rotation of units

barrier troops / blocking detachments (units) / anti-retreat forces

civilian relief units

combat-ready units

designated units

fill out units

fix enemy units

formed police units

halting or bunching (of units)

intelligence staff officer (brigade, battalion & armored cavalry units level) (S2)

internal security units

multinational special units operations (MSUOPS)

traverse rotation

combined arms units and formations continuous artillery combat support

para-military secessionist units

rotation voltage displacement transducer

units to round-out the active Army

rearming and refueling aircraft rotation

correction for rotation

cross-reinforced units

slow-rotation fin-stabilized HEAT projectile

bogie-rotation mechanism

unification of units of measurement panel

synchronous rotation

blade flapping (the vertical movement in its plane of rotation because of differences in lift between the advancing and retreating blades)

chaotic rotation

direction of blade rotation

international earth rotation service

main-rotor rotation direction

mean angular velocity of rotation

metric units (MU)

Nr (Nr = speed of rotation)

Nr gauge (Nr = speed of rotation) / rotor speed sensor