chapter  11
5 En route navigation using radio navigation aids
Pages 4

In the US, a combined rho-theta system was

introduced for military aircraft known as

TACAN (tactical air navigation). This system is a

short-range bearing and distance navigation aid

operating in the 962-1215 MHz band. TACAN

navigation aids (see Figure 11.7) are often co-

located with VOR navigation aids; these are

identified on navigation charts as ‘VORTAC’.