Flight Training Instruction - Cnatra - U.S. Navy

T-6B PRIMARY INSTRUMENT NAVIGATION CHAPTER TEN
1003. GPS APPROACHES
As a memory aid, use Little Dogs Dig Holes (LDDH) to aid in setting up and flying GPS
approaches.
Procedure. GPS approaches can be performed as a full procedure approach or radar vectors to
final.
We will discuss both using Figure 10-3 (RNAV RWY 14 Mobile Downtown) as an example.
GPS Full Procedure
Upon receiving approach clearance, perform step 1 if not already done.
1. L – Load GPS approach.
Follow ATC instructions to proceed direct to NOTNE, perform steps 2 through 4.
Within 5 NM of NOTNE, slow the aircraft in order to overfly NOTNE at 150 KIAS.
2. D – Direct to IAWP, in this case NOTNE.
3. D – Display – NAV source should be set to FMS.
4. H – Hold – If a turn in holding is required, ensure that NOTNE is loaded as a holding fix
(NOTNE/H, 140º inbound course set).
Upon over flight of NOTNE, perform a holding entry turn.
- Perform the 6Ts.
Passing NOTNE for the second time (inbound on the approach), the GPS should cycle to the
next waypoint, HUTIP, in this case the FAWP (FAF).
5. Descend and configure as required.
a. Set 15% torque and descend to 1500’.
b. Within 5 NM of the FAWP (HUTIP), configure to BAC.
c. Within 2 NM of the FAWP, the approach should go active, and CDI sensitivity
transitions to approach mode.
Passing the FAWP, HUTIP.
GPS APPROACH PROCEDURES 10-5