MIL-HDBK-1191
ANNEX A
HOSPITAL HELIPAD SYSTEM REQUIREMENTS
This criteria is intended to augment the requirements of
1.
GENERAL.
other Army, Air Force, and Navy aviation lighting and marking criteria by
covering those requirements unique to hospital helipads. Standards, which have
been established for general airfield use, shall be followed where applicable.
2.
DEFINITIONS:
a.
HELIPAD.
A prepared surface area for fixed facilities or marked turf
area for temporary facilities centered within a clear landing area used for
takeoff and landing helicopters.
3.
SPECIAL CRITERIA:
a.
LIGHTING.
(1) PERIMETER. The specific hospital helipad perimeter lighting pattern is
illustrated in attached Figure 10-3, HOSPITAL HELIPAD LIGHTING PATTERN, and
defined for visual meteorological conditions (VMC) operations in attached
TABLE 10-3, HOSPITAL HELIPAD LIGHTING REQUIREMENTS. Spacing, installation and
other criteria and standards can be found in Army, Air Force, and Navy
aviation criteria.
(2) FLOODLIGHTING.
Helipad floodlighting shall be in accordance with
using service (Army, Air Force, and Navy) aviation criteria. TABLE 10-3.
(3) LIMIT LIGHTS.
Limit lights shall be in accordance with using service
(Army, Air Force, and Navy) aviation criteria.
(4) VISUAL GLIDE SLOPE INDICATOR SYSTEM (VGSIS).
The VGSIS shall be a two
box Chase Helicopter Approach Path Indicator (CHAPI) as required by attached
TABLE 10-3. Other guidance can be found in the using service (Army, Air Force,
and Navy) aviation criteria.
(5) ROTATING BEACON. The hospital rotating identification beacon shall be
specified in accordance with STD DET 40-06-05 and installed per using service
(Army, Air Force, and Navy) aviation criteria.
(6) WIND INDICATOR.
The wind indicator shall be illuminated in accordance
with using service (Army, Air Force, and Navy) aviation criteria.
b.
RADIO CONTROLLER. The radio controller shall be in accordance with FAA -
AC150/5345-49A, "SPECIFICATION L-854, RADIO CONTROL EQUIPMENT," and function
as follows:
RADIO CONTROL OPERATION.
The pilot can activate the hospital helipad lighting by keying the microphone
from the helicopter after tuning to the assigned frequency.
The pilot can key his microphone three times within a five second interval and
on the third pulse a relay is energized which turns on the wind indicator
illumination, CHAPI and the perimeter light pattern.
The floodlights can be activated by keying the microphone five times.
The light will remain on until the pilot keys his microphone seven times. This
will activate the turn off time delay relay which de-energize the lights at
the end of the 15 minute delay.
When the lights have been activated by the radio controller the "OFF" function
of the remote "ON-OFF" switch in the manual controller, located in the
10-24
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