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Oct 28, 2023 · The FAA's definition of night time is in Section 1.1 of the FARs. Here's what they have to say: "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."
Apr 27, 2018 · 4 Answers. Sorted by: 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.
Mar 8, 2023 · In general, the FAA defines "night time" for polar flights as any time the sun is more than 18 degrees below the horizon. This is known as "astronomical twilight." The exact definition can vary depending on the location and time of year, so it's important to consult the appropriate charts or tools.
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- 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 ...
A 1.5 percent climb gradient is an altitude gain of one and one-half feet per 100 feet of horizontal travel. Climb gradient may also be expressed as a function of altitude gain per nau-. Ice will accumulate unevenly on the airplane. It will add weight and drag (primarily drag), and decrease thrust and lift.
Oct 13, 2021 · The most formal “definition” of night is found in 14 CFR 1.1, which states that night is “the time between the end of evening civil twilight and the beginning of morning civil twilight, as published in the American Air Almanac, converted to local time”. This is the definition you will use for logging night flight time.
14 CFR 61.1 (b) (12) and (13) Definitions—Night vision goggles and operations. 14 CFR 61.31 (k) Additional training required for night vision goggle operations. 14 CFR 61.51 (k) Logging night vision goggle time. 14 CFR 61.57 (f) Night vision goggle operating experience. 14 CFR 61.57 (g) Night vision goggle proficiency check.
