Attachment 3
Table A3.1. Facility Class 1: Operational and Training Facilities, Category Group 11:
Airfields Pavement, General
Category
Item and Allowance
Code
included in this category code. From an operational point of view, an apron includes the
prepared surface, tiedowns, markings, stabilized shoulders, lighting, and lateral clearance
zones. For inventory purposes, only the prepared surface is included.
Parking aprons for Army fixed-wing aircraft will normally be based on the C-12 A-C
(Huron) with a wingspan of 17 m [55 ft] and length of 18.25 m [60 ft]. However, mission
requirements may require different aircraft dimensions. The width of the parking lane
should be equal to the aircraft length. The length of a row will be equal to the number of
aircraft times the aircraft wingspan plus the distance between parked aircraft wingtips, as
shown in Table 6.1 of this Manual. The taxilane clear-width for Interior, through and
peripheral taxilanes is shown in Table 6.1 of this Manual. Paved shoulders will be
provided. When a taxilane is to be jointly used by Army fixed-wing and other types of
aircraft, such as helicopters or Air Force aircraft, then this common taxilane width will be
increased an appropriate amount to accommodate the critical use aircraft. At facilities such
as flight training centers, where one type of aircraft predominates, the dimensions of the
specific type will be used in lieu of the C-12.
11311
Fixed-Wing Parking Apron, Unsurfaced
An unpaved, prepared airfield surface used for fixed-wing aircraft parking. The area
includes parking lanes, taxilanes, exits, and entrances. Aircraft move under their own
power to the parking spaces, where they may be parked and secured with tiedowns.
Parking designed to distribute aircraft, for the purpose of increased survivability
(dispersed hardstands), is included in this category code. From an operational point
of view, an apron includes the prepared surface, tiedowns, stabilized shoulders, and
lateral clearance zones. For inventory purposes, only the prepared surface is
included.
11320
Rotary-Wing Parking Apron, Surfaced
A paved airfield surface used for rotary-wing aircraft parking. The area includes
parking lanes, taxilanes, exits, and entrances. Aircraft move under their own power
to the parking spaces where they may be parked and secured with tiedowns. Parking
designed to distribute aircraft for the purpose of increased survivability (dispersed
hardstands) is included in this category code. From an operational point of view, an
apron includes the prepared surface, tiedowns, markings, stabilized shoulders,
lighting, and lateral clearance zones. For inventory purposes, only the prepared
surface is included.
Parking aprons for Army rotary-wing aircraft will be based on the type of rotary-wing
aircraft and parking arrangement, as discussed in Chapter 6 of this Manual. Rotary-
wing taxilane widths will be as shown in Table 6.2 of this Manual. Paved shoulders
will be provided.
A3-6
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