In scientific research, are metric units generally preferred?

VRB09KT – the VRB indicates the wind direction is variable; the wind speed is 9 knots. 1 1/4SM. This section of the METAR indicates visibility in statute miles. Mar 2, 2021 ... Can the lights comply with the 3-statute mile visibility requirement of the FAA? How well do the lights perform when mounted at both the ... Mar 14, 2025 ... EPA does not delegate National Pollutant Discharge Elimination System (NPDES) authorization past the 3-mile statutory boundary. Hydrostatic Test ... Mile, any of various units of distance, such as the statute mile of 5280 feet (1.609 km). It originated from the Roman mille passus, or “thousand paces,” ... Accordingly, 100 air miles are equivalent to 115.08 statute miles or 185.2 kilometers. "Commercial motor vehicle" means any self propelled or towed vehicle used ... statute mile. (2) Airplane, powered parachute, or weight-shift-control aircraft. If the visibility is less than 3 statute miles but not less than 1 statute mile ... Aug 5, 2019 ... Statute miles are the ordinary English miles of 1760 yards. They are called that by contrast to nautical miles, the “old mile” of 10 furlongs ... Mar 24, 2022 ... The U.S. statute mile, also called a survey mile, measures 1609.3472 meters, a difference of 3.2 millimeters (1/8 inch) per mile. This is due to ... I've wondered for years why FAA, in writing their regulations, uses "statute" miles in one regulation, and "nautical" miles in others. Fixed Wing Air Mileage, Per Statute Mile, 11.05. 8, A0435, Fixed Wing Air Mileage, Per Statute Mile, TH, 24.6. 9, A0436, Rotary Wing Air Mileage, Per Statute ...