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16-01-07
EXTERNAL LIGHTS
The following external lights make the aircraft visible to other aircraft and controllers:
-Anti-collision strobe lights
-Wing tip anti-collision strobe lights (optional)
-Logo lights (optional)
-Navigation lights
-Rotating beacons
COMPONENTS AND OPERATION
The wing inspection lights are mounted on the either side of the fuselage to visually inspect the wing for ice formation.
The navigation lights allow visual tracking as well as orientation or position of an airplane relative to an observer. The wing tip navigation lights utilize a dual light system for increased dispatch reliability. This consists of a primary, and secondary unit under the same lens in each wing tip. If the primary navigation light fails, the secondary light will illuminate when the NAV switch located on the right secondary power center (right avionics rack circuit breaker panel) is selected. The tail nav-igation light also utilizes a dual light system. These consists of two identical high intensity halogen lamp in each unit. The upper unit is used as the secondary and the lower unit is used as the primary tail navigation light.The NAV switch controls the navigation lights and is located on the LIGHTING panel. Optional logo lights are mounted on the top rear of the engine pylons and are powered from the RH Aux bus. The NAV light switch is replaced with a three position switch to include the logo light option.
The strobe/beacon lights are supplied with power from a dedicated power supply. The color of the strobe/beacon light sys-tem can be selected white or red. The red light system will generally be used for ground operations since it minimizes the unfavorable effects on vision of the crew or on personnel outside the aircraft during ground handling. The light emission of the red light is reduced and cannot be used as a backup anti-collision light. The shape of the strobe/beacon lights mini-mizes aerodynamic drag. The STROBE BCN switch controls the red beacon lights, white anti-collision strobe lights and the optional wing anti-collision strobe lights. The flight data recorder (FDR) is activated as soon as the STROBE BCN switch is selected to either position.
The nose gear landing light is designed to illuminate the ground reference during the final approach, during takeoff and also to illuminate any major obstructions in the approach area or on the runway.
The taxi light, also mounted on the nose gear, is designed to illuminate the ground reference during takeoff and taxi. The N LDG/TAXI switch is a three position switch, with the center position only powering the taxi light. In the N LDG/TAXI position, both lights on the nose gear will illuminate. They are also controlled by the proximity-sensor electronic unit (PSEU) and powered when the landing gear is in the down and locked position.
The two high intensity discharge (HID) landing lights are incorporated in the wing-to body fairing. This system is designed to provide sufficient illumination for night landing and recognition and also to ensure that no objectionable glare is visible to the pilots. The L and R LANDING switches, located on the LIGHTING control panel, activates the left and/or right HID landing lights respectfully.
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本文链接地址：庞巴迪挑战者300公务机机组操作手册 Bombardier Challenger-灯光(5)
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