A pilot is planning an IFR flight and intends to fly from point LONAM to VENAS via airway L7. In the AIP route remarks, the following note regarding the route exists: LONAM - VENAS CDR 1 Mon-Thu 2300-0700. Decoding the previous note, which statement is correct?
-
A
It requires aircraft to have Conventional Direct Routing capability.
-
B
This route CANNOT be used for flight planning, but may be used tactically at the discretion of ATC.
-
C
During the specified period, this route is NOT available for flight planning.
-
D
It is a conditional route permanently plannable during the mentioned times.
Refer to figure.
Conditional routes (CDRs) are ATS Routes that are only available for Flight Planning under certain conditions. If a route is a CDR route, then a clear box at the end of the route designator will contain either a single number (1,2 or 3), but in some cases may contain two numbers (12, 13), when different CDR restrictions apply, either at different times or levels.
The CDRs are planable and/or usable, according to their individual category, as follows:
- Category 1 – Permanently plannable routes, available for flight planning; times are published in the National AIP.
- Category 2 – Plannable only during times designated in the the Conditional Route Availability Message (CRAM), published at 1500 and valid for the 24 hour period that commences at 0600 UTC the next day.
- Category 3 – Not Plannable and not available for flight planning; assigned by ATC as tactical clearance.
NOTE: CDR restrictions only apply to the section of the ATS route notified, which is not necessarily the whole ATS route. A Conditional Route may have more than one category and those categories may change at certain specified times.
Your Notes (not visible to others)
This question has appeared on the real examination, you can find the related countries below.
-
United Kingdom