Jump Types; Entering Jump Information; Entering Wind Information For Haho And Halo Jumps; Resetting Wind Information - Garmin D2 MACH 1 STANDARD Owner's Manual

Jump Types

The jumpmaster feature allows you to set the jump type to
one of three types: HAHO, HALO, or Static. The jump type
selected determines what additional setup information is
required. For all jump types, drop altitudes and opening
altitudes are measured in feet above ground level (AGL).
HAHO: High Altitude High Opening. The jumpmaster
jumps from a very high altitude and opens the
parachute at a high altitude. You must set a DIP and
a drop altitude of at least 1,000 feet. The drop altitude
is assumed to be the same as the opening altitude.
Common values for a drop altitude range from 12,000
to 24,000 feet AGL.
HALO: High Altitude Low Opening. The jumpmaster jumps
from a very high altitude and opens the parachute at
a low altitude. The required information is the same
as the HAHO jump type, plus an opening altitude. The
opening altitude must not be greater than the drop
altitude. Common values for an opening altitude range
from 2,000 to 6,000 feet AGL.
Static: The wind speed and direction are assumed to be
constant for the duration of the jump. The drop altitude
must be at least 1,000 feet.

Entering Jump Information

1 Press START.
2 Select Jumpmaster.
3 Select a jump type (Jump Types,
4 Complete one or more actions to enter your jump
information:
• Select DIP to set a waypoint for the desired landing
location.
• Select Drop Alt. to set the drop altitude AGL (in feet)
when the jumpmaster exits the aircraft.
• Select Open Alt to set the open altitude AGL (in feet)
when the jumpmaster opens the parachute.
• Select Forward Throw to set the horizontal distance
traveled (in meters) due to aircraft speed.
• Select Crs. to HARP to set the direction traveled (in
degrees) due to aircraft speed.
• Select Wind to set the wind speed (in knots) and
direction (in degrees).
• Select Constant to fine-tune some information for
the planned jump. Depending on the jump type, you
can select Percent Max., Safety Factor, K-Open, K-
Freefall, or K-Static and enter additional information

(Constant Settings,

• Select Auto to DIP to enable navigation to the DIP
automatically after you jump.
• Select Go To HARP to start navigation to the HARP.

Entering Wind Information for HAHO and HALO Jumps

1 Press START.
2 Select Jumpmaster.
3 Select a jump type (Jump Types,
4 Select Wind > Add.
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5 Select an altitude.
6 Enter a wind speed in knots and select Done.
7 Enter a wind direction in degrees and select Done.
The wind value is added to the list. Only wind values
included in the list are used in calculations.
8 Repeat steps 5–7 for each available altitude.

Resetting Wind Information

1 Press START.
2 Select Jumpmaster.
3 Select HAHO or HALO.
4 Select Wind > Reset.
All wind values are removed from the list.

Entering Wind Information for a Static Jump

1 Press START.
2 Select Jumpmaster > Static > Wind.
3 Enter a wind speed in knots and select Done.
4 Enter a wind direction in degrees and select Done.
Constant Settings
Select Jumpmaster, select a jump type, and select
Constant.
Percent Max.: Sets the jump range for all jump types.
A setting less than 100% decreases the drift distance
to the DIP, and a setting greater than 100% increases
the drift distance. More experienced jumpmasters may
want to use smaller numbers, and less experienced
skydivers may want to use larger numbers.
Safety Factor: Sets the margin of error for a jump (HAHO
only). Safety factors are usually integer values of two or
greater, and are determined by the jumpmaster based
on specifications for the jump.
K-Freefall: Sets the wind drag value for a parachute during
freefall, based on the parachute canopy rating (HALO
only). Each parachute should be labeled with a K value.
K-Open: Sets the wind drag value for an open parachute,
based on the parachute canopy rating (HAHO and
HALO). Each parachute should be labeled with a K
value.
K-Static: Sets the wind drag value for a parachute during
a static jump, based on the parachute canopy rating
(Static only). Each parachute should be labeled with a K
value.

Customizing Activities and Apps

You can customize the activities and apps list, data
screens, data fields, and other settings.

Adding or Removing a Favorite Activity

The list of your favorite activities appears when you press
START from the watch face, and it provides quick access
Activities and Apps