Kestrel 4500 Horus (Ballistics) - Manual (Page 11)

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• The Tgt heading will change to to indicate the
setting mode.
• The direction will be continuously updated on the
target line.
• Pressing the button again will capture the current
direction as DoF.
• The Tgt heading will return to its normal state.
Note: If the compass is not calibrated, a new screen
will pop up to aleart you that capture won't work
until compass is calibrated.
Wind Speed Quick Key
• Pressing the button while Wind is highlighted will
enter the Wind setting mode.
• The Wind heading will change to to indicate
the setting mode.
• The moving 5-second average for windage and wind
speed will be continuously updated on the wind line.
• The moving 5-second average for wind solution will be
continuously updated.
• Pressing the button again will capture the current
wind speed.
• The Wind heading will return to its normal state.
• The Wind line will show the captured relative wind
direction and wind speed.
Note: If the compass is not calibrated, a new screen
will pop up to alert you that capture mode won't
work until compass is claibrated.
GLOSSARY OF TERMS
Active gun: When a gun is made active, ballistic solutions
for that gun pertaining to all active targets are readily
displayed. Ballistic solutions for guns that are inactive are
not displayed.
Aiming/Ballistic solution: This consists of sight corrections
for windage, elevation (and in the case of a moving target,
lead) for a selected active gun and target, along with other
calculated values such as bullet velocity and energy. On
the main Horus screen, only elevation and windage are
displayed. On the Range Card and Ballistic Info screens,
detailed ballistic solution data is available.
Subsonic: The speed at which the bullet is slower than
the speed of sound. Bullet velocities in this range will be
displayed with a large dot to the left of the value.
Target: A target is characterized by its direction, range,
inclination angle, and applicable wind; a moving target has
a direction and speed of motion. Targets are identified by
a single letter: up to five can be described, designated by
the letters A through E. It’s important to note that wind is
specific to a target – each active target has its own wind
specification.
Transonic: The speed at which the bullet slows to the
speed of sound. This is also seen as the boundary between
supersonic and subsonic. Bullet velocities in this range will
be displayed with a small dot to the left of the value.