Flight Training Instruction - Cnatra - U.S. Navy

CHAPTER TEN T-6B PRIMARY INSTRUMENT NAVIGATION
GPS Vectors to Final
Upon receiving approach clearance, perform step 1 if not already done:
1. L – Load GPS approach.
2. D – Direct to FAWP, in this case HUTIP.
- Change the CDI to the inbound course to HUTIP, in this example, 140º.
3. D – Display – NAV source should be set to FMS.
4. H – Hold – Not required.
5. Descend and configure as required.
a. Within 5 NM of the FAWP, configure to BAC.
b. Within 2 NM of the FAWP, the approach should go active, and CDI sensitivity
transitions to approach mode.
Passing the FAWP HUTIP:
6. Perform the 6Ts.
- Set 15% torque, descend at 120 KIAS.
Steps 7 - 10 remain the same.
1004. LOSS OF GPS INTEGRITY
Prior to the FAWP:
If a GPS integrity warning occurs prior to the FAWP, or system sensitivity does not change to
APR mode within 2 NM of the FAWP:
1. Transition to a backup approach if available.
10-8 GPS APPROACH PROCEDURES
NOTE
This does not, for example, give the pilot the option to fly an ILS
approach if the clearance given was to a RNAV approach. If
however, the clearance given was to an overlay approach, the pilot
may transition to the underlying NAVAID and continue on the
approach. If a different approach is required, the pilot must make
that request to the controlling agency.