G900X/G950 Installation and Maintenance Manual – Airframe Specific Installation Instructions (G900X Only)
Page B-53
190-00719-00
Revision D
6.
The shelf installation must be fully cured before proceeding with the magnetometer installation.
Using the elevator control tube as the aircraft centerline reference, project a parallel line on to the
magnetometer shelf. The parallel line serves as an indication of the aircraft’s forward direction, as
demonstrated in Figure B-68. The alignment of the magnetometer is critical and needs to be
within 0.5° of the aircraft’s forward direction.
ELEVATOR CONTROL TUBE
MAGNETOMETER SHELF
Figure B-68. Alignment Of Magnetometer Cutout With Aircraft’s Forward Direction
Alternately, if the 2.50 in. diameter hole is drilled off of centerline as indicated in Figure B-69,
project a parallel line to the aircraft’s centerline reference using the elevator control tube as a
reference line. Mark a parallel line at the offset cutout to create the forward direction reference.