Obstruction lights are used to warn pilots of potential hazards on high ground, tall buildings, and towers. They can be red or white and use LEDs for illumination. They require an independent power source and other visibility markers. Failing to install them can result in fines and liability.
An obstruction light is a light placed to warn aviators of a potential navigational hazard so they can use caution. People install obstruction lights on high ground, tall buildings, and towers, all of which could endanger pilots, especially during low-visibility conditions. Most nations require the use of such lights on certain types of structures, and they may be highly recommended in other cases. They are part of a larger family of aviation lighting designed to assist pilots with navigation in a variety of conditions.
Obstruction lights can be red or white. They should be positioned for maximum visibility, ensuring pilots approaching from any direction can see them. An obstruction light often uses light-emitting diodes (LEDs) for illumination because they are durable and use minimal power. To ensure that pilots wearing night vision goggles, who are not normally sensitive to LEDs, can see the obstruction, other lights or visual targets may be added for safety.
An obstruction light must have an independent power source to ensure that it will continue to operate even if power to the rest of the structure is lost. Most structures have several such lights for increased visibility. They can be placed at various heights on the structure to provide information on the general shape and height of the structure. Even if the pilots can’t see the structure itself, they can find the obstruction lights and know to stay clear of that area.
In addition to being marked with obstruction lights, tall structures need to have other visibility markers so they can be seen in daylight when the lights will be hard to see. These can include brightly colored painted stripes and other details designed to stand out from the environment, increasing visibility for pilots. Aviation hazards are also marked on the charts so pilots know to look out for them, but it is important to provide clear indicators of added safety and instances where pilots stray and are unaware of an approaching navigational hazard.
Many companies make obstruction light kits and offer consulting services to help people with the proper placement of security lights. Aviation officials can also provide advice and assistance, including brochures outlining the law and best practices when it comes to properly lighting structures that may pose a hazard to navigation. Failing to mount an obstruction light can subject people to fines and liability if a rider is involved in an accident.
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