Navigation light

Japanese: 航空灯 - こうくうとう(英語表記)navigation light
Navigation light

A type of light equipped on an aircraft. It indicates the position and direction of aircraft between aircraft flying at night, or to other aircraft. Aircraft flying at night or parked at an airport display this to indicate their presence and prevent collisions. There are constant light and flashing light types. Note that while aviation lights are lights equipped on airplanes, aviation lights are facilities that use light to assist aircraft navigation, and are one of the air safety facilities.

To indicate the general direction of an aircraft, a green light is displayed on the right wingtip, a red light on the left wingtip, and a white light on the tail in the direction of flight. The green light is visible from a range of 110 degrees to the starboard side from directly ahead, the red light is visible from a range of 110 degrees to the port side from directly ahead, and the white tail light is visible from a range of 70 degrees to the left and right from directly behind, making a total of 140 degrees. This allows you to see the lights of other aircraft and know their relative position. Navigation lights use the same colors as ship navigation lights.

In addition to the above, there are also collision prevention lights that aircraft turn on while in flight to prevent collisions. These lights are red flashing lights that are attached to the top and bottom of the fuselage.

[Kyoki Aoki and Shinichiro Nakamura]

[Reference items] | Aviation lights | Airplanes
Examples of aviation lights
©Toshihisa Watanabe ">

Examples of aviation lights


Source: Shogakukan Encyclopedia Nipponica About Encyclopedia Nipponica Information | Legend

Japanese:

飛行機装備灯火の一つ。夜間飛行の航空機間で、または航空機以外に航空機の位置および方向を示すものである。夜間における航行中あるいは飛行場に停留中の航空機が自分の存在を示し、衝突の防止を図るために表示する。不動光方式と閃光(せんこう)方式がある。なお、航空灯が飛行機に装備される灯火であるのに対し、航空灯火は灯光により航空機の航行を援助するための施設で、航空保安施設の一つである。

 航空機のだいたいの向きを知るための灯火として、進行方向に対し、右翼端に緑色灯、左翼端に赤色灯、尾部に白色灯が表示される。緑色灯は真正面から右舷(うげん)側に110度の範囲、赤色灯は真正面から左舷側に110度の範囲、白色尾灯は真後ろから左右に70度ずつ、つまり140度の範囲から、それぞれ視認できるよう照射される。これにより、相手機の灯火を見て自機との相対位置関係を知ることができる。航空灯は船舶の航海灯と同じ色を使っている。

 航空灯にはこのほか、衝突防止のために航行中の飛行機が点灯する衝突防止灯がある。この灯火は赤色の閃光灯で、胴体の上下につけられている。

[青木享起・仲村宸一郎]

[参照項目] | 航空灯火 | 飛行機
航空灯の例
©渡部利久">

航空灯の例


出典 小学館 日本大百科全書(ニッポニカ)日本大百科全書(ニッポニカ)について 情報 | 凡例

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