Runway Lights - P-12820124

T-45C TS INav-04; ADV INav-02

Components and Characteristics of the Instrument Landing System (ILS)

b. Spaced at 100 ft intervals

System starts 100 ft from landing threshold and extends to

3,000 ft from the threshold or the midpoint of the runway,

whichever is less

C. Runway Lights

Sg 4, fr 11-12

Runway Lights

Runway End Identifier Lights (REILs)

Runway Edge Light System

1. Runway End Identifier Lights (REILs)

a. Provides rapid and positive ID of the approach end of a runway

b. Consists of a pair of synchronized flashing lights laterally

located on each side of the runway threshold

May be either omnidirectional or unidirectional facing the

approach area

2. Runway Edge Light System

Sg 4, fr 13-14

Runway Edge Light System

a. Identifies a runway:

(1) Surrounded by a large concentration of other lighting

(2) That lacks contrast with surrounding terrain

(3) During reduced visibility

b. Physical characteristics:

(1) Normally white except for instrument runways where amber

lights replace the white edge lights for the last 2,000 ft of

the runway or half the runway length, whichever is less.

This forms a caution zone for landing aircraft

(2) Lights shine green outward from the runway approach end

to identify threshold

(3) Lights shine red from end of the runway toward departure

end to indicate the end of runway to departing aircraft

Classification is according to intensity or brightness

Sg 4, fr 15-16

HIRLs, MIRLs, LIRLs

(1) High Intensity Runway Lighting (HIRL)

(2) Medium Intensity Runway Lighting (MIRL)

(3) Low Intensity Runway Lighting (LIRL)

Page 4-15

(2-02) Original