Chapter 6
Table 6.1. Fixed-Wing Aprons.
Class A Runway
Class B Runway
Item
Item
No.
Description
Requirement
Remarks
Wingtip
6
9.2 m
Army and Air Force airfields,
Clearance of
[30 ft]
aircraft with wingspans up to
Aircraft on
33.5 m (110 ft). For CV-22
Through or
wingtip clearances, see Figure
Primary
6.38..
Peripheral
For Army, all Peripheral taxilanes
Taxilanes
are treated as Primary taxi routes.
("T")
See Note 1.
Min 15.3 m
Army and Air Force airfields,
[50 ft]
aircraft with wingspans of 33.5 m
[110 ft] or more.
For Army, all Peripheral taxilanes
are treated as Primary taxi routes.
See Note 1.
Distance from
7
7.7 m
Army and Air Force airfields.
Peripheral
[25 ft]
Designed for aircraft with
Taxilane
wingspan up to 33.5 m [110 ft].
Centerline to the
For CV-22 wingtip clearances, see
Apron Edge
Figure 6.38.
("C")
11.5 m
Army and Air Force airfields.
[37.5 ft]
Designed for aircraft with
wingspan of 33.5 m [110 ft] and
greater.
Clear Distance
8
7.7 m
Around aircraft fuel vent outlets
Around Aircraft
[25 ft]
(see T.O. 00-25-172).
During Fueling
(FSSZ)
(RSZ)
15.3 m
From a pressurized fuel carrying
[50 ft]
servicing component (see T.O. 00-
25-172).
See Remarks
Consider refueling operations
when locating taxilanes.
Grades in the
Avoid surface drainage patterns
9
Min 0.5%
Direction of
with numerous or abrupt grade
Max 1.5%
changes.
This can produce
excessive flexing of aircraft and
structural damage.
6-8
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