adjacent PPI (plan position indicator)

plan position indicator (PPI)

plan-position indicator repeater

PPI sweep (of a radar display)

PPI tube

adjacent

adjacent contour

adjacent unit

adjacent route

adjacent channel

aerodrome adjacent territory

adjacent axe

adjacent munition

instantaneous vertical speed indicator / instantaneous vertical-speed indicator (IVSI)

operational plan; operation plan

surface position indicator (SPI)

moving map ground position indicator

vehicle position and direction indicator

launching position (missile position)

changeover from travelling position to fire position

position and navigation unit / position navigation unit (PNU)

in position / in-position

air-flow indicator

artificial horizon (gyro horizon/ attitude indicator)

desiccant indicator

gyro course indicator

indicator console

indicator lamp

indicator light

indicator system

performance indicator

radiac computer-indicator

range height indicator (RHI) scope