IFR AERONAUTICAL CHART SYMBOLS 42 IFR Enroute Low/High Altitude (U.S. & Alaska Charts) AIRPORTS............................................... 43 RADIO AIDS TO NAVIGATION................................ 44................................... 45 NAVIGATIONAL AND PROCEDURAL INFORMATION............... 48 CULTURE................................................ 49 HYDROGRAPHY........................................... 49 TOPOGRAPHY............................................ 49 Oceanic Route Charts North Atlantic and North Pacific Route Charts AIRPORTS............................................... 50 RADIO AIDS TO NAVIGATION................................ 50................................... 50 NAVIGATIONAL AND PROCEDURAL INFORMATION............... 51 CULTURAL BOUNDARIES................................... 51 HYDROGRAPHY........................................... 51 GENERAL INFORMATION Symbols shown are for the Instrument Flight Rules (IFR) Enroute Low and High Altitude Charts.
43 IFR ENROUTE U.S. & ALASKA CHARTS AIRPORTS AIRPORTS AIRPORT DATA IFR ENROUTE LOW/ HIGH ALTITUDE CHARTS AERONAUTICAL INFORMATION s/seaplane bases shown in BLUE and GREEN have an approved Instrument Approach Procedure published. Those in BLUE have an approved DoD Instrument Approach Procedure and/or DoD RADAR MINIMA published in DoD FLIPS or FAA TPP. s/seaplane bases shown in BROWN do not have a published Instrument Approach Procedure. All IAP s are shown on the Low Altituide Charts. Non-IAP s shown on the U.S. Low Altitude Charts have a minimum hard surface runway of 3000'. Non-IAP s shown on the Alaska Low Altitude Charts have a minimum hard or soft surface runway of 3000'. s shown on the U.S. High Altitude Charts have a minimum hard surface runway of 5000'. s shown on the Alaska High Altitude Charts have a minimum hard or soft surface runway of 4000'. Associated city names for public airports are shown above or preceding the airport name. If airport name and city name are the same, only the airport name is shown. City names for military and private airports are not shown. The airport identifier in parentheses follows the airport name or Pvt. symbol may be offset for enroute navigational aids. Pvt - Private Use CIVIL CIVIL AND MILITARY MILITARY SEAPLANE - CIVIL HELIPORT AIRPORT DATA DEPICTION LOW ALTITUDE - U.S. & ALASKA Associated City Name Name Identifier Elevation Automatic Terminal Information Part-time Service Lighting available Pilot Controlled Lighting Part-time or on request Frequency Lighting Capability: Part-time or established by NOTAM. See /Facility Directory for times of operation. In Alaska see Supplement Alaska Airspace Class Longest runway length to nearest 100 feet with 70 feet as the dividing point (add 00) s indicates soft surface No lighting available At private facilities - indicates no lighting information available. For complete information consult the /Facility Directory. 1. elevation given in feet above or below mean sea level 2. Pvt - Private use, not available to general public. 3. A solid line box enclosing the airport name indicates FAR 93 Special Requirements- see Directory/Supplement 4. "NO SVFR" above the airport name indicates FAR 91 fixed-wing special VFR flight is prohibited 5. C or following the airport identifier indicates Class C or Class D Airspace. 6. symbol may be offset for enroute navigational aids. 7. Associated city names for public airports are shown above or preceding the airport name. If airport name and city name are the same, only the airport name is shown. The airport identifier in parentheses follows the airport name. City names for military and private airports are not shown. Associated City Name Name HIGH ALTITUDE - U.S. Identifier HIGH ALTITUDE - ALASKA Name Elevation Automatic Terminal Information Service Part-time Associated City Name Identifier Longest runway length to nearest 100 feet with 70 feet as the Frequency dividing point (add 00) s indicates soft surface
IFR ENROUTE U.S. & ALASKA CHARTS 44 VHF OMNIDIRECTIONAL RADIO RANGE (VOR) RADIO AIDS TO NAVIGATION NAVIGATION and COMMUNICATION BOXES RADIO AIDS TO NAVIGATION DISTANCE MEASURING EQUIPMENT (DME) TACTICAL AIR NAVIGATION (TACAN) NON-DIRECTIONAL RADIO BEACON (NDB) MARINE RADIO BEACON (RBN) COMPASS LOCATOR BEACON ILS LOCALIZER VOR/DME RNAV WAYPOINT DATA RNAV WAYPOINT
45 IFR ENROUTE U.S. & ALASKA CHARTS LOW ALTITUDE AIRWAYS HIGH ALTITUDE ROUTES VHF / UHF Data is depited in Black LF / MF Data is depicted in Brown RNAV Route data is depicted in Blue MILITARY TRAINING ROUTES (MTR) J4 VOR Airway / Jet Route LF /MF Airway Uncontrolled LF MF Airway Oceanic Route FIXES/ATC REPORT- ING REQUIREMENTS VHF/UHF LF/MF T000 ATS Route Low Altitude RNAV Route GNSS Required Fix-Compulsory Position Report Coordinates are shown for compulsory, offshore and holding fixes SINGLE DIRECTION ROUTES NAMEE Waypoint HIGH ALTITUDE 154 MEA - 23000G Q7 334 300 1000-0600Z V 193 MEA - 27000 MEA - 23000G J12 Q7 300 Joint Jet/RNAV Route 1300-0600Z Q11 Other times routes revert to bi-directional Magnetic Reference Bearing RNAV Route TACTICAL AIR NAVIGATION (TACAN) FIX - ALASKA Fix-Non-Compulsory Position Report Off-set arrows indicate facility forming a fix RNAV Airway away from VHF/UHF NAVAID Airway toward LF/MF NAVAID Waypoint- Compulsory Report Waypoint- Non-Compulsory Report RADIALS AND BEARINGS DIRECTION OF FLIGHT INDICATOR All radials and bearings are magnetic SUBSTITUTE ROUTE FACILITY LOCATORS UNUSABLE ROUTE MILEAGES LOW /HIGH ALTITUDE Total Mileage between Compulsory Reporting Points and/or NAVAIDs BY-PASS ROUTE All Mileages are Nautical (NM) Mileage between other Fixes, NAVAIDs and/or Mileage Breakdown Mileage Breakdown or Computer Navigation Fix (CNF)(no ATC function) AIRWAY RESTRICTION DISTANCE MEASURING EQUIPMENT (DME) FIX (RCRCP) Five-letter identifier in parenthesis indicates CNF with no ATC function
IFR ENROUTE U.S. & ALASKA CHARTS 46 ENROUTE ALTITUDE (MEA) All Altitudes Are MSL Unless Otherwise Noted 3500 3000G 5500 3500 RNAV/GPS MEA 3500 A0 5500 3500 A0 AIR DEFENSE IDENTIFICATION ZONE (ADIZ) ENROUTE ALTITUDE (MEA) GAP MAXIMUM AUTHORIZED ALTITUDE (MAA) All Altitudes Are MSL Unless Otherwise Noted J4 J4 MEA is established when there is a gap in navigation signal coverage AIR ROUTE TRAFFIC CONTROL CENTER (ARTCC) AIR TRAFFIC SERVICE IDENTIFICATION DATA OBSTRUCTION CLEARANCE ALTITUDE (MOCA) 5500 *3500 LOW ALTITUDE MOCA 5500 *3500 ALTIMETER SETTING CHANGE All Altitudes Are MSL Unless Otherwise Noted CHANGEOVER POINT 7000 *6300 T266 112 FLIGHT INFORMATION REGIONS (FIR) ALTITUDE CHANGE CONTROL AREAS (CTA) CROSSING ALTITUDE (MCA) NEHER V6 4000 SW DIGGS V6 4000 SW GRANT T244 7400 SE RECEPTION ALTITUDE (MRA) HOLDING PATTERNS COPEL SHIMY UPPER INFORMATION REGIONS (UIR) UPPER CONTROL AREAS (UTA) RNAV Holding Pattern Magnetic Reference Bearing is determined by the isogonic value at the waypoint or fix. Magnetic Reference Bearing Waypoint RNAV Holding ADDITIONAL CONTROL AREAS
47 IFR ENROUTE U.S. & ALASKA CHARTS OFF ROUTE OBSTRUCTION CLEARANCE ALTITUDE (OROCA) CONTROLLED OROCA is computed similarly to the Maximun Elevation Figure (MEF) found on Visual charts except that it provides an additional vertical buffer of 1,000 feet in designated non-mountainous areas and a 2,000 foot vertical buffer in designated mountainous areas within the United States. SPECIAL USE P - Prohibited Area R - Restricted Area W - Warning Area Low O nly A - Alert Area Canada Only CYR - Restricted Area CYD - Danger Area CYA - Advisory Area Caribbean O nly D - Danger Area In the Caribbean, the first 2 letters represent the country code, i.e. MY: Bahamas, MU: Cuba EXCLUSIO N AREA AND NOTE Internal lines delimit separation of the same Special Use Areas or Exclusion Areas SEE TABULATION ON EACH CHART FOR COMPLETE INFORMATION ON: AREA IDENTIFICATIO N EFFECTIVE ALTITUDE OPERATING TIME CO N TRO LLIN G AG EN CY VO ICE CALL SPECIAL USE Continued
IFR ENROUTE U.S. & ALASKA CHARTS 48 NAVIGATIONAL AND PROCEDURAL INFORMATION CONTROLLED ISOGONIC LINE AND VALUE TIME ZONE During periods of Daylight Saving Time (DT), effective hours will be one hour earlier than shown. All states observe DT except Arizona and Hawaii. CONTROLLED Canada Only ENLARGEMENT AREA MATCH MARK UNCONTROLLED CANADIAN Appropriate notes as required may be shown. OUTSIDE OF U.S. Other than Canada Appropriate notes as required may be shown.
49 IFR ENROUTE U.S. & ALASKA CHARTS NAVIGATIONAL AND PROCEDURAL INFORMATION CRUISING ALTITUDES U.S. only NAVIGATIONAL AND PROCEDURAL INFORMATION NOTES MORSE CODE CULTURE BOUNDARIES CULTURE & HYDROGRAPHY International U.S. /Russia Maritime Line Date Line HYDROGRAPHY SHORELINE TOPOGRAPHY TERRAIN Area Charts
OCEANIC ROUTE CHARTS - Aeronautical Information 50 AIRPORTS AIRPORT DATA LANDPLANE-CIVIL Refueling and repair facilities for normal traffic. LANDPLANE-CIVIL AND MILITARY Refueling and repair facilities for normal traffic. LANDPLANE- MILITARY Refueling and repair facilities for normal traffic. VHF OMNIDIRECTIONAL RADIO RANGE (VOR) DISTANCE MEASURING EQUIPMENT (DME) TACTICAL AIR NAVIGATION (TACAN) NON-DIRECTIONAL RADIO BEACON (NDB) DISTANCE MEASURING EQUIPMENT (DME) IDENTIFICATION BOX OCEANIC ROUTE CHARTS AIR TRAFFIC SER- VICE (ATS) OCEANIC ROUTES Note: Mileages are Nautical (NM) ATS SINGLE DIREC- TION ROUTE AERIAL REFUELING TRACKS RADIO AIDS TO NAVIGATION AIR DEFENSE IDENTIFICATION ZONE (ADIZ) AIR ROUTE TRAFFIC CONTROL CENTER (ARTCC) FLIGHT INFORMATION REGIONS (FIR) and/or (CTA) UPPER INFORMATION REGIONS (UIR) UPPER CONTROL AREAS (UTA) OCEANIC CONTROL AREAS (OCA) and /or (CTA /FIR) ADDITIONAL OCEANIC CONTROL AREAS Note: Limits not shown when coincident with Warning Areas. BUFFER ZONE NON-FREE FLYING ZONE NORTH ATLANTIC / NAVIGATION PERFORMANCE SPECIFICATIONS (NAT/MNPS) REPORTING POINTS SPECIAL USE Warning Area Special Use 12 Mile Limit UNCONTROLLED
51 OCEANIC ROUTE CHARTS - Aeronautical Information NAVIGATIONAL AND PROCEDURAL INFORMATION MILEAGE CIRCLES Note: Mileages are Nautical (NM) Time Zone Note: All time is Coordinated Universal (Standard) Time (UTC) CULTURAL BOUNDARIES INTERNATIONAL MARITIME DATE LINE Overlap Marks NPRC Only COMPASS ROSE Note: Compass Roses oriented to Magnetic North HYDROGRAPHY SHORELINES NOTES WARNING