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 MIL-HDBK-1021/1
TABLE 7 (Continued)
Helicopter Runway (VFR and IFR)
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Item
Criteria
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Shoulders
Width: 25 feet. The 25 feet shall be select material
compacted and stabilized with asphalt or other material
to protect against rotor blast.
Longitudinal grade: variable, conform to longitudinal
grade of the abutting primary pavement.
Transverse grade: -5% for first 10 feet, then:
-2% minimum.
-4% maximum.
Taxiways
See Table 10.
Marking
For runway and taxiway marking, see NAVAIR
51-50AAA-2.
Runway lateral
VFR:
150 feet.
clearance distance
IFR:
375 feet.
Measured from centerline of runway to fixed and mobile
obstacles.
(1) Fixed obstacles include manmade or natural
features constituting possible hazards to moving
aircraft. Navigational aids and meteorological
equipment are possible exceptions. Additional siting
criteria in NAVFAC P-80.3.
(2) Mobile obstacles include parked aircraft, parked
and moving vehicles, railroad cars, and similar
equipment.
(3)
Taxiing aircraft exempt from this restriction.
(4)
Size of primary surface:
VFR Runway
W = 300 feet.
(See Figure 17)
L = R/W length + 75 feet
each end.
IFR Runway
W = 750 feet.
(See Figure 18)
L = Varies, extends beyond
runway 775 feet from
ground point intercept.
Grades within
5.0% maximum. Exclusive of pavement and shoulders.
primary surface
area in any
direction
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