Calculations
No: 612716
Aircraft flying from X to Z
Position X 37°N 010°E Position Z somewhere on N hemisphere Convergency between X and Z 20° Initial True Track 122°
Final True Track is 142°
No: 614795
Aircraft and NDB
Location N hemisphere Flying MH 185° Relative bearing indicator shows 065° relative bearing to NDB VAR at the Aircraft 6°E VAR at the Station 4°E
Lambert Chart convergence between Aircraft and the NDB 8°
Question True bearing from the beacon to the aircraft?
| VAR at the Station | QDR | QTE | QUJ | QDM | VAR at the Aircraft |
|---|---|---|---|---|---|
| 4°E | 072° | 076° | 256° | 250° | 6°E |
Question is - what true bearing should be plotted from the beacon to the aircraft? Lambert Chart convergence between Aircraft and Station 8°
| VAR at the Station | QDR | QTE | QUJ | QDM | VAR at the Aircraft |
|---|---|---|---|---|---|
| 4°E | 064° | 068° | 256° | 250° | 6°E |
QTE - QUJ = 180° - Lambert Chart convergence
256° - 068° = 180° + 8°
No: 613201
Aircraft and VOR
Location N hemisphere RMI reading 285° to VOR VAR at the Aircraft 4°E VAR at the Station 8°E Earth convergence between Aircraft and the VOR 6°
Question What bearing should be plotted from the VOR to the Aircraft on a Mercator chart?
| VAR at the Station | QDR | QTE | QUJ | QDM | VAR at the Aircraft |
|---|---|---|---|---|---|
| 8°E | 072° | 103° | 293° | 285° | 4°E |