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Archive / FAA Instrument Flying Handbook / FAA Instrument Flying Handbook: Chapter 1 — The National Airspace System

Chapter 1 — The National Airspace System, Part 2

Chapter 1 — The National Airspace System — Part 2

FAA-H-8083-15B (2012)

Figure 8-4a. Legend from en route low altitude chart. Figure 1-5. Legend from en route low attitude chart.

the controller may provide the holding direction and the

statement “as published.” [Figure 1-4]

Boundaries separating the jurisdiction of Air Route Traffic

Control Centers (ARTCC) are depicted on charts with blue

serrations . The name of the controlling

facility is printed on the corresponding side

of the division line. ARTCC remote sites are

depicted as blue serrated boxes and contain

the center name, sector name, and the sector frequency.

[Figure 1-4]

Weather Information and Communication Features

En route NAVAIDs also provide weather information and

serve communication functions. When a NAVAID is shown

as a shadowed box, an automated

flight service station (AFSS) of the

same name is directly associated with

the facility. If an AFSS is located

without an associated NAVAID, the

shadowed box is smaller and contains only the name and

identifier. The AFSS frequencies are provided above the

box. (Frequencies 122.2 and 255.4,

and emergency frequencies 121.5 and

243.0 are not listed.)

A Remote Communications Outlet (RCO) associated with

a NAVAID is designated by a thin-lined box with the

controlling AFSS frequency above

the box and the name under the box.

Without an associated facility, the

thin-lined RCO box contains the

AFSS name and remote frequency.

Automated Surface Observing

Station (ASOS), Automated Weather Observing Station

(AWOS), Hazardous Inflight Weather Advisory Service

(HIWAS), and Transcribed Weather Broadcast (TWEB)

are continuously transmitted over

selected NAVAIDs and depicted

in the NAVAID box. ASOS/

AWOS are depicted by a white

“A”, HIWAS by a “H” and TWEB broadcasts by a “T” in a

solid black circle in the upper right or left corner.

New Technologies

Technological advances have made multifunction displays

and moving maps more common in newer aircraft. Even older

aircraft are being retrofitted to include “glass” in the flight

deck. [Figure 1-6] Moving maps improve pilot situational

awareness (SA) by providing a picture of aircraft location

in relation to NAVAIDS, waypoints, airspace, terrain, and

and off-route VORs are used to establish intersections. NDBs

are sometimes collocated with intersections, in which case

passage of the NDB would mark the intersection. A bearing to

an off-route NDB also can provide intersection identification.

A localizer course used to identify an intersection is depicted

by a feathered arrowhead symbol on the en route chart

( ). If feathered markings appear on

the left-hand side of the arrowhead ( ),

a back course (BC) signal is transmitted. On AeroNav Products

en route charts, the localizer symbol is only depicted to identify

an intersection.

Off-route VORs remain the most common means of

identifying intersections when traveling on an airway. Arrows

depicted next to the intersection indicate the NAVAID

to be used for identification. Another means of identifying an

intersection is with the use of DME. A hollow arrowhead

indicates DME is authorized for intersection identification. If

the DME mileage at the intersection is a cumulative distance

of route segments, the mileage is totaled and indicated by

a D-shaped symbol with a mileage number inside .

[Figure 1-4] Approved IFR global positioning system (GPS)

units can also be used to report intersections.

Other Route Information

DME and GPS provide valuable route information concerning

such factors as mileage, position, and ground speed. Even

without this equipment, information is provided on the charts

for making the necessary calculations using time and distance.

The en route chart depicts point-to-point distances on the

airway system. Distances from VOR to VOR are charted with

a number inside of a box . To differentiate distances when

two airways coincide, the word “TO” with the three-letter VOR

identifier appear to the left of the distance boxes .

VOR changeover points (COPs) are depicted on the charts by

this symbol . The numbers indicate the distance at which

to change the VOR frequency. The frequency change might

be required due to signal reception or conflicting frequencies.

If a COP does not appear on an airway, the frequency should

be changed midway between the facilities. A COP at an

intersection may indicate a course change.

Occasionally an “x” appears at a separated segment of an

airway that is not an intersection. The “x” is a mileage

breakdown or computer navigation fix and may indicate a

course change.

Today’s computerized system of ATC has greatly reduced

the need for holding en route. However, published holding

patterns are still found on charts at junctures

where ATC has deemed it necessary to enable

traffic flow. When a holding pattern is charted, Holding Pattern

NAME

Name

000.0 000.0

XPDR 5537 IDNT LCL23:00:34

VOR 1

270°

T AS 100KT

OA T 7°C

13.7

23.0

NA V1 108.00 113.00

NA V2 108.00 110.60

134.000 118.000 COM1

123.800 118.000 COM2

WPT _ _ _ _ _ _ DIS _ _ . _ NM DTK _ _ _° TRK 360°

MAP - NA VIGA TION MAP

MFD provide navigation information - moving map

DCL TRMAP

Figure 1-6. Moving map display.

Figure 1-7. Example of an electronic flight bag.

hazardous weather. GPS systems can be certified for terminal

area and en route use as well as approach guidance.

Additional breakthroughs in display technology are the

new electronic chart systems or electronic flight bags that

facilitate the use of electronic documents in the general

aviation flight deck. [Figure 1-7] An electronic chart or

flight bag is a self-powered electronic library that stores and

displays en route charts and other essential documents on a

screen. These electronic devices can store the digitized United

States terminal procedures, en route charts, the complete

A/FD, in addition to 14 CFR and the AIM. Full touch-screen

based computers allow pilots to view airport approach and

area charts electronically while flying. With FAA approval,

an operator may replace paper charts as well as other paper

materials including minimum equipment lists (MELs),

standard operating procedures (SOPs), standard instrument

departures (SIDs), standard terminal arrival routes (STARs),

checklists, and flight deck manuals. As with paper flight

publications, the electronic database needs to be current

to provide accurate information regarding NAVAIDS,

waypoints, and terminal procedures. Databases are updated

every 28 days and are available from various commercial

vendors. Pilots should be familiar with equipment operation,

capabilities, and limitations prior to use.

Terminal Procedures Publications

While the en route charts provide the information necessary

to safely transit broad regions of airspace, the United States

Terminal Procedures Publication (TPP) enables pilots to

guide their aircraft in the airport area. Whether departing or

arriving, these procedures exist to make the controllers’ and

pilots’ jobs safer and more efficient. Available in booklets by

region (published by AeroNav Products), the TPP includes

approach procedures, STARs, Departure Procedures (DPs),

and airport diagrams.

Departure Procedures

There are two types of DPs: Obstacle Departure Procedures

(ODP) and SIDs. [Figure 1-8] Both types of DPs provide

obstacle clearance protection to aircraft in instrument

meteorological conditions (IMC), while reducing

communications and departure delays. DPs are published in

text and/or charted graphic form. Regardless of the format, all

DPs provide a way to depart the airport and transition to the

en route structure safely. When possible, pilots are strongly

encouraged to file and fly a DP at night, during marginal

visual meteorological conditions (VMC) and IMC.

All DPs provide obstacle clearance provided the aircraft

crosses the end of the runway at least 35 feet AGL; climbs

to 400 feet above airport elevation before turning; and climbs

at least 200 feet per nautical mile (FPNM), unless a higher

climb gradient is specified to the assigned altitude. ATC may

vector an aircraft off a previously assigned DP; however,

the 200 FPNM or the FPNM specified in the DP is required.

Textual ODPs are listed by city and airport in the IFR Take-

Off Minimums and DPs section of the TPP. SIDs are depicted

in the TPP following the approach procedures for the airport.

Standard Terminal Arrival Routes

STARs depict prescribed routes to transition the instrument

pilot from the en route structure to a fix in the terminal area

from which an instrument approach can be conducted. If a

pilot does not have the appropriate STAR, write “No STAR”

in the flight plan. However, if the controller is busy, the pilot

might be cleared along the same route and, if necessary, the

controller has the pilot copy the entire text of the procedure.

STARs are listed alphabetically at the beginning of the

AeroNav Products booklet. Figure 1-9 shows an example

of a STAR, and the legend for STARs and DPs printed in

AeroNav Products booklets.

Instrument Approach Procedure Charts

The instrument approach procedure (IAP) chart provides

the method to descend and land safely in low visibility

conditions. The FAA establishes an IAP after thorough

analyses of obstructions, terrain features, and navigational

facilities. Maneuvers, including altitude changes, course

corrections, and other limitations, are prescribed in the IAP.

The approach charts reflect the criteria associated with the

United States Standard for Terminal Instrument Approach

Procedures (TERPs), which prescribes standardized methods

for use in designing instrument flight procedures.

In addition to the AeroNav Products, other governmental

and corporate entities produce approach procedures. The

U.S. Military IAPs are established and published by the

Department of Defense and are available to the public

upon request. Special IAPs are approved by the FAA for

individual operators and are not available to the general

public. Foreign country standard IAPs are established and

published according to the individual country’s publication

procedures. The information presented in the following

sections highlight features of the United States TPP.

The instrument approach chart is divided into six main

sections, which include the margin identification, pilot

briefing (and notes), plan view, profile view, landing

minimums, and airport diagram. [Figure 1-10] An

examination of each section follows.

Margin Identification

The margin identification, at the top and bottom of the chart,

depicts the airport location and procedure identification.

The civil approach plates are organized by city, then airport

name and state. For example, Orlando Executive in Orlando,

Florida, is alphabetically listed under “O” for Orlando.

Military approaches are organized by airport name first.

The chart’s amendment status appears below the city

and state in the bottom margin. The amendment number

is followed by the five-digit julian-date of the last chart

change.“05300” is read, “the 300th day of 2005.” At the

center of the top margin is the FAA chart reference number

and the approving authority. At the bottom center, the

airport’s latitude and longitude coordinates are provided. If

a chart is original, the date of issuance can be used instead

of the julian-date.

The procedure chart title (top and bottom margin area of

Figure 1-10) is derived from the type of navigational facility

providing final approach course guidance. A runway number

is listed when the approach course is aligned within 30º

of the runway centerline. This type of approach allows a

straight-in landing under the right conditions. The type of

approach followed by a letter identifies approaches that do

not have straight-in landing minimums. Examples include

procedure titles at the same airport, which have only

circling minimums. The first approach of this type created

TAKE-OFF MINIMUMS AND (OBSTACLE) DEPARTURE PROCEDURES

TAKE-OFF MINIMUMS AND (OBSTACLE) DEPARTURE PROCEDURES

SC-1

INSTRUMENT APPROACH PROCEDURE CHARTS

IFR TAKE-OFF MINIMUMS AND (OBSTACLE) DEPARTURE PROCEDURES

NAME TAKE-OFF MINIMUMS NAME TAKE-OFF MINIMUMS

ADA, OK

ADA MUNI (ADH)

AMDT 3 09127 (FAA)

TAKE-OFF MINIMUMS: Rwy 13, 300-1¼ or std. w/

min. climb of 307' per NM to 1300. Rwy 17, 300-1¼ or

std. w/ min. climb of 326' per NM to 1300.

DEPARTURE PROCEDURE: Rwy 17, climb heading

174° to 1600 before proceeding on course.

NOTE: Rwy 13, bush 316' from DER, 43' right of

centerline, 9' AGL/988' MSL. Tower 5477' from DER,

872' left of centerline, 120' AGL/1117' MSL. Post 123'

from DER, 73' right of centerline, 3' AGL/982' MSL.

Tower 1.08 NM from DER, 9' left of centerline, 160'

AGL/1160' MSL. Rwy 17, tower 1.02 NM from DER,

1411' right of centerline, 165' AGL/1165' MSL. Pole

1017' from DER, 449' left of centerline, 90' AGL/1053'

MSL. Trees beginning 83' from DER, 272' left of

centerline, up to 82' AGL/1041' MSL. Trees beginning

32' from DER, 100' right of centerline, up to 58' AGL/

1037' MSL. Rwy 31, trees beginning 2179' from DER,

988' right of centerline, up to 64' AGL/1083' MSL.

Obstruction light on amom 703' from DER, 548' right

of centerline, 6' AGL/1042' MSL. Rwy 35, trees

beginning 75' from DER, 72' left of centerline, up to 56'

AGL/1065' MSL. Trees beginning 132' from DER, 261'

right of centerline, up to 51' AGL/1050' MSL.

ALTUS, OK

ALTUS/QUARTZ MOUNTAIN RGNL (AXS)

ORIG 09267 (FAA)

NOTE: Rwy 35, terrain 51' from DER, 410' right of

centerline, 1435' MSL. Trees beginning 1215' from DER,

765' left of centerline, up to 40' AGL/1470' MSL.

ALTUS AFB (KLTS)

ALTUS, OK . . . . . . . . . . . . . . . . . .09295

TAKE-OFF OBSTACLES: 174° Assault Strip, Aircraft

taxiing 87' from DER, 360' left of centerline, 65' AGL/

1425' MSL, aircraft taxiing between 1038' and 2525' from

DER, 717' left of centerline, 65' AGL/1425' MSL.

ALVA, OK

ALVA RGNL

DEPARTURE PROCEDURE: Rwys 8, 35, climb on

runway heading to 2000 before turning.

Civil Airports and Selected Military Airports

ALL USERS: Airports that have Departure Procedures (DPs) designed specifically to assist pilots in

avoiding obstacles during the climb to the minimum enroute altitude , and/or airports that have civil

IFR take-off minimums other than standard, are listed below. Take-off Minimums and Departure

Procedures apply to all runways unless otherwise specified. Altitudes, unless otherwise indicated, are

minimum altitudes in MSL.

DPs specifically designed for obstacle avoidance are referred to as Obstacle Departure Procedures

(ODPs) and are described below in text, or published separately as a graphic procedure. If the

(Obstacle) DP is published as a graphic procedure, its name will be listed below, and it can be found in

either this volume (civil), or a separate Departure Procedure volume (military), as appropriate. Users

will recognize graphic obstacle DPs by the term "(OBSTACLE)" included in the procedure title; e.g.,

TETON TWO (OBSTACLE). If not assigned a SID or radar vector by ATC, an ODP may be flown

without ATC clearance to ensure obstacle clearance.

Graphic DPs designed by ATC to standardize traffic flows, ensure aircraft separation and enhance

capacity are referred to as "Standard Instrument Departures (SIDs)". SIDs also provide obstacle

clearance and are published under the appropriate airport section. ATC clearance must be received

prior to flying a SID.

CIVIL USERS NOTE: Title 14 Code of Federal Regulations Part 91 prescribes standard take-off rules

and establishes take-off minimums for certain operators as follows: (1) Aircraft having two engines or

less - one statute mile. (2) Aircraft having more than two engines - one-half statute mile. These

standard minima apply in the absence of any different minima listed below.

MILITARY USERS NOTE: Civil (nonstandard) take-off minima are published below. For military take-

off minima, refer to appropriate service directives.

16 DEC 2010 to 13 JAN 2011

16 DEC 2010 to 13 JAN 2011

SE-3, 16 DEC 2010 to 13 JAN 2011

SE-3, 16 DEC 2010 to 13 JAN 2011

Figure 1-8. Obstacle departure procedures (ODP) and standard instrument departures (SID).

16 DEC 2010 to 13 JAN 2011

16 DEC 2010 to 13 JAN 2011

Figure 1-9. DP chart legend and STAR.

SE-3, 16 DEC 2010 to 13 JAN 2011

SE-3, 16 DEC 2010 to 13 JAN 2011

Issuing authority

Procedure ID

Coverage

area/

effective

date

Amendment #

City/airport

Latitude/longitude coordinates

PILOT BRIEFING

AND

PROCEDURE NOTES

AIRPORT

DIAGRAM

PLAN VIEWPROFILEMINIMUMS SE-3, 16 DEC 2010 to 13 JAN 2011

SE-3, 16 DEC 2010 to 13 JAN 2011

Figure 1-10. Instrument approach chart.

at the airport is labeled with the letter A, and the lettering

continues in alphabetical order (e.g., “VOR-A or “LDA-B”).

The letter designation signifies the expectation is for the

procedure to culminate in a circling approach to land. As a

general rule, circling-only approaches are designed for one

of the two following reasons:

• The final approach course alignment with the runway

centerline exceeds 30º.

• The descent gradient is greater than 400 FPNM from

the final approach fix (FAF) to the threshold crossing

height (TCH). When this maximum gradient is

exceeded, the circling-only approach procedure may

be designed to meet the gradient criteria limits.

Further information on this topic can be found in the

Instrument Procedures Handbook, Chapter 4, under

Approach Naming Chart Conventions.

To distinguish between the left, right, and center runways,

an “L,” “R,” or “C” follows the runway number (e.g., “ILS

RWY 16R”). In some cases, an airport might have more than

one circling approach, shown as VOR-A, VOR/DME-B, etc.

More than one navigational system separated by a slash

indicates more than one type of equipment is required to

execute the final approach (e.g., VOR/DME RWY 31).

More than one navigational system separated by “or”

indicates either type of equipment may be used to execute

the final approach (e.g., VOR or GPS RWY 15). Multiple

approaches of the same type, to the same runway and using

the same guidance, have an additional letter from the end of

the alphabet, number, or term in the title (e.g., ILS Z RWY

28, SILVER ILS RWY 28, or ILS 2 RWY 28). VOR/DME

RNAV approaches are identified as VOR/DME RNAV

RWY (runway number). Helicopters have special IAPs

designated with COPTER in the procedure identification

(e.g., COPTER LOC/DME 25L). Other types of navigation

systems may be required to execute other portions of the

approach prior to intercepting the final approach segment

or during the missed approach.

The Pilot Briefing

The pilot briefing is located at the top of the chart and

provides the pilot with information required to complete

the published approach procedure. Included in the pilot

briefing are the NAVAID providing approach guidance,

its frequency, the final approach course, and runway

information. A notes section contains additional procedural

information. For example, a procedural note might indicate

restrictions for circling maneuvers. Some other notes might

concern a local altimeter setting and the resulting change

in the minimums. The use of RADAR may also be noted in

this section. Additional notes may be found in the plan view.

When a triangle containing a “T” ( ) appears in the notes

section, it signifies the airport has nonstandard IFR takeoff

minimums. Pilots should refer to the DPs section of the TPP

to determine takeoff minimums.

When a triangle containing an “A” ( ) appears in the notes

section, it signifies the airport has nonstandard IFR alternate

minimums. Civil pilots should refer to the Alternate Minimums

Section of the TPP to determine alternate minimums. Military

pilots should refer to appropriate regulations.

When a triangle containing an “A” NA ( ) appears in

the notes area, it signifies that Alternate Minimums are Not

Authorized due to unmonitored facility or the absence of

weather reporting service.

Communication frequencies are listed in the order in which

they would be used during the approach. Frequencies for

weather and related facilities are included, where applicable,

such as ATIS, ASOS, AWOS, and AFSSs.

The Plan View

The plan view provides a graphical overhead view of the

procedure and depicts the routes that guide the pilot from

the en route segments to the initial approach fix (IAF).

[Figure 1-10] During the initial approach, the aircraft has

departed the en route phase of flight and is maneuvering to enter

an intermediate or final segment of the instrument approach.

An initial approach can be made along prescribed routes within

the terminal area, which may be along an arc, radial, course,

heading, radar vector, or a combination thereof. Procedure turns

and high-altitude teardrop penetrations are initial approach

segments. Features of the plan view, including the procedure

turn, obstacle elevation, minimum safe altitude (MSA), and

procedure track are depicted in Figure 1-11. Terrain is depicted

in the plan view portion of all IAPs if the terrain within the

plan view exceeds 4,000 feet above the airport elevation, or if

within a 6 NM radius of the airport reference point the terrain

rises at least 2,000 feet above the airport elevation.

Some AeroNav Products charts contain a reference or

distance circle with a specified radius (10 NM is most

common). Normally, approach features within the plan

view are shown to scale; however, only the data within the

reference circle is always drawn to scale.

Concentric dashed circles, or concentric rings around the

distance circle, are used when the information necessary to

the procedure will not fit to scale within the limits of the plan

view area. They serve as a means to systematically arrange

this information in its relative position outside and beyond

the reference circle. These concentric rings are labeled en

route facilities and feeder facilities.

Original source PDFPublished from pages 28–35 of the recorded source chapter.
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