GRT Avionics, Inc.
May 2019
Sport SX Install. Manual
15
Rev. A
parallel to the fuselage centerline. In cases where the magnetometer is mounted in the
wing, it may be possible to orient the magnetometer parallel to a wing rib, if the ribs are
oriented in the wing such that they are parallel to the fuselage centerline. This is quite
practical in airplanes such as Van’s RV’s.
Figure 3-2: Legacy Magnetometer/Display Unit Mounting Alignment
*NOTE:
The magnetometer and the display unit containing the AHRS must be mounted
in the same attitude relative to each other.
Be sure to mount the magnetometer with the connector toward the rear of the airplane.
Observe the label on the magnetometer to ensure it is oriented correctly. Refer to the
Magnetometer Installation Notes
section of
Appendix A: Mounting, Wiring and
Interface Diagrams
for additional installation instructions.
3-4: Cooling Considerations
The GRT Sport SX does not require external cooling. However, as with all electronic
equipment, lower operating temperatures may extend equipment life. Units in an avionics
stack heat each other through radiation, convection and sometimes by direct conduction.
Even a stand-alone unit operates at a higher temperature in still air than in moving air.
Fans or some other means of moving air around electronic equipment are usually
worthwhile. Be certain that cooling air does not contain water
—a problem often
encountered when using external forced-air cooling methods. A few small openings in the
glare shield are usually enough for adequate natural air circulation.
3-5: Pitot-Static Connections
