The Reason for Why Lighting Is Dimmed During Aircraft Takeoff and Landing Procedures

If you are a regular flier on commercial aircraft, you can most likely recall most of the common steps for flight preparation, takeoff, and landing. From securing trays to ensuring your belt is buckled, there are many procedures that are standard for each operation. One of these is the dimming of cabin lights, that of which is always conducted for every takeoff when the flight is cleared or during the moments proceeding the wheels touching the runway floor. While passengers may be aware of the rationale behind safety procedures surrounding belts, trays, and seats, they may not be familiar with the reasoning behind dimming lights. In this blog, we will discuss why aircraft interior lighting and fixtures are dimmed during takeoff and landing, and how it promotes increased safety.

There are two reasons as to why aircraft lights are dimmed, those of which depend on the time of the flight. During daylight hours, dimming lights is not entirely necessary in terms of safety, but it does have its benefits for sustainability and performance. By shutting off lights during the takeoff stage, power usage can be reduced so that engine power can be prioritized for optimal propulsion. This typically reduces the takeoff roll, allowing for the vehicle to become airborne quicker. As a result, dimming aircraft interior lighting can be beneficial during daylight hours and operations.

Alongside conserving power, dimming the aircraft lights also has a major impact on safety, especially when a flight is being conducted in low-light conditions. In general, it takes a single individual anywhere from a few minutes to a half an hour to fully adjust to changes in lighting, and it is important for various individuals to have an ample ability to see for the means of safety. This is especially crucial in the instance of an emergency, ensuring that passengers and crew members can all traverse the aircraft as needed without running into harm. If lights are dimmed during an emergency, individuals will also be able to see emergency exit lights better, increasing their ability to rapidly get to safety.

While having better vision within the aircraft itself is important during low light conditions, flight crew members can also benefit from being able to see outside of aircraft windows as well. This is why many flight attendants will ask passengers to keep their windows open during the takeoff and landing phase, allowing them to keep an eye on aircraft engines and other assemblies to be sure any abnormalities or hazards are spotted as soon as possible. Additionally, maintaining the ability to use the view outside aircraft windows as a reference to orientation can promote comfort and safety as crew members and passengers avoid becoming disoriented. Nevertheless, all airliners will have their own standards for the operations of lights, some having lighting fixtures dimmed or brightened as necessary for their own safety procedures.

If you operate aircraft and require various aircraft interior parts or lighting fixtures for your standard operations, look no further than Aviation Axis. On our website, we offer customers access to over 2 billion new, used, obsolete, and hard-to-find components that have been sourced from leading global manufacturers that we trust. As you peruse our expansive catalogs, we encourage you to take advantage of our online RFQ forms so that you may receive competitive quotes for your comparisons with ease. Within 15 minutes of receiving a completed form, a dedicated representative will reach out with a solution to your needs. Get started on the procurement process today and see how Aviation Axis can operate as your strategic sourcing partner for all your various needs!


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