INTRODUCTION TO LIGHT

Describing a Light's Characteristics Light's Characteristics Rhythm of The Light Color of The Light Examples

Prepared by Selçuk NAS

INTRODUCTION TO LIGHT

Prepared by Selçuk NAS

Major light, minor light, lighthouse Lighted offshore platform L ighted beacon tower Lighted beacon Articulated light; Buoyant beacon, resilient beacon Light vessel, Lightship, Normally manned light-vessel Unmanned light-vessel, light float LANBY, superbuoy as navigational aid

DESCRIBING A LIGHT'S CHARACTERISTICS

THREE FACTORS ARE USED TO DESCRIBE A LIGHT'S CHARACTERISTICS: 1) LIGHT RHYTHM

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LIGHTED AIDS TO NAVIGATION ARE EITHER "FIXED" (CONTINUOUSLY ON) OR GENERALLY EXHIBIT RHYTHMS SUCH AS: "FLASHING", "OCCULTING", "ISOPHASE", ETC. (SEE NEXT CHART)

2) LIGHT PERIOD

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FOR OTHER THAN "FIXED" LIGHTS, THE TIME IN SECONDS DURING WHICH THE PATTERN OF FLASHES IS REGULARLY REPEATED

3) LIGHT (LENS) COLOR

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RED AND GREEN (HAVE LATERAL SIGNIFICANCE)

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WHITE AND YELLOW (HAVE NO LATERAL SIGNIFICANCE) FOR EXAMPLE: A LIGHT WITH PUBLISHED CHARACTERISTICS OF " Fl G 6s " WOULD HAVE A FLASHING LIGHT RHYTHM, GREEN LENS COLOR, ONE FLASH PER PERIOD, AND A PERIOD OF SIX SECONDS .

LIGHT'S CHARACTERISTICS

A. RHYTHM OF THE LIGHT B. COLOR OF THE LIGHT C. PERIOD OF THE LIGHT D. LIGHT ELEVATION E. NOMINAL RANGE

Occ (3+1) R 10 sec. 25 m. 6 M.

A B C D E

A. RHYTHM OF THE LIGHT 1.

2.

3.

4.

5.

SABİT (FİX), Sürekli Işık Veren ÇAKARLI (FLASHING), Işık Süresi, Karanlık Süresinden Az SABİT ÇAKARLI (FİX FLASHING), Hem Sürekli Hem De Çakarlı UZUN ÇAKARLI (LONG FLASHING), Işık Süresi Min. 2 Saniye Çakarlı İZOFAS (ISOPHASE), Işık Ve Aydınlık Süreleri Eşit 6. HUSUFLU (OCCALTING), Işık Süresi, Karanlık Süresinden Fazla 7. SERİ ÇAKARLI (QUICK), 8.

Dakikada 50 – 80 Çakar KESİNTİLİ SERİ ÇAKARLI (INTERRUPT QUICK), Dakikada 50 – 80 Çakar, Kesinti Var 9. HIZLI SERİ ÇAKARLI (VERY QUICK), 10.

Dakikada 80 – 160 Çakar KESİNTİLİ HIZLI SERİ (INTERRUPT. VERY QUICK), 11. Dakikada 80 – 160 Çakar, Kesinti Var ÇOK HIZLI SERİ (ULTRA QUICK), Dakikada 160 Fazla Çakar [ UQ ] 12. KESİNTİLİ ÇOK HIZLI SERİ (INTERRUPT ULTRA QUICK), Dakikada 160 Fazla Çakar, Kesinti Var 13.

14.

MORS KODU (MORSE CODE), Mors Sinyali Şeklinde Çakan RENK DEĞİŞTİREN (ALTERNATING), Renk Değiştiren [ F ] [ Fl ] [ FFl ] [ LFl ] [ Iso ] [ Occ ] [ Q ] [ IQ ] [ VQ ] [ IVQ ] [ IUQ ] [ Mo ] [ Al ]

B. COLOR OF THE LIGHT BEYAZ ( WHITE ) KIRMIZI ( RED ) YEŞİL ( GREEN ) SARI ( YELLOW ) PORTAKAL ( ORRANGE ) [ W ] [ R ] [ G ] [ Y ] [ O ]

AB. RHTYHM AND COLOR OF THE LIGHTS 1. SABİT ( FIX ) ( F ) F F R F G

2. ÇAKARLI – ŞİMŞEKLİ (FLASHING) ( Fl )

:

Fl Fl R Fl G Fl (3) Fl (3) R Fl (3) G Fl (2+1) Fl (2+1) R Fl (2+1) G Fl (2) Fl (2) R Fl (2) G Fl (3+2) Fl (3+2) R Fl (3+2) G

3. SABİT ÇAKARLI (FİX FLASHING) ( FFl )

:

FFl FFl R FFl G

5 . BÖLÜM FENERLER 4. UZUN ÇAKARLI (LONG FLASHING) ( LFl )

:

LFl LFl R LFl G

Examples of a Full Light Description

TYPE OF LIGHT

Lights Marking Fairways Leading lights with leading line (firm line is fairway) and arcs of visibility; Bearing given in degrees and minutes Leading lights ‡ : any two objects in line Bearing given in degrees and minutes Lights in line, marking the sides of a channel Direction Lights Direction light with narrow sector and course to be followed, flanked by darkness or unintensifed light Direction light with narrow fairway sector flanked by sectors of different character Sector Lights Sector light on standard charts Special Lights Aero light All-round light with osbscured sector

THIS PRESENTATION WAS PREPARED BY SELÇUK NAS

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