circling minimums

circling minimums

circling minimumsclick for a larger image
Circling minimum indicated on approach charts.
circling minimums
The minimum descent altitude (MDA) and visibility required for the circling procedure.
circuit
i. The pattern followed by an aircraft from takeoff to landing. It consists of takeoff; climb straight ahead; turn onto the first crosswind (through 90°); turn onto the downwind—where the track the aircraft is following is parallel to the runway but opposite to the takeoff or landing direction; turn onto the base leg (through 90° to 135°); and final approach terminating in landing. On aircraft carriers, the circuit may be circular. Also referred to as an aerodrome traffic circuit.
ii. A path, consisting of various electrical devices joined by wires, to allow an electrical current to flow continuously through it.
References in periodicals archive ?
Approaches are usually published with only circling minimums when the final approach course alignment relative to the runway exceeds 30 degrees (for most procedure types) or the descent angle is greater than 3.77 degrees (for Category C and below).
Jabara has an ILS and an RNAV (GPS) approach to Runway 18, plus a VOR-A and RNAV (GPS)-E, both of which feature only circling minimums. After my takeoff to the south and likely initial heading to the southeast, either of these approach options mean I would have to fly seven to 10 miles north before a turn west and eventual vector into the final approach course (unless the reason for my return involved communications failure, in which case I'd have to fly even further for the full approach).
You can call up an approach chart without fear (or guilt) that maybe the circling minimums changed last month.
There is no free lunch, of course, so remember that the new circling criteria expand the area of protected airspace, generally, by raising circling minimums themselves, to provide more obstacle-free airspace in which to perform the maneuvers.
When the approach only has circling minimums it's a heads up: Something you might expect isn't available here.
"The circling minimums published on the instrument approach chart provide a minimum of 300 feet of obstacle clearance in the circling area.
They won't cancel circling minimums for the last or only conventional (groundbased) approach procedure at the airport.
Not only are circling minimums NA for Cat C and D, but so are straight-in mins.
Don't turn on course until reaching at least 400 feet agl; circling minimums for the runway in use is better if you have any obstacle concerns at all, and traffic pattern altitude is even better.
In a circle-to-land maneuver, you must maintain circling minimums until you are in a position to make a normal rate of descent to the touchdown point.