Chapter 4
Table 4.3. Rotary-Wing Landing Lanes.
Item
No.
Item Description
Requirement
Remarks
Landing Lane length based on the number of
1
Length
480 m [1,600 ft]
touchdown points. Evenly space touchdown
to
points along the landing lane.
600 m [2,000 ft]
120 m, min
Provide a number of equally spaced
2
Distance Between
[400 ft, min]
"touchdown" or holding points with adequate
Touchdown Points on
separation.
Landing Lane, Center-
to-Center
3
Width
23 m
For Navy and Marine Corps facilities, increase
[75 ft]
width to 30 m [100 ft] on Landing Lanes that
will regularly accommodate H-53 aircraft.
4
Paved Shoulders
See Table 4.4.
For operations with an active operational air
5
Distance Between
60.96 m [200 ft]
traffic control tower.
Centerlines of Rotary-
Wing Landing Lanes
For operations without an active operational air
91.44 m [300 ft]
traffic control tower.
VFR facilities.
6
Landing Lane Lateral
45.72 m [150 ft]
Clearance Zone
Measured perpendicularly from centerline of
(corresponds to half the
runway to fixed or mobile obstacles. See Table
width of primary
4.1, item 6 for obstacles definition.
surface area)
IFR facilities.
114.3 m (375 ft)
Measured perpendicularly from centerline of
runway to fixed or mobile obstacles. See Table
4.1, item 6 for obstacles definition.
Min 2.0%
Exclusive of pavement and shoulders.
7
Grades Within the
Max 2.0%
Primary Surface Area in
Any Direction
8
Overrun
See Remarks
See Table 4.5
9
Clear Zone*
See Remarks
See Table 4.6.
10
APZ I*
See Remarks
See Table 4.6.
4-19
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