e. VOR AND LF/MF AIRWAYS - Specified routes that extend from 1200’ AGL (or, in some instances, higher) up to but not including 18,000’ MSL. These airways are depicted on enroute low altitude charts.
(1)
VOR airways are depicted in black and identified by "V" followed by the airway number, e.g., V23. VOR airways are predicated solely on VOR or VORTAC navaids except in Alaska and coastal North Carolina where some VOR airway segments are based on LF/MF navaids and charted in brown instead of black.

(USN/NAVFIG FIL 06-017)

(2)
An airway segment common to two or more routes carries the numbers of all the airways which coincide for that segment. Only the airway number of the airway being used needs to be filed in a flight plan.

(3)
Reporting points are designated for VOR airways. Aircraft will report over these points unless otherwise advised by ATC.

(4) LF/MF airways are predicated solely on LF/MF
navaids and are depicted in brown. (SPEC/ENR 3.5-1)
f. CLASS B AIRSPACE - Generally, that airspace from the surface to 10,000’ MSL surrounding the nation's busiest airports in terms of IFR operations or passenger enplanements. The configuration of each Class B Airspace area is individually tailored and consists of a surface area and two or more layers and is designed to contain all published instrument procedures once an aircraft enters the airspace. An ATC clearance is required for all aircraft to operate in the area and all aircraft that are so cleared receive separation services within the airspace.
(1)
Regardless of weather conditions, an ATC authorization is required prior to operating in Class B Airspace.

(2) EQUIPMENT REQUIRED -

(a)
Operable two-way radio capable of communication with ATC on appropriate frequency.

(b)
For IFR operations, an operable VOR or TACAN receiver.

(c)
Unless authorized by ATC, an operable 4096, coded radar beacon transponder (Mode 3/A) operated within 30 NM of the primary airport around which Class B Airspace is established.

(d)
Operable automatic pressure reporting equipment (Mode C).

(e)
ATC may, upon authorization, immediately authorize a deviation from the altitude reporting equipment. A request for a deviation from the 4096 coded transponder equipment requirement must be submitted to the controlling ATC facility at least one hour before the proposed operation.

(f)
Unless otherwise authorized by ATC, large turbine engine powered aircraft operating to or from the primary airport shall operate at or above the designated floors while within the lateral limits of the Class B Airspace.

(3) FLIGHT PROCEDURES -

(a)
IFR FLIGHT - Aircraft within Class B Airspace are required to operate in accordance with current IFR procedures. A clearance for a visual approach to a primary airport is not authorization for turbine powered airplanes to operate below the floors of the Class B Airspace.
　
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