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is that activities must be suspended when a spotter aircraft,
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Figure 8-17. MTR chart symbols.
radar, or ground lookout position indicates an aircraft might
be approaching the area.
Parachute Jump Areas
Parachute jump areas are published in the Airport/ Facility
Directory (A/FD). Sites that are used frequently are depicted
on sectional charts. Each pilot should listen to the appropriate
airport radio frequency for parachute operations and be
alert for aircraft which might be conducting parachute
operations.
Other Airspace Areas
Other airspace areas is a general term referring to the majority
of the remaining airspace. It includes:
• Airport advisory areas
• Military training routes (MTRs)
• Temporary fl ight restrictions
(TFRs)
• Terminal Radar Service Areas
• National security areas
Local Airport Advisory
A local airport advisory is an area within 10 statute miles (SM)
of an airport where a control tower is not operating, but where
a fl ight service station (FSS) is located. At these locations,
the FSS provides advisory service to arriving and departing
aircraft. See AIM section 3-5-1 for more information on using
the local airport fl ight station services.
Military Training Routes (MTRs)
National security depends largely on the deterrent effect of
our airborne military forces. To be profi cient, the military
services must train in a wide range of airborne tactics. One
phase of this training involves “low level” combat tactics. The
required maneuvers and high speeds are such that they may
occasionally make the see-and-avoid aspect of VFR fl ight
more diffi cult without increased vigilance in areas containing
such operations. In an effort to ensure the greatest practical
level of safety for all fl ight operations, the Military Training
Route (MTR) program was conceived.
These routes are usually established below 10,000 feet MSL
for operations at speeds in excess of 250 knots. Some route
segments may be defi ned at higher altitudes for purposes of
route continuity. Routes are identifi ed as IFR (IR), and VFR
(VR), followed by a number. MTRs with no segment above
1,500 feet AGL are identifi ed by four numeric characters
(e.g., IR1206, VR1207). MTRs that include one or more
segments above 1,500 feet AGL are identifi ed by three
numeric characters (e.g., IR206, VR207). IFR Low Altitude
En Route Charts depict all IR routes and all VR routes that
accommodate operations above 1,500 feet AGL. IR routes
are conducted in accordance with IFR regardless of weather
conditions.
MTRs are usually indicated with a gray line on the sectional
chart. A WSC aircraft pilot fl ying in the area of VRs or IRs
should question the briefer during the weather brief to fi nd
out if any of the routes are in use, and a possible time frame
for opening and closing. While it is true that the WSC aircraft
pilot has the right of way, the WSC aircraft will generally
come out worse in a midair confl ict with a fast-moving
military aircraft. MTRs, such as the example depicted in
Figure 8-17, are also further defi ned on sectional charts.
Temporary Flight Restrictions (TFRs)
TFRs are put into effect when traffi c in the airspace would
endanger or hamper air or ground activities in the designated
area. For example, a forest fi re, chemical accident, fl ood, or
disaster-relief effort could warrant a TFR, which would be
issued as a Notice to Airmen (NOTAM). The NOTAM begins
with the phrase “FLIGHT RESTRICTIONS” followed by the
location, effective time period, area defi ned in statute miles,
and altitudes affected, which aircraft fl ying in the area must
avoid. The NOTAM also contains the FAA coordination
facility and telephone number, the reason for the restriction,
and any other information deemed appropriate. The pilot
should check NOTAMs as part of fl ight planning.
The reasons for establishing a temporary restriction are to:
• Protect persons and property in the air or on the surface
from an existing or imminent hazard;
• Provide a safe environment for the operation of
disaster relief aircraft;
• Prevent unsafe congestion of sightseeing aircraft
above an incident or event, which may generate a high
degree of public interest;
• Protect declared national disasters for humanitarian
reasons;
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• Protect the President, Vice President, or other public
fi gures; and
• Provide a safe environment for space agency
operations.
It is a pilot’s responsibility to be aware of TFRs in his or her
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Weight-Shift Control Aircraft Flying Handbook(99)
