reciprocal track angle index

reciprocal heading index

GRAU index / GRAU-Index

azimuth-scale index / azimuth scale index

reciprocal sight line

reciprocal dislocation

reciprocal course

reciprocal heading

drift angle index

track skirt (track shield)

track while scan / track-while-scan (TWS)

desired track angle

track angle

blind angle / dead angle

chart index (cart.)

index contour line (cart.)

index line / mark

index to adjoining sheets (cart.)

index to boundaries

outlay index

qualitative index

quantitative index

total obligational authority index

Global Firepower Index (GPI)

index of technical publications

retention index monitoring

azimuth index

index error

index mark (of elevation receiver)

elevation fine index

elevation micrometer index

elevation scale index

digital index