B4 and C4 Tower Types

The B43 and C4 tower types are over 1050′ tall but not more than 1400′ excluding any appurtenances and are lit by 12 flashing L-856 white high intensity beacons.

B4 Towers

B towers have no appurtenances greater than 40′ so no L-865 beacon is required

C4 Towers

C towers have appurtenances greater than 40′ and 1 L-865 white medium intesity beacon is required on top

broadcast, obstruction, utilities, white lighting FTB 302 White Medium Intensity Lighting
L-865 Xenon AOL Strobe for Medium Intensity Applications
broadcast, high intensity, international, obstruction, utilities FTB 205 High Intensity Xenon
L-856 Tower & Obstruction Light – Single Enclosure
broadcast, high intensity, international, obstruction FTB 204 High Intensity Lighting
L-856 Xenon Obstruction Light – Split Enclosure