AIP ENR 3.1−1
United States of America 15 MAR 07
Federal Aviation Administration Nineteenth Edition
ENR 3. ATS ROUTES
ENR 3.1 [RESERVED]
AIP ENR 3.2−1
United States of America 15 MAR 07
Federal Aviation Administration Nineteenth Edition
ENR 3.2 [RESERVED]
AIP ENR 3.3-1
United States of America 15 MAR 07
Federal Aviation Administration Nineteenth Edition
ENR 3.3 Area Navigation (RNAV) Routes
1. RNAV Routes
1.1 Published RNAV routes, including Q-Routes
and T-Routes, can be flight planned for use by
aircraft with RNAV capability, subject to any
limitations or requirements noted on en route charts,
in applicable Advisory Circulars, or by NOTAM.
RNAV routes are depicted in blue on aeronautical
charts and are identified by the letter “Q” or “T”
followed by the airway number (e.g., Q-13, T-205).
Published RNAV routes are RNAV-2 except when
specifically charted as RNAV-1. These routes
require system performance currently met by GPS or
DME/DME/IRU RNAV systems that satisfy the
criteria discussed in AC 90-100A, U.S. Terminal and
En Route Area Navigation (RNAV) Operations.
NOTEAC
90-100A does not apply to over water RNAV routes
(reference 14 CFR Section 91.511, including the Q-routes
in the Gulf of Mexico and the Atlantic routes) or Alaska
VOR/DME RNAV routes (“JxxxR”). The AC does not apply
to off-route RNAV operations, Alaska GPS routes or
Caribbean routes.
1.1.1 Q-routes are available for use by RNAV
equipped aircraft between 18,000 feet MSL and
FL450 inclusive. Q-routes are depicted on Enroute
High Altitude Charts.
1.1.2 T-routes are available for use by RNAV
equipped aircraft from 1,200 feet above the surface
(or in some instances higher) up to but not including
18,000 feet MSL. T-routes are depicted on Enroute
Low Altitude Charts.
1.2 Unpublished RNAV routes are direct routes,
based on area navigation capability, between
waypoints defined in terms of latitude/longitude
coordinates, degree-distance fixes, or offsets from
established routes/airways at a specified distance and
direction. Radar monitoring by ATC is required on all
unpublished RNAV routes.
30 AUG 07
AIP ENR 3.4−1
United States of America 15 MAR 07
Federal Aviation Administration Nineteenth Edition
ENR 3.4 [RESERVED]
AIP ENR 3.5−1
United States of America 15 MAR 07
Federal Aviation Administration Nineteenth Edition
ENR 3.5 Other Routes
1. Airways and Route Systems
1.1Two fixed route systems are established for air
navigation purposes. They are the VOR and L/MF
system and the jet route system. To the extent
possible, these route systems are aligned in an
overlying manner to facilitate transition between
each.
2. VOR and L/MF System
2.1The VOR and L/MF (nondirectional radio
beacons) Airway System consists of airways
designated from 1,200 feet above the surface (or in
some instances higher) up to but not including
18,000feet MSL. These airways are depicted on
EnRoute Low Altitude Charts.
NOTE−
The altitude limits of a victor airway should not be
exceeded except to effect transition within or between route
structures.
2.2Except in Alaska and coastal North Carolina, the
VOR airways are predicated solely on VOR or
VORTAC navigation aids. They are depicted in blue
on aeronautical charts and are identified by a V"
(Victor) followed by the airway number; e.g., V12.
NOTE−
Segments of VOR airways in Alaska and North Carolina
(V56, V290) are based on L/MF navigation aids and
charted in brown instead of blue on en route charts.
2.3 A segment of an airway which is common to two
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