDC power. Total current is approx 120mA.
Here is a photo of the AS-05 module kit (pencil not included
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