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Types of Charts Available

The DACS individual data files are:
ENHIGH.DAT: High altitude airways (contermi-

nous U.S.)

ENLOW.DAT: Low altitude airways (conterminous


IAPFIX.DAT: Selected instrument approach proce-

dure NAVAID and fix data.

MTRFIX.DAT: Military training routes data.

ALHIGH.DAT: Alaska high altitude airways data.

ALLOW.DAT: Alaska low altitude airways data.

PR.DAT: Puerto Rico airways data.

HAWAII.DAT: Hawaii airways data.

BAHAMA.DAT: Bahamas routes data.

OCEANIC.DAT: Oceanic routes data.

STARS.DAT: Standard terminal arrivals data.

DP.DAT: Instrument departure procedures data.

LOPREF.DAT: Preferred low altitude IFR routes


HIPREF.DAT: Preferred high altitude IFR routes


ARF.DAT: Air route radar facilities data.

ASR.DAT: Airport surveillance radar facilities data.

2. The Coded Instrument Flight Procedures

(CIFP) (ARINC 424 [Ver 13 & 15]). The CIFP is a

basic digital dataset, modeled to an international

standard, which can be used as a basis to support GPS

navigation. Initial data elements included are: Airport

and Helicopter Records, VHF and NDB Navigation

aids, en route waypoints and airways. Additional data

elements will be added in subsequent releases to

include: departure procedures, standard terminal

arrivals, and GPS/RNAV instrument approach

procedures. The database is updated every 28 days.

The data is available by subscription only and is

distributed on CD−ROM or by ftp download.

3. digital−Visual Charts (d−VC). These digi-

tal VFR charts are geo−referenced images of FAA

Sectional Aeronautical, TAC, and Helicopter Route

charts. Additional digital data may easily be overlaid

on the raster image using commonly available

Geographic Information System software. Data such

as weather, temporary flight restrictions, obstacles, or

other geospatial data can be combined with d−VC

data to support a variety of needs. The file resolution

is 300 dots per inch and the data is 8−bit color. The

data is provided as a GeoTIFF and distributed on

DVD−R media and on the AIS website. The root

mean square error of the transformation will not

exceed two pixels. Digital−VC DVDs are updated

every 28 days and are available by subscription only.

FIG 9−1−14

Chart Supplement U.S. Geographic Areas