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|  T-6A INSTRUMENT NAVIGATION
CHAPTER FIVE
NOTE
When not in radar contact, a voice report is required when leaving
FAF inbound on final approach (non-precision approach) or when
leaving the OM or fix used in lieu of the OM inbound on final
approach (precision approach).
10. Ensure the pilot levels off at the MDA. Do not allow descent below the MDA. If the pilot
descends below the MDA, direct an immediate climb to the MDA ("climb to 680 feet").
11. Provide heading, altitude and airspeed inputs to the pilot as required to maintain 120 KIAS
on the FAC at the MDA.
12. At the MAP: report "At the MAP" and ask your IP if the field is in sight. If the field is in
sight and the aircraft is in a position to make a safe landing, descent below the MDA is
authorized. If both conditions are not met, direct the IP to execute a missed approach.
NOTE
The pilot should not descend below the MDA prior to reaching the
VDP and acquiring the necessary visual reference.
Things to consider when turning onto or off an arc:
1.
The 0.6 and 0.8 DME leads are based on a 90 turn. If turning onto an arc or off an arc
onto final at anything other than a 90 turn, you may need to adjust your lead point.
2.
Keep in mind 0.6 and 0.8 DME leads are based on GS of 120 and 150 KIAS respectively.
Winds at altitude may significantly affect intercept and should be taken into consideration. In
this situation, the rate of CDI movement can be used to initiate a turn and rollout on the FAC.
3.
Use your CDI and the tail of your bearing pointer to determine when you have reached the
lead radial.
COMMON ERRORS
1.
Overshooting the arc or FAC due to insufficient lead or slow scan of instruments.
2.
Failure to descend to minimum altitudes for the various approach segments. Remember,
refer to the profile view.
506. STRAIGHT-IN APPROACH
A straight-in approach is an instrument approach conducted by proceeding to the FAF at a
prescribed altitude and continuing inbound on the FAC to the airport without making a procedure
turn (PT). These approaches utilize intersections, VOR/DME fixes and other NAVAIDs as an
TERMINAL PROCEDURES
5-35
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