Chapter 7 Airport Charts. Chapter 7 Airport Charts. §7.1 Introduction. Formats of Airport Charts: The “classic” chart format The “ Briefing Strip TM ” chart format. Heading of “classic” chart format.
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Formats of Airport Charts:
This chart format distributes the same information across the top of the chart so that you are reading it from left to right. It’s a widely used format of airport charts.
The airport chart contains four primary sections:
Takeoff and Alternate Minimums
The top of each airport chart provides standard information about airport, including the location and airport name, elevation, and communication frequencies.
Distinct areas of the heading:
Location Name/City Name
Select the right airport within a particular city
Chart Index Number
The airport identifier, unique to each airport, is a combination of the ICAOregional designation and the airport’s governing agency designation（IATA).
Coordinates represent the airport location as provided by the controlling authority
The airport chart plan view portrays an overhead view of the airport, it can provide you with graphical information about the airport, such as its runways and lighting systems.
Except the length and width of stop way and taxiway, lighting system, the other part of charts are portrayed on scale.
To help you measure distance, the plan view includes a scale showing both feet and meters.
The scale a chart always use range from 1inch=1000feet to 1inch=6000feet.
Magnetic Variation Variation
The Runway Information is focused on the following items:
Runway number is magnetic unless followed by “T” for true in the far north.
Runway number and, when known, magnetic direction unless followed by “T” for true in the far north.
Closed runway. Temporarily closed runways will retain their length and runway numbers.
Elevations of the runways’ entrance and the lengths of the runways are usually marked at the end and the middle of the runways.
Runway number and Magnetic Direction
Entrance elevation of 07L
Length of 07R
Displaced thresholds reduce the length of runway available for landings. This portion of runway prior to a displaced threshold is available for takeoffs in either direction, and landings only from the opposite direction.
Stopways or overruns are areas beyond the takeoff runway at least as wide as the runway and centered upon its extended centerline. They may be used to decelerate an airplane during an aborted takeoff.
In the plan view of the charts, different symbols are used to portray different runway surfaces.
Unpaved runway, such as turf, dirt, or gravel. The type of surface is usually printed on the chart next to the runway.
Pierced steel planking (PSP) Variation
Seaplane operating area or water runway. Dashed lines indicate the operating area.
Area under construction
Unidirectional arrester gear
Bidirectional arrester gear
In addition to runways, the airport chart indicated landing areas as follows:
Helicopter landing pad
Authorized landing area (may be used on Australia charts with limited runway source information
Taxiway and apron
Permanently closed Taxiway
Designated stop bar or designated holding position
Category Ⅱ/Ⅲ holding position
RVR with letter
Airport Identification Beacon
The airport reference point (ARP) is at the approximate geographic center of all usable runway surfaces, and is the point from which official latitude and longitude coordinates are derived. The center of the crosshairs marks the ARP’s exact location. When the ARP is on a runway centerline, an arrow points to its exact location.
On-airport navaid, such as VOR ,NDB ,or LCTR (locators, other than locators associated with ILS). When navaids are offset from the runway, you may need to make significant adjustments in your final approach course, once the runway is in slight.
RVR measuring site (transimissometer). The primary instrument runways at major airports may have as many as three transimissometers providing RVR readings, which include touchdown RVR, mid-RVR, and rollout RVR.
RVR with letter
Cone or wind sock.It is used at both towered and non-towered airports. It can provide the present wind conditions near the runway’s touchdown zone.
Wind tee. Determine the wind direction from a wind tee, but it doesn't indicate wind intensity or gusty conditions. The tail of the tee aligns itself like a weather vane into the wind, so you can take off or land on the runway that most closely parallels the direction of the tee.
Tetrahedron. VariationIt is a landing direction indicator, usually located near a wind direction indicator. It may swing around with the small end pointing into the wind, or it may be manually positioned to show landing direction.
The majority of lighting symbols on the airport diagram are approach lights and beacons.
Approach Lights Variation
Beacons are depicted on the airport diagram as stars “ ”.When the depicted beacon is the airport identification beacon, the star is circled “ ” and may appear with its MSL elevation.
Reference Points Variation
Some required airport information, such as lighting systems and usable lengths, cannot be portrayed in enough detail in the airport chart plan view.
These information appears below the plan view in the box titled “Additional Runway Information.”
This table provides information for each runway charted in the airport diagram, except for permanently closed runways, ultralight runways, and ski strips.
Runway Light System
The first column lists each runway, grouped in approach end pairs. Three types of information are provided for each runway:
Runway light System includes HIRL 、CL、TDZ. The interval of HIRL is 60m；interval of CL is 15(30)m
You can also determine the runway width by counting the number of runway threshold stripes, as indicated in the following table:
Runway is grooved; PAPI of 07L is fixed at the left of runway , angle 3°; PAPI of 25R is fixed at the right of runway , angle 3°; HSTIL are located at High-speed taxiways A4 and A6.
The bottom part of an airport chart includes up to three separate sections:
Minimum for adequate Vis Reference number of runway threshold stripes, as indicated in the following table:
CL operative, centre line of the runway can be seen. One of the TDZ, middle and end of the runaway RVR inoperative, meanwhile the other two operative, the minimum for take off is RVR600FT.
One or Two engines, RVR 50(5000FT) or VIS 1mile; Three or Four engines, RVR 24(2400FT) or VIS 1/2mile.
Take off from 6R, keep Minimum climb grads 281FT/MIN until climb to 400FT.
When take off from 6R, the light、visual reference couldn’t meet the standard, the take off minimum require ceiling to be 200ft,meanwhile VIS 1.25SM.
The following is a part of Hong Kong airport which is revised on October 28th,2005. The minimums for the air carriers which adopt JAA and FAR121 take off from Hong Kong are listed in the following chart.
For all airports authorized Category Ⅱ/Ⅲ, if the RVR/VIS is below 400m, It is required to establish and apply LVP procedure when taking off .
Takeoff minimums published under the title “AIR CARRIER (JAA)” are based on JAR OPS-1 Subpart E. These minimums are provided for operators not applying takeoff minimums as specified under AIR CARRIER .They are shown in the following table.
The criterion of this table is the category of aircraft, but not according to the number of engines, as FAR dose.
§126.96.36.199 Obstacle Departure Procedures (JAA)” are based on JAR OPS-1 Subpart E. These minimums are provided for operators not applying takeoff minimums as specified under AIR CARRIER .They are shown in the following table.
When preparing your IFR flight plan, you must consider the weather reports and forecasts for your destination airport at your estimated time of arrival, plus or minus one hour.
If the weather conditions are poorer than those specified by the governing agency, you must list an alternate airport on your flight plan.
To qualify as an alternate, the airport you select, and its forecasted weather for your arrival time, must meet certain conditions.
End (JAA)” are based on JAR OPS-1 Subpart E. These minimums are provided for operators not applying takeoff minimums as specified under AIR CARRIER .They are shown in the following table.