OPERATOR’S
MANUAL
CMA-9000 FLIGHT MANAGEMENT SYSTEM
Page
A-18
November 19, 2009
DROP IAS/HAT [2L]:
Mission Indicated Air Speed (knts) and Height Above Terrain (HAT) (ft) planned for the
drop. The default is boxes. A manual entry is required. When the entered HAT is less than the entered VERT
DIST value, an invalid data entry message is displayed. Range [50 .. 175] / [ 0 .. 19999]. The maximum sum of
DROP HAT and PI ELEV is 19999 feet. DROP HAT value must be greater than the ACUATION HAT for CUST
HARP. DROP HAT value must be greater than the entered safety factor for CUST HAHO.
DROP TEMP [2R]:
Static air temperature ((C) at the drop altitude. The default is the FMS value taken from the
ADC at the current altitude corrected for temperature deviation. Manual entry may override. When temperature
from ADC is not available, the standard day temperature deviation is used to compute the temperature at the
drop altitude. If the drop HAT has not yet been entered, the ADC static air temperature is displayed, if available.
Otherwise dashes are displayed. Range [-99.9 .. 99.9]
ACTUATION HAT [3L]:
Displayed for CUST HARP only. Height, in feet, above PI where the parachute cord is
pulled. Actuation HAT must be less than the entered DROP HAT, and greater than the entered DECEL DIST.
Default display is boxes. Manual entry is required. Range [0 .. 19999].
SAFETY FACTOR [3L]:
Displayed for CUST HAHO only. A safety buffer (ft) from exit to assembly of
parachutists under canopy and for assembly at a certain altitude once they arrive over the drop zone. The safety
factor must be less than the entered DROP HAT. Default value is 2,000 feet. Range [0 .. 5000].
WIND [3R]:
Access to the CRP01 WIND page.
MEAN WIND [4L]:
Mean Effective Wind (MEW) direction and speed (() /(kt) or (T)/(kt) from PI altitude to drop
altitude to be used in the FMS CARP calculations. Unit used depends on current display setup (true or
mag).The default display is computed by the FMS based on current and predicted wind at the mission altitude. A
manual entry is allowed. If a ground wind is entered (GROUND WND), then the displayed value is modified to
take into account both the FMS predicted value at the drop altitude and the entered ground wind. Range [0 ..
360] / [0 .. 99]. Not displayed for CUST HARP.
HI MEAN WIND [4L]:
Displayed for CUST HARP only. Mean Effective Wind (MEW) direction and speed (() /(kt)
or (T)/(kt) from the drop altitude to the actuation altitude to be used in the FMS CARP calculations. Unit used
depends on current display setup (true or mag).The default display is computed by the FMS based on current
and predicted wind at the drop and actuation altitudes. A manual entry may force a specific value, which may be
based on observations by a ground team using the procedure defined in AFI 11-217. Range [0 .. 360] / [0 ..
99].
GROUND WIND [4R]:
Wind direction and speed (() /(kt) or (T)/(kt) observed by a ground team at PI (Point of
Impact). Unit used depends on current display setup (true or mag). If a Mean Effective Wind (MEW) has been
entered or a LO MEAN WIND for HAHO, this field is cleared. The default display is dashes. Range [0 .. 360] / [0
.. 99]
LO MEAN WIND [5L]:
Displayed for CUST HARP only. Mean Effective Wind (MEW) direction and speed (°)
/(kt) or (
T
)/(kt) from PI altitude to actuation altitude to be used in the FMS CARP calculations. Unit used
depends on current display setup (true or mag).The default display is computed by the FMS based on current
and predicted wind at the actuation altitude. A manual entry is allowed. If a ground wind is entered (GROUND
WND), then the displayed value is modified to take into account both the FMS predicted value at the actuation
altitude and the entered ground wind. If the actuation HAT has not yet been entered, dashes are displayed.
Range [0 .. 360] / [0 .. 99].
PI QNH [5R]:
Altimeter setting at PI in mb or inHg. The displayed unit (mb or inHg) can be toggled via LSK 5R
when the scratchpad is empty. Displayed, in small font, when the FMS altimeter setting (QNH) is used. Manual
entry is allowed in inches of mercury (in Hg) with a range from 27.0 to 32.0 in Hg or in millibars (mb) with a
range from 915 to 1083 mb. When neither a manual PI QNH entry nor the FMS QNH is available, boxes are
displayed.
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