Chapter 4
Table 4.2. Rotary-Wing Helipads and Hoverpoints.
Item
Item
No.
Description
Requirement
Remarks
Hoverpoints.
9 m (30 ft) diameter
2
Grade
Min. 1.0%
Grade helipad in one direction. Hoverpoints should
Max. 1.5%
be domed to a 150 mm (6 inch) height at the center.
3
Paved Shoulders
See Table 4.4.
Hoverpoints.
4
45.72 m x 45.72
Size of Primary
[150 ft x 150 ft]
Surface (center
min.
primary surface on
Air Force and Army limited use VFR helipad.
helipad)
Navy and Marine Corps Standard VFR helipad.
91.44 m x 91.44 m
Air Force and Army standard VFR helipad.
[300 ft x 300 ft]
472.44 m x 228.60 m
Standard IFR.
[1,550 ft x 750 ft]
Long dimension in direction of helicopter approach.
228.60 m x 228.60 m
Army and Air Force IFR same direction
[750 ft x 750 ft]
ingress/egress.
Min. of 2.0% prior to Exclusive of pavement and shoulders.
5
Grades Within the
For IFR helipads, the grading requirements apply to
channelization.*
Primary Surface
a 91.44 m 91.44 m (300 ft 300 ft) area centered
Max. 5.0%
Area in Any
on the helipad.
Direction
The balance of the area is to be clear of obstructions
and rough graded to the extent necessary to reduce
damage to aircraft in event of an emergency
landing. For VFR helipads, the grade requirements
apply to the entire primary surface.
121.92 m
6
Hoverpoints, VFR, and standard IFR helipads.
Length of Clear
[400 ft]
Begins at the end of the primary surface.
Zone**
251.46 m
Army and Air Force IFR same direction
[825 ft]
ingress/egress.
7
Width of Clear
Corresponds to the width of the primary surface.
Zone**
Center Clear Zone width on extended center of the
pad.
45.72 m
Air Force and Army VFR limited use helipads and
[150 ft]
hoverpoints.
Navy and Marine Corps Standard VFR.
91.44 m
Air Force and Army standard VFR helipad and
[300 ft]
VFR helipad same direction ingress/egress.
4-9
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