TD54

Question 1

Define the term DH/DA and be able to identify it on an IAP

Answer 1

Decision height/altitude

Lowest altitude on an approach plate that you can descend to prior to missed approach or landing

Question 2

For each approach type, state if it has a glide path, when you use an MDA or DA, and where the missed approach point is located and be able to identify it on an IAP

LNAV:
LNAV+V:
LNAV/VNAV:
LPV:

Answer 2

LNAV: no glide path, MDA, MAP waypoint

LNAV+V: artificial glide path, MDA, MAP waypoint

LNAV/VNAV: glide path, DA, DA

LPV: glide path, DA, DA

Question 3

Define a VDP and state if it’s mandatory for Army helicopter pilots to abide by.

Answer 3

The point where you can visually descend from the MDA to the runway environment

Yes it’s mandatory

Question 4

Define the term MSA (two types)

Answer 4

Minimum Safe Altitude

1. Minimum sector: provide at least 1,000ft of obstacle clearance within a 25 NM radius of the airport
2. Emergency safe altitudes: Altitudes depicted on a chart that provide at least 1,000ft of obstacle clearance in non-mountainous areas and 2,000ft in mountainous areas.

Question 5

Define HAT and be able to identify it on an IAP

Answer 5

Height above touchdown, the height above the highest runway elevation in the first 3000 feet

Question 6

Define HAA and be able to identify it on an IAP

Answer 6

Height above airport, used for circling minimums

Question 7

Define HAL and be able to identify it on an IAP

Answer 7

Height above landing. Used for helicopter pads and copter approaches

Question 8

What are glide slope tracking standards for a precision approach?

Answer 8

Maintain within full scale