Figure 15 - P-8010049

INSTRUMENT NAVIGATION

Figure 15

Figure 16 is another example. You can not enter/exit J-70 at Spokane (GEG). The airway line

cuts through the compass rose and there are no radial designations for J-70 in the vicinity of

GEG. This indicates that Spokane is NOT part of J-70.

Figure 16

Let's turn our attention to intersections. The AIM (Airman's Information Manual) defines

intersection as:

A POINT DEFINED BY ANY COMBINATION OF COURSES, RADIALS OR

BEARINGS OF TWO OR MORE NAVIGATION AIDS.

Application of this definition to enroute charts has provided two types of intersection:

NAMED and UNNAMED. NOBEL is a "NAMED" intersection. (Figure 17)

Figure 17

RADIAL TRACKING AND COURSE CONTROL 3-11