3-3/8″ Artificial Horizon. Attitude gyro provides a continuos visual display of the aircraft attitude with respect to the earth for every maneuver around the longitudinal (pitch) and lateral (roll) axes.A precision AC brushless motor is featured in the eletricl attitude gyro. The DC versions have a hybrid inverter which converts the aircraft DC power to the required voltage and frequency for motor operation.The power failure flag drops into view whenever the power supply’s voltage drops below a level acceptable for proper operation of the gyro. The electrical gyro can be caged by pulling the PULL to Cage knob. 14VDC Size 3-3/8″ X 6.46/164mm, weight 2.4lb/984g.