DME discrepancy is typically expressed in which unit?

DME discrepancy is typically expressed in which unit?

• A. Kilometers
• B. Miles
• C. Nautical miles
• D. Feet

Answer: (C)

DME distance is given in nautical miles, so any discrepancy is expressed in nautical miles to stay consistent with how aircraft navigation distances are measured and read in the cockpit. In aviation, horizontal distances on charts, flight plans, and instrument readings are standardized in nautical miles because they relate directly to latitude/longitude coordinates and simplify calculations. One nautical mile is about 1.852 kilometers or 6,076 feet, while feet are a vertical unit and kilometers or statute miles aren’t the standard for DME readouts. So the difference you see between indicated DME and the actual distance is most naturally stated in nautical miles.

DME distance is given in nautical miles, so any discrepancy is expressed in nautical miles to stay consistent with how aircraft navigation distances are measured and read in the cockpit. In aviation, horizontal distances on charts, flight plans, and instrument readings are standardized in nautical miles because they relate directly to latitude/longitude coordinates and simplify calculations. One nautical mile is about 1.852 kilometers or 6,076 feet, while feet are a vertical unit and kilometers or statute miles aren’t the standard for DME readouts. So the difference you see between indicated DME and the actual distance is most naturally stated in nautical miles.