Figure 4 - P-8010026

INSTRUMENT NAVIGATION

POSITIONING

A radial is a magnetic bearing from a VOR or TACAN station.

Radials are always numbered in three digits beginning with 001 and extending clockwise

through 360 (Magnetic North).

Figure 4

Your position can be determined by noting which of the 360 radials emanating from the

TACAN you are on by referring to the tail of the number 2 needle. This MAG bearing from

the station coupled with the direct readout of distance (slant rage) presents an exact location of

your aircraft from a specified navaid.

For example, the instruments depicted on the following page indicate that the aircraft is on the

260 radial 163 nautical miles from the TACAN.

2-4 NAVAID POSITIONING