what is msl in aviation?
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Mean Sea Level (MSL) is the datum for measurement of elevation and altitude.
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In aviation, atmospheric sciences and broadcasting, a height above ground level (AGL) is a height measured with respect to the underlying ground surface. This is as opposed to altitude/elevation above mean sea level (AMSL), or (in broadcast engineering) height above average terrain (HAAT).
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When aircraft are separated vertically, horizontal separation can be reduced without compromising safety. In controlled en route airspace, the horizontal separation standard between aircraft flying at the same altitude is 5 nm (9260 m). In terminal area airspace, the minimum separation is 3 nm (5500 m).
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A Segment is the operation of a flight with a single flight designator (flight number) between the point where passengers first board an aircraft and their final destination. A Leg is a trip of an aircraft from one airport to another. Short flights are 1 leg. Long-haul may have 2 or more legs.
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The Military Demarcation Line (MDL), sometimes referred to as the Armistice Line, is the land border or demarcation line between North Korea and South Korea. On either side of the line is the Korean Demilitarized Zone (DMZ). The MDL and DMZ were established by the Armistice.
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Mean sea level (MSL) (often shortened to sea level) is an average level of the surface of one or more of Earth's bodies of water from which heights such as elevation may be measured. ... The term APSL means Above Present Sea Level, comparing sea levels in the past with the level today.
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The PPL is therefore the “prerequisite” to CPL. The CPL program entails a minimum of 80 hours groundschool and 200 flight hours. One of the biggest achievements in the CPL course is to obtain the 200 flight hours. This is the main time consuming element.
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Well-Known Member. Ground stations report AGL; pilots report MSL (what they see on their altimeter). So, METARs and TAFs are AGL, while UAs are MSL.
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The alula is a small structure located at the joint between the hand-wing and arm-wing of birds and is known to be used in slow flight with high angles of attack such as landing. It is assumed to function similarly to a leading-edge slat that increases lift and delays stall.
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Cargo (lb.) Milwaukee Mitchell International Airport (IATA: MKE, ICAO: KMKE, FAA LID: MKE) is a civil-military airport 5 miles (8 km) south of downtown Milwaukee, Wisconsin, United States. ... Milwaukee Mitchell International Airport covers 2,180 acres (880 ha) and has five asphalt and concrete runways.
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The three letter identifier for Louis Armstrong New Orleans International Airport is MSY. It stands for Moisant Stock Yards.
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Mean Sea Level (MSL) is the datum for measurement of elevation and altitude. Mean Sea Level is the equipotential surface of the Earth as described by the WGS84 geoid.
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In aviation, endurance is the maximum length of time that an aircraft can spend in cruising flight. Endurance is different from range, which is a measure of distance flown. For example, a typical sailplane exhibits high endurance characteristics but poor range characteristics.
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Unless otherwise authorized by the FAA, for Part 121/135 operators and sometimes Part 91 operators, standard takeoff minimums under IFR are the following: 1 And 2 Engines: 1 Statute Mile Visibility. 3 Or More Engines: 1/2 Statute Mile Visibility. Helicopters: 1/2 Statute Mile Visibility.
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Due to its international status, EuroAirport has three IATA airport codes: BSL (Basel) is the Swiss code, MLH (Mulhouse) is the French code and EAP (EuroAirport) is the neutral code.
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The basic VFR weather minimums (14 CFR 91.155) are specific to types of airspace and altitudes. ... The rationale for greater visibility and more distance from clouds when flying above 10,000 MSL is to give VFR pilots more time to see and avoid faster aircraft that are popping in and out of clouds.
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Once you know the cloud heights in MSL, you can determine where you should fly, since altimeters are set in feet above MSL, not in feet AGL. Example: At Grand Forks International Airport (KGFK), clouds are reported broken at 7,000 feet AGL.