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    FAR 1.1 defines night as "the time between the end of evening civil twilight and the beginning of morning civil twilight, as published in the "Air Almanac, converted to local time" The Aeronautical Information Manual defines civil twilight as "Civil twilight is defined to begin in the morning, and to end in the evening when the center of the ...

    • Brighter Nights
    • External vs. Internal Light
    • Weighing the Advantages
    • Education and Training

    The brighter scene provided by NVGs — which makes it possible for pilots to see objects not otherwise visible — in-creases situational awareness, enhances safety and improves flight capability. However, as impressive as these devices are at increasing the ability to see and fly at night, the technology, as many researchers say, “does not turn night...

    Perhaps the most overlooked limitation of NVGs is their inability to discriminate between light originating from the external world and light originating inside the cockpit. NVGs have an “automatic gain control (AGC),” which reacts to the ambient light level by increas-ing the multiplication factor when the ambient light level decreases and decreas...

    Operators must weigh the advantages and disad-vantages before deciding whether to implement an NVG system. CareFlight, an Australian HEMS operator, recommends in its NVG Implementation Guide that any operator contemplating implementa-tion of an NVG system first conduct a detailed analysis and formulate a business plan.6 “Operators considering the N...

    Once a decision has been made to implement an NVG system, operators and pilots must be thor-oughly familiar with the advantages and disadvan-tages of flight using NVGs. This can be achieved through educational courses covering the essen-tials of night vision technologies, offered by the operator or an outside training company. These courses should ...

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  3. Oct 12, 2012 · In § 1.1, revise the definition of “Night” to read as follows: Night means the time between the end of evening civil twilight and the beginning of morning civil twilight, as published in the Air Almanac, converted to local time. Issued in Washington, DC, on September 20, 2012. Acting Director, Office of Rulemaking.

  4. Jun 7, 2021 · coalescing aviation system user and provider technical requirements in a manner that helps government and industry meet their mutual objectives and responsibilities; analyzing and recommending solutions to the system technical issues that aviation faces as it continues to pursue increased safety, system capacity and efficiency;

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  5. Apr 27, 2018 · 11 According to this handy document from EASA, night is defined as: …the period between the end of evening civil twilight and the beginning of morning civil twilight, or such other period between sunset and sunrise as may be prescribed by the appropriate authority, as defined by the Member State. (The FAA and ICAO use a similar definition.)

  6. May 16, 2022 · Part 1 of Title 14 of the Code of Federal Regulations (14 CFR) defines a number of terms related to night flights. Definition 1 – Night. First and foremost, it is vital to understand the FAA’s night flight requirements. The word “night” obtains its first significant meaning. The interval between true sunset and actual sunrise.

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