Airport Master Plan - City of Weslaco

depicted on Exhibit 1C, Area
Airspace, as taken from the
Brownsville Sectional Air Chart, May
2000.
As can be seen from the exhibit,
Weslaco Mid Valley Airport is located
within Class E airspace. The Class E
airspace surrounding Weslaco Mid
Valley Airport encompasses airspace
700 feet above ground level (AGL) to
1,200 feet AGL. The Class E airspace
extends outward from the center of the
airport to a radius of seven nautical
miles. The Class E airspace has been
extended outside the seven nautical
mile radius to include the instrument
approaches to Runway 13.
At the southern edge of the seven mile
radius of the Mid Valley Airport control
area is the US Air Defense
Identification Zone (ADIZ), a continuous
zone for control of United States
boundaries. To the east is the edge of
the Harlingen Valley International
Airport Class C Airspace.
Aircraft enroute or departing Weslaco
Mid Valley Airport may use VOR
navigational facilities. The VOR or
VORTAC facilities, as depicted on
Exhibit 1C, Area Airspace are a
system of Federal Airways, also referred
to as Victor Airways. Victor Airways
have been established to allow assured
navigational capability along corridors
of airspace eight miles wide and
extending upward from 1,200 feet AGL
to 18,000 feet MSL between VOR
facilities. For further discussion of
Victor Airways refer to enroute
navigational aids below.
TERMINAL AREA AND
ENROUTE NAVIGATIONAL AIDS
Navigational aids are electronic devices
that transmit radio frequencies which
are received by pilots of properly
equipped aircraft. These transmissions
are translated into point-to-point
guidance and position information. The
types of navigational aids available for
aircraft flying between airports include,
the very high frequency omnidirectional
range (VOR) facility which can also be
equipped with Distance Measuring
Equipment (DME); nondirectional radio
beacon (NDB); and the global
positioning system (GPS).
The VOR, in general, provides azimuth
readings to pilots of properly equipped
aircraft by transmitting a radio signal
at every degree to provide 360
individual navigational courses.
Frequently, distance measuring
equipment (DME) is combined with a
VOR facility to provide distance as well
as direction information to the pilot. In
addition, military tactical air
navigation aids (TACANs) and civil
VORs are commonly combined to form a
VORTAC. A VORTAC provides
distance and direction information to
civil and military pilots. VORs can be
positively identified by a series of Morse
code transmissions that spell the three
letter identifier.
Mid Valley Airport is situated between
two VOR facilities. The McAllen VOR-
DME just west of Weslaco Mid Valley
Airport is identified by the three letter
identifier, MFE. Harlingen VOR is
located to the east and identified by its
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