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  2. Flight level - Wikipedia

    en.wikipedia.org/wiki/Flight_level

    The rule affected only those aircraft operating under IFR when in level flight above 3,000 ft above mean sea level, or above the appropriate transition altitude, whichever is the higher, and when below FL195 (19,500 ft above the 1013.2 hPa datum in the UK, or with the altimeter set according to the system published by the competent authority in ...

  3. Template:Flight level - Wikipedia

    en.wikipedia.org/wiki/Template:Flight_level

    The template takes a three-digit Flight level number and converts it into feet and meters. Usage. Flight level | 10}} → FL010 (1,000 ft; 300 m)

  4. Template:Convert - Wikipedia

    en.wikipedia.org/wiki/Template:Convert

    Converts measurements to other units. Template parameters [Edit template data] This template prefers inline formatting of parameters. Parameter Description Type Status Value 1 The value to convert. Number required From unit 2 The unit for the provided value. Suggested values km2 m2 cm2 mm2 ha sqmi acre sqyd sqft sqin km m cm mm mi yd ft in kg g mg lb oz m/s km/h mph K C F m3 cm3 mm3 L mL cuft ...

  5. Maltese units of measurement - Wikipedia

    en.wikipedia.org/wiki/Maltese_units_of_measurement

    The Maltese hand span, equivalent to the foot. Exactly 10 + 5 ⁄ 16 imperial inches. qasba: qasab, qasbiet 8 ~2.096 m ~2.292 yd This is exactly 82 + 1 ⁄ 2 inches, or 6 ft 10 + 1 ⁄ 2 in. It corresponds to the fathom, but was used in both land and sea contexts.

  6. Metre - Wikipedia

    en.wikipedia.org/wiki/Metre

    The metre (or meter in US spelling; symbol: m) is the base unit of length in the International System of Units (SI). Since 2019, the metre has been defined as the length of the path travelled by light in vacuum during a time interval of ⁠ 1 / 299 792 458 ⁠ of a second, where the second is defined by a hyperfine transition frequency of caesium.

  7. List of tallest structures – 400 to 500 metres - Wikipedia

    en.wikipedia.org/wiki/List_of_tallest_structures...

    This is a part of the list of tallest structures in the world, past and present of any type.. This list includes quite a lot of masts. A mast is a man-made support structure, commonly used on sailing ships as support for sails, or on land as radio masts and towers used to support telecommunication equipment such as radio antennas ("aerials" in the UK).

  8. List of mountains by elevation - Wikipedia

    en.wikipedia.org/wiki/List_of_mountains_by_elevation

    There are 14 mountains over 8,000 metres (26,247 ft), which are often referred to as the Eight-thousanders. (Some people have claimed there are six more 8,000m peaks in Nepal, making for a total of 20. [1])

  9. Data mile - Wikipedia

    en.wikipedia.org/wiki/Data_mile

    In radar-related subjects and in JTIDS, a data mile is a unit of distance equal to 6,000 feet (1,829 metres; 0.9875 nautical miles; 1.136 miles). An international mile is 0.88 data mile. The speed of light is 299,792,458 metres per second (983,571,056 ft/s), or about one foot per nanosecond .