NDB Flight Reference

Question 1

Needle fluctuations high

Answer 1

Air conditioning (RACC)
Surrounding weather
Night time
Water bodies
Surrounding terrain and obstacles
Bluetooth
Invertor
Yaw (drift angle)

Question 2

NDB Cone of Confusion Equation

Answer 2

(height above VOR / Sin(50)) / 6076
or
(height above VOR / Cos(40)) / 6076

Question 3

Bearing error uncertainty

Answer 3

±2°

Question 4

Needle Oscillations Tolerance

Answer 4

Within the DOC and on Airways: ±10°
Holding patterns and instrument approaches: ±5°

Question 5

Minimum Power Density

Answer 5

-108dBW/m²

Question 6

Sine wave in the graphic

Answer 6

Check antenna coordinates in site file

Question 7

4 things to do post-calibration

Answer 7

Data files copied to server
Engineers contacted
Provisional report sent
Teams logbook completed

Question 8

Where to check an NDB IDENT

Answer 8

Every 1/4 of an orbit
Furthest point on each radial

Question 9

Piloting Accuracy Tolerances

Answer 9

Orbit (profile 22): 160kts ±30kts, 2 dots, ±50ft, 5° every 10 seconds
Radial (profile 21): 160kts ±30kts, 1 dot, ±50ft, 5° every 10 seconds

Question 10

NDB Profiles Vertical Reference

Answer 10

Altitude

(AMSL)

Question 11

NDB Range

Answer 11

DOC found in relevant AIP