CASTLEBERRY Instruments & Avionics MODEL 300-14EL ATTITUDE GYRO OPERATOR GUIDE __________________________________________________________________________________________ Document: 0052-1001-0001 Page 1 of 4 Revision B
CASTLEBERRY Instruments & Avionics Model 300-14EL Operator Guide General Information This attitude indicator is a precision gyroscopic instrument that provides the pilot with a visual reference of the aircraft pitch and roll attitude with respect to earth. To achieve this desired attitude indication, the gyro establishes and maintains a stabilized datum reference perpendicular to the earth.
CASTLEBERRY Instruments & Avionics Figure 1 5. Roll Dial 4. Roll Indice 6. Gyro Flag 3. Pitch Dial 7. Inclinometer 2. Parallax Indicator 1. Parallax Adjust 8. Caging Knob Observe Figure 1 for description of features as follows: 1. Parallax Adjustment Knob is used to set the Parallax Indicator (item 2) reference on the actual gyro horizon after settling as viewed by the pilot.
CASTLEBERRY Instruments & Avionics 3. Item 3 is the Pitch Dial. The gyro pitch attitude angle is determined by reading the Pitch Dial position against the Parallax Indicator (previously set in item 1). Note: The horizon line on the Pitch Dial may or may not be exactly aligned with the zero indices of the Roll Dial (item 5) at true level. This can be due to the ± 1½ degree tolerance that is typical for attitude gyros. 4. This is the Roll Indice.
