11.14 Flashcards
Whats a strobe light ?
Instruments that emits series of Brief flashing lights at specific intervals
Used as anti - collision lamps or beacon lights
Whats the advantage of LEDs ?
Reduce mass
Reduced power consumption
Longer life span
Resilient to knocks and vibration.
Whats the maximum temperature that decreases a LEDs life span ?
80 degrees
What angle is each navigation light visible from ?
Red ( port ) — 110 degrees
Green ( starboard ) — 110 degrees
White ( rear ) — 70 degrees
Whats the two types of anti-col lights ?
Rotating
Flashing
What discharges the light voltage to higher the intensity ?
Capacitors in the light
When does the retractable landing lights turn on ?
When extended with gear or in direction of airflow
How many cycles per minute does a strobe light usually flash ?
60 cycles per minute
How is emergency internal lights powered ?
By own DC battery supply or connected to aircraft battery
Whats a busbar ?
Ac supply which is ran off both engines which powers the main cabin lights
( half of lights run off one engine and half for other in case of a failure )
What must you insure when installing lights for safety against the pilot ?
Direct rays are shielded from pilots eyes
No reflections are visible to pilot
Do you dim the lights manually or are they automatic ?
Automatic
( can be also controlled manually )
Whats the purpose for floodlights ?
Illumination of instruments, control panels
Where is the master caution system installed ?
Pilots eye level
How long does the emergency lighting power have a duration of ?
10-20 minutes
