TACAN Point to Point Navigation

TACAN POINT TO POINT NAVIGATION

An advantage to navigating with a TACAN is that an aircrew can navigate themselves

directly from one TACAN radial/DME fix to another without first flying to the TACAN station.

This is called POINT-TO-POINT NAVIGATION and can be accomplished with the CR-3

computer or with the BDHI.

CR-3 POINT TO POINTS

When using the CR-3 computer to solve point-to-point navigation problems, visualize the

wind side of the computer as a map with the center of the circular, green grid representing

the TACAN station. The green numbers around the edge of the circular grid represent

radials of the TACAN station. Each of the green concentric circles around the station

represents range rings. The value assigned to each ring (distance) is printed on the

Head/Tail/Crosswind lines. The following steps will utilize a present position of 309/ 11

(309 radial at 11 DME) (Figure4.6-12) and a destination of 180/15.

Figure 4.6-12 Tacan Point to Point 1

Once the radial and range have been determined for both the present position and the

destination, merely plot each corresponding point on the wheel in a manner similar to

plotting the wind in chapter 5 (Figures 4.6-13 & 4.6-14).

4.6-136