back course


Also found in: Acronyms.

back course

[′bak ‚kȯrs]
(navigation)
In the instrument low-approach system, the course which extends from the back of a localizer antenna system to furnish guidance in the horizontal plane at the rear of the localizer.

back course

back courseclick for a larger image
The course line along the extended centerline of a runway in the opposite direction to the front course, or the localizer course for an ILS (instrument landing system). For an aircraft to approach the instrument runway from the end on which the localizer antenna is installed, the back course must be flown. A localizer back course is shown as on aeronautical charts. The sector located on the opposite side of the localizer from the runway is called the back course sector.
References in periodicals archive ?
Although a few installations block the back course, typically the localizer front course extends past the antenna to the back course, even if one is not charted for use.
Activating vectors-to-final or turning inbound with an activated approach will slew the pointer, but to the back course, not t he front course.
Indeed, as I write this, there are only two back course approaches still available.
How many pilots today can fly a "back course" by hand, or even know what a "back course approach" is?
On an extremely windy day, the Netherland's Terpstra set a time of 14:03 on the out and back course at Losail to beat time trial world champion Bradley Wiggins of Team Sky and four-time time trial world champion Fabian Cancellara of Trek Factory Racing in the 10.9km stage.
There were no mile markers, so it was only when I reached the turnaround point of the out and back course that I realized I had half the distance left to complete.
NAV CANADA will not be installing new Park Air ILS, for a few runway ends that do not support localizer back course (BC) non-precision approaches (see information box).
The JCI (Junior Chambers International) Kadayawan timely will host its first Fun Run activity set this August 18 on an out and back course starting at the city-renowned People's Park grounds.
Answer: You hold 300 inbound, which is the localizer back course. Jepp enroute charts are kind enough to add that notation to the hold itself.
in Auburn and holds the record for the old back course at Juniper Hill in Northboro.
Some 1,200 entries are expected to answer the starting gun when the much anticipated Herbalife Nutrition IronGirl 2019 reels off on an out and back course starting at the Azuela Cove in Lanang.