What is the difference between visibility range and navigational distance in aviation?

A0425 · Ground mileage, per statute mile ; A0425 · Ground mileage, per statute mile, GM ; A0426, Ambulance service, advanced life support, non-emergency transport, ... 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. ... 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 ... ... mile of those boundaries. The authority granted by this section is subject ... (e) To the extent of any conflict, this section controls over other laws relating ... Mar 14, 2025 ... EPA does not delegate National Pollutant Discharge Elimination System (NPDES) authorization past the 3-mile statutory boundary. Hydrostatic Test ... rad = sm2rad(sm) converts distances from statute miles to radians, as measured along a great circle on a sphere with a radius of 3958.748 sm, the mean radius ... Jan 13, 2023 ... ... mile. Decreases the reimbursment rate for private aircreaft from $1.81 to $1.74 per statute mile. Increases the reimbursment rate for ... Nov 25, 2021 ... The US recognizes 4 lengths. Statute miles are part of the US Survey measurement system. 8 furlongs or 1.609347 km. 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 ... Noun · (UK) The mile of 5,280 feet or 1,760 yards, distinguished from the traditional mile of 5,000 feet employed before the 1593 Weights and Measures Act. · ( ...