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Aircraft Parking Aprons

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MIL-HDBK-1021/1
Section 7:
APRONS
7.1
Criteria.  Criteria for design of aircraft parking aprons and access
aprons are included in this section.  The requirement for aircraft mooring eyes
and utilities to be included in the service points are included in the parking
apron criteria.  Aircraft maintenance is performed on the parking apron.
7.2
Aircraft Parking Aprons.  Aircraft parking aprons consist of paved
areas in proximity to maintenance hangars, to provide parking space, tiedown
points, service points, and line maintenance areas for aircraft.  The parking
apron includes interior and peripheral taxi lanes.
7.2.1
Clearances.  Minimum separation distances between parking apron edges
and other facilities shall be as follows:
Edge of apron:
To centerline of
Class B runway
750 feet.
To centerline of
Class A runway
500 feet.
To centerline of
taxiway
150 feet.
The apron edge should be outside
the primary surface.
7.2.2
Pavement.  See Table 12.  The parking area shall be paved with portland
cement concrete to resist fuel and hydraulic fluid spillage.  Joint seals shall
conform to Federal Specifications SS-S-200, Sealant, Joint, Two Component,
Jet-Blast Resistant, Cold Applied for Portland Cement Concrete Pavement, and
SS-S-1614, Sealants, Joint, Jet Fuel Resistant, Hot-Applied, for Portland Cement
and Tar Concrete Pavements.
7.2.3
Area.  The parking apron configuration is dependent upon the local site
and operational considerations.  Minimum pavement consistent with ready access
to both maintenance areas and runways shall be used.  See NAVFAC P-80 for
aircraft spacing criteria and dimensional data on Navy fixed- and rotary-wing
aircraft.  Except in the case of long wingspan aircraft, the distance between
parking rows is governed by jet blast pattern rather than wingspan.  The width
of the taxi lane is determined by the maneuvering room required for an aircraft
maneuvering under its own power.  The minimum safe clearance between maneuvering
aircraft and other fixed or moving obstructions is:
Wingspan
Clearance
Over 100 feet
25
feet.
75 to 100 feet
20
feet.
50 to 74 feet
15
feet.
Less than 50 feet
10
feet.
7.2.4
Service Points.  See Table 13.
Service points shall be provided where
jet aircraft other than cargo transport aircraft are parked, with each service
point serving two aircraft.  Service points are constructed integral with
parking apron pavement, and their height shall not exceed 24 inches above
pavement surface.  A cover to protect utilities outlets from weather shall be
provided.  Special electrical requirements are as follows:
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