frequency and directional chart

non-directional beacon (NDB) / non directional beacon

fire capabilities chart / fire capability chart

enroute chart / en-route chart

pulse repetition frequency (PRF) / pulse-repetition frequency

observation and fields of fire, avenues of approach, key and decisive terrain,obstacles, and cover and concealment (OAKOC)

controlled directional mine

directional-control hydraulic valve

non-directional jumping mine

directional tread type tire

directional control pedal

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

non-directional antenna

non-directional beacon (NDB )

anti-torque control pedal / directional control pedal

directional control pedal / anti-torque control pedal

directional gyro

directional noise measurement

directional radio

directional trimming actuator

non-directional beacon (NDB)

directional antenna

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