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  2. V speeds - Wikipedia

    en.wikipedia.org/wiki/V_speeds

    Incorrectly, or as an abbreviation, some documentation refers to V ref and/or V rot speeds as "V r." [29] V S: Stall speed or minimum steady flight speed for which the aircraft is still controllable. [7] [8] [9] V S 0: Stall speed or minimum flight speed in landing configuration. [7] [8] [9] V S 1

  3. Knot (unit) - Wikipedia

    en.wikipedia.org/wiki/Knot_(unit)

    As a result, nautical miles and knots are convenient units to use when navigating an aircraft or ship. On a standard nautical chart using Mercator projection, the horizontal (East–West) scale varies with latitude. On a chart of the North Atlantic, the scale varies by a factor of two from Florida to Greenland. A single graphic scale, of the ...

  4. List of aviation, avionics, aerospace and aeronautical ...

    en.wikipedia.org/wiki/List_of_aviation,_avionics...

    Aircraft Maintenance Manual AMO Approved Maintenance Organization AMS Air management system AMSL Above mean sea level: AMP Aircraft maintenance program AMT Aircraft Maintenance Technician: ANC Active noise cancellation AND Aircraft Nose Down ANN Annunciator panel: Caution warning system normally containing visual and audio alerts to the pilot ANPT

  5. Airspeed indicator - Wikipedia

    en.wikipedia.org/wiki/Airspeed_indicator

    At a glance, the pilot can determine a recommended speed (V speeds) or if speed adjustments are needed. Single and multi-engine aircraft have common markings. For instance, the green arc indicates the normal operating range of the aircraft, from V S1 to V NO. The white arc indicates the flap operating range, V SO to V FE, used for approaches ...

  6. Forces on sails - Wikipedia

    en.wikipedia.org/wiki/Forces_on_sails

    The forward driving force (F R) component contributes to boat velocity (V B), which is, itself, a determinant of apparent wind velocity. Absent lateral reactive forces to F T from a keel (in water), a skate runner (on ice) or a wheel (on land), a craft would only be able to move downwind and the sail would not be able to develop lift.

  7. Hull speed - Wikipedia

    en.wikipedia.org/wiki/Hull_speed

    Hull speed can be calculated by the following formula: where is the length of the waterline in feet, and is the hull speed of the vessel in knots. If the length of waterline is given in metres and desired hull speed in knots, the coefficient is 2.43 kn·m −½.

  8. Indicated airspeed - Wikipedia

    en.wikipedia.org/wiki/Indicated_airspeed

    Supersonic aircraft, like the Concorde and military fighters, use the Machmeter as the main speed instrument with the exception of take-offs and landings. Some aircraft also have a taxi speed indicator for use on the ground. Since the IAS often starts at around 74–93 km/h (40–50 kn) (on jet airliners), pilots may need extra help while ...

  9. Battenberg course indicator - Wikipedia

    en.wikipedia.org/wiki/Battenberg_Course_Indicator

    Similar to Mark III. The circular scale attached to the end of the 'own ship' bar was moved to be part of the pivot assembly so that it is fixed relative to the 'guide bar' instead of being fixed relative to the 'own ship' bar. The 'own ship' bar was redesigned with a pointer on the end to read off the scale. [1] [4]