Marker Beacons Flashcards
Which axis is the Major Axis of a Marker Beacon?
The long axis (perpendicular to the course)
How is the minor axis oriented?
Parallel to the course
Which marker must an ILS have?
An outer marker.
What color is the outer marker, and what is the code?
Blue. Continuous dashes.
What color is the middle marker, and what is the code?
Amber. Alternating dots and dashes.
What color is the inner marker and what is the code?
White. Continuous dots.
What is a fan marker?
A fan marker is associated with non-precision approaches and illuminates white, but the Morse code is not the same as the inner marker.
How do we check marker Identification?
The Morse code should be clear and correct/
How do we check marker modulation?
The proper light should illuminate.
How do we check minor axis marker width on a non-precision approach? For an ILS?
Fly inbound on course through the signal at the published altitude. Fly inbound, on course, on path. On a commissioning, fly both altitudes if LOC only minima exist.
Marker width is determine by measuring what?
The distance the signal remains above 1700 uV (the strength required to illuminate the respective light in the cockpit).
What configuration is required for measuring beacons?
The gear must be down (Ops Approval letter).
At commissioning, we must measure the major axis of the marker beacon, how do we measure this width?
For Localizers, fly inbound at 75 uA (one-half needle displacement of the localizer course) on both sides of course.
If two marker beacons are close together, what must we do?
A two-part proximity check.
If the beacon is used for holding of other procedural use, the major and minor axis checks must be done at the _______ proposed altitude.
Highest.
