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  2. Here's What to Do If Your Fireplace Pilot Light Goes ... - AOL

    www.aol.com/heres-fireplace-pilot-light-goes...

    A pilot light is comprised of a thermocouple, gas valve, electric ignition source, and a small pilot tube that carries the gas to the pilot light.

  3. Pilot light - Wikipedia

    en.wikipedia.org/wiki/Pilot_light

    A pilot light is a small gas flame, usually natural gas or liquefied petroleum gas, which serves as an ignition source for a more powerful gas burner. Originally a pilot light was kept permanently alight, but this wastes gas. Now it is more common to light a burner electrically, but gas pilot lights are still used when a high energy ignition ...

  4. Pilot-controlled lighting - Wikipedia

    en.wikipedia.org/wiki/Pilot-controlled_lighting

    Pilot-controlled lighting (PCL), also known as aircraft radio control of aerodrome lighting (ARCAL) or pilot-activated lighting (PAL), is a system that allows aircraft pilots to control the lighting of an airport or airfield's approach lights, runway edge lights, and taxiways via radio.

  5. Aviation obstruction lighting - Wikipedia

    en.wikipedia.org/wiki/Aviation_obstruction_lighting

    Aircraft warning lights at the Mannheim telecommunications tower, in the background the bright torchlight of a steam cracker, in the distance warning lights from wind turbines Structure using a white strobe Structure using a Red/White Strobe Closeup of an aircraft warning light on top of a highrise in Changzhou, China Closeup of an aircraft warning light on top a factory facilities Structure ...

  6. Lasers and aviation safety - Wikipedia

    en.wikipedia.org/wiki/Lasers_and_aviation_safety

    FAA flight simulator showing distraction where the light does not obscure vision but can distract the pilot. Light intensity 0.5 μW/cm 2; for example, a legal 5 mW laser pointer at 3,700 feet (1,100 m). FAA flight simulator showing veiling glare where it is hard to see through the light to the background scene.

  7. Aviation light signals - Wikipedia

    en.wikipedia.org/wiki/Aviation_light_signals

    Air traffic control signal light gun in use at base flight tower. In the case of a radio failure or aircraft not equipped with a radio, or in the case of a deaf pilot, air traffic control may use a signal lamp (called a "signal light gun" or "light gun" by the FAA [1] [2]) to direct the aircraft.

  8. Navigation light - Wikipedia

    en.wikipedia.org/wiki/Navigation_light

    Watercraft navigation lights must permit other vessels to determine the type and relative angle of a vessel, and thus decide if there is a danger of collision. In general, sailing vessels are required to carry a green light that shines from dead ahead to 2 points (22 + 1 ⁄ 2 °) abaft [note 1] the beam on the starboard side (the right side from the perspective of someone on board facing ...

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