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 MIL-HDBK-1021/1
TABLE 4
Runway Overruns Including Stabilized Area, Overrun Area,
and Blast Protective Pavement
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Overruns
Width
Length
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Dimensions
Class A
Equals width of R/W
+ shoulders
1000 feet
Class B
Equals width of R/W
+ shoulders
1000 feet
OLF (T-34)
Equals width of R/W
+ shoulders
500 feet
Longitudinal
Class A/OLF
First 200 feet same as last 1000
Centerline
(T-34)
feet of the runway. Remainder 1.5%
Grades
maximum.
Class B
First 300 feet, same grade as last
3000 feet of the runway. Remainder,
1.5% maximum.
Longitudinal
To avoid abrupt changes in grade
Grade Changes
between the first 300 feet of overrun
and the remainder of overrun, the
maximum change of grade is 2.0% per
100 linear feet for Class B runways.
Transverse Grade
See Figure 12.
Surfaces
Class A & B
Width = Runway width.
Paved Overrun
Length = Same as overrun.
Pave as specified in DM-21.03 and
MIL-HDBK-1021/2/4.
Class A & B
Width = Same as runway shoulder
Unpaved Overrun
widths.
Length = same as overrun.
Treat same as outer part (exclusive of
first 10 feet) of runway shoulder.
Blast Protection
Class B Only
Provide protective pavement at all Class
B runway ends. For typical layout, see
Figure 6. For pavement criteria,
MIL-HDBK-1021/2/4, and DM-21.03.
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