Filter
Top Products
65
Navaid
Abbreviations
APPENDIX D
Lit Navaid Abbreviations
F Fixed – continuous and steady light
FL Single Flashing – flash repeated on given time period, not to exceed 30 per minute
FL(2) Group Flashing – group of regularly repeating flashes
FL(2+1) Composite Group Flashing – a complex light
FFL Fixed and Flashing – fixed light combined with a flashing light of higher intensity
Q Quick Flashing – light flashes at a rate of 60 flashes per minute
VQ Very Quick – light flashes at a rate greater than 60 flashes per minute
OC Occulating – alternating light and dark with duration of light longer than dark
ISO Isophase – alternating light and dark with duration of light and dark equal.
MO(A) Morse Code – different flash durations used to represent morse code characters
AL Alternating – different colors flashing alternately
DIR Directional – prefix indicates the light is directional
Lit Navaid Primary Colors
W = White R = Red G = Green Vi = Violet
Or = Orange Bu = Blue Y = Yellow Am = Amber
Unlit Navaid Abbreviations
S = Square J = Junction T = Triangle K = Range
M = Safe Water C = Crossing N = Special Purpose
Unlit Navaid Key Colors
G = Green R = Red W = White Y = Yellow B = Black
The following list shows the abbreviations for lit and
unlit navaid labels followed by a brief description of the
abbreviation.
GPS48revB.qxd 1/7/00 3:12 PM Page 65