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Orientation 1 to orientation 2 direction of traverse. |
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|  MIL-D-70789A (AR)
When reset, the DRU shall transition from Orientation 1 to
Orientation 2 when the pointing device roll, based on Orientation
1, crosses the 1-2 Threshold Angle in the direction specified by
the 1-2 Direction of Traverse Flag."
o. Orientation 2 - 1 based on pointing device
pitch/roll. This flag, used in conjunction with the "Orientation
2 Based on Pointing Device Attitude" and "Orientation 2 to
Orientation 1 Direction of Traverse" flags, selects the angle
that the DRU is to monitor in determining when it is to
transition from Orientation 2 to Orientation 1.
When set, the DRU shall transition from Orientation 2 to
Orientation 1 when the pointing device pitch, based on
Orientation 2, crosses the 2-1 Threshold Angle in the direction
specified by the 2-1 Direction of Traverse Flag.
When reset, the DRU shall transition from Orientation 2 to
Orientation 1 when the pointing device roll, based on Orientation
2, crosses the 2-1 Threshold Angle in the direction specified by
the 2-1 Direction of Traverse Flag.
p.
Orientation 1 to orientation 2 direction of traverse.
This flag, used in conjunction with the "Orientation 2 Based on
Pointing Device Attitude" and "Orientation 1-2 Based on Pointing
Device Pitch/Roll" flags, controls whether the DRU transitions
from Orientation 1 to Orientation 2 as the selected angle (pitch
or roll) either increases or decreases as it crosses the 1-2
Threshold Angle.
When set to "11", this flag indicates that the DRU shall
transition from Orientation 1 to Orientation 2 when the direction
of traverse causes the absolute value of the angle to increase as
it crosses the Pk 1-2 Threshold Angle.
When set to "00", this flag indicates that the DRU shall
transition from Orientation 1 to Orientation 2 when the direction
of traverse causes the absolute value of the angle to decrease as
it crosses the 1-2 Threshold Angle.
When set to "01", this flag indicates that the DRU shall
transition from Orientation 1 to Orientation 2 when the direction
of traverse causes the angle to numerically increase as it
crosses the 1-2 Threshold Angle.
When set to "10", this flag indicates that the DRU shall
transition from Orientation 1 to Orientation 2 when the direction
of traverse causes the angle to numerically decrease as it
crosses the 1-2 Threshold Angle.
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