TM 5-823-4
CHAPTER 3
MARKING OR SERVICEABLE RUNWAYS AND TAXIWAYS AT HELIPORTS
end will be designated by number and, where required,
3-1.
General. Marking of heliports will conform to the
by letter.
Numbers and letters assigned will be
requirements as set forth below and govern the initial
determined from the approach direction and will conform
marking and re-marking of serviceable runways,
to the form and dimensions shown in figure 3-1. The
taxiways, landing pads, and other areas designated for
number assigned will be the whole number nearest one-
heliport and helipad operations.
tenth of the magnetic azimuth of the centerline of the
runway, measured clockwise from the magnetic North.
3-2.
Marking with paint. Initial marking of runways
Single digits will not be preceded by a zero. Where
and taxiways should be done as soon as possible,
required, the letters used to differentiate between parallel
subsequent to the required curing period. Re-marking or
runways will be as follows in the order shown from left to
revising existing markings should be accomplished as
right, for two parallel runways-"L", "R".
often as necessary. The effectiveness of markings is
c. Intersection of runway ends. Where runway
heavily dependent upon their proper maintenance to
ends have a common intersection, preference in location
provide maximum contrast with backgrounds.
of the marking will be given to the more important
a. Color marking. All runways will be marked
runway.
with white reflective paint. Identification markers, landing
pads and hoverpoints will be marked with white
3-4.
Taxiway marking requirements. Marking on
nonreflective paint. All taxiways will be painted with
serviceable taxiways will consist of a centerline stripe
yellow nonreflective paint.
and a holding line. The centerline stripe will be a solid
b. Application of paint. Painted marking will be
yellow line 6 inches in width. Where a taxiway and a
applied to paved areas only after the pavements have
runway have a common intersection, the centerline
been allowed to cure thoroughly.
New pavement
marking of the taxiway will terminate at a point in line
surfaces will be allowed to cure for a minimum of 30
with the inside edge of the runway as shown in figure 3-
days before application of marking materials. Care will
1. The holding-line marking will be as shown in detail "A"
be taken to insure that the pavement surface is dry and
of figure 3-1 and will be located 100 feet from the inside
clean prior to painting.
edge of the adjacent runway.
(1) When painted markings are to be
applied to rigid pavements that have been cured with a
3-5.
Heliport identification marker requirements.
membrane-type curing compound, the surface to be
Heliport identification marking patterns will be in
painted must be cleaned thoroughly and the curing
accordance with the dimensional criteria in figure 3-2.
compound must be removed by sandblasting.
a. Application. The marking pattern will be
(2) Flexible pavements will be allowed to
used as an identification marker at all heliports at ground
cure as long as practicable before painting, and, to
level or elevated, and at helicopter takeoff and landing
prevent undue softening of the bitumen by the paint, the
areas at any other location. All helicopter landing areas
maximum drying-time requirements of the paint
bearing the outdated day marker or nonstandard
specifications will be strictly enforced.
identification marking will be re-marked with the proper
identification marking as soon as practicable.
3-3.
Runway marking. Markings on serviceable
b. Location. The marker will be placed in the
runways will consist of centerline marking and runway-
approximate center of the touchdown area of all
direction numbers.
helicopter landing pads and at the ends of all helicopter
a. Runway-centerline marking. The runway-
runways.
centerline marking will be a solid white line 1 foot in
c. Special requirements.
width.
The centerline stripe of each runway will
(1) Existing construction. On all existing
terminate 20 feet from the runway-direction numbers as
facilities where the color of the touchdown surface is
shown in figure 3-1.
lighter than color chip 36440 of Federal Standard 595,
b. Runway-direction number. Each runway
the marking pattern will be outlined with black paint as
shown in figure 3-2.
3-1
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