surface position indicator (SPI)

naval surface forces, surface fleet, surface forces

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

moving map ground position indicator

adjacent PPI (plan position indicator)

plan-position indicator repeater

vehicle position and direction indicator

plan position indicator (PPI)

launching position (missile position)

changeover from travelling position to fire position

position and navigation unit / position navigation unit (PNU)

in position / in-position

surface-to-surface artillery

surface-to-surface missile (SSM)

ballistic surface-to-surface missile

control surface / control-surface

guided surface-to-surface missile

surface-to-surface

surface-to-surface delivery system

surface-to-surface missile (rocket)

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

target indicator

telltale indicator