Figure 11-6. KLN900 GPS

CHAPTER ELEVEN

T-34C AIRCRAFT SYSTEMS FAMILIARIZATION

WORKBOOK

Figure 11-6 KLN900 GPS

NOTE

The front unit must be on and functioning properly for either unit to

be used for navigation. The last input from either cockpit has

priority for system control.

The KLN900 system includes two KLN900 display /control panels, two KA41

Annunciator/Control Panels (Figure 11-7), one KA90 slaving accessory, one blind cockpit

encoding altimeter, and one GPS antenna. The slaving accessory is located on the top shelf in the

avionics compartment. The GPS antenna is mounted adjacent to the NACWS GPS antenna on

top of the fuselage behind the rear cockpit. The blind encoding altimeter is located in the front

cockpit, mounted aft of the inverters on the left kick panel.

The NAV and GPS annunciators of the KA41 annunciator/control panel indicate the slaving

source for the double needle on the RMI and CDI. The white NAV light indicates the double

needle on the RMI is slaved to the TACAN and the CDI is slaved according to the position of the

VOR/TACAN toggle switch. The green GPS light indicates the double needle and CDI are

slaved to the KLN900. The GPS/NAV button, below the lights, is used to select either navigation

source.

The KLN900 allows you to control and view your flight plan data. The power/brightness control

is located in the upper right corner of the unit. It is a pull-off/push-on control for power and

rotate for brightness type control.

11-10 AVIONICS