directional control

non-directional beacon (NDB) / non directional beacon

anti-torque control pedal / directional control pedal

directional control pedal / anti-torque control pedal

directional-control hydraulic valve

directional control pedal

controlled directional mine

frequency and directional chart

non-directional jumping mine

directional tread type tire

non-directional radio beacon with marker (NDB/MRB)

non-directional antenna

non-directional beacon (NDB )

directional gyro

directional noise measurement

directional radio

directional trimming actuator

non-directional beacon (NDB)

non-directional radio beacon (NDB)

non-directional radio beacon

omni-directional radio range

directional stability

directional infrared counter measures (DIRCM)

directional infrared countermeasures (DIRCM)

directional

directional angle

directional antipersonnel weapon

directional marker

directional napalm fougasse bomb

directional traverse

directional beacon

directional finding bearing

directional fragmentation mine