DME stands for which term?

DME stands for which term?

• A. Distance Measuring Equipment
• B. Distance Measuring Engine
• C. Direct Measurement Equipment
• D. Distance Monitoring Equipment

Answer: (A)

Distance Measuring Equipment is a navigation aid that provides distance information to pilots. It works by the aircraft querying a ground-based DME transmitter and receiving a reply; the time it takes for the signal to travel is used to calculate the distance, usually shown in nautical miles as slant range from the facility. DME is commonly paired with a VOR, giving both directional guidance and distance (VOR/DME) to help determine position and assist with approaches. The other terms don’t reflect the established aviation terminology for this system, so they aren’t used to name the equipment.

Distance Measuring Equipment is a navigation aid that provides distance information to pilots. It works by the aircraft querying a ground-based DME transmitter and receiving a reply; the time it takes for the signal to travel is used to calculate the distance, usually shown in nautical miles as slant range from the facility. DME is commonly paired with a VOR, giving both directional guidance and distance (VOR/DME) to help determine position and assist with approaches. The other terms don’t reflect the established aviation terminology for this system, so they aren’t used to name the equipment.