64 lines
2.7 KiB
Text
64 lines
2.7 KiB
Text
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To enable full functionality of the K14 gun sight there are several things
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that need to be done.
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First change the <nasal> section of your *set.xml file so that it looks like the
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following.
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<nasal>
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<!-- your other nasal files -->
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<!-- the following three lines must be exactly like this -->
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<K14>
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<file>Aircraft/Instruments-3d/computing-gun-sights/Nasal/lead-computer.nas</file>
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</K14>
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</nasal>
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Animation:
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For dark conditions when cabin/cockpit illumination is used all of the K14 sight
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is illuminated in response to
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<property>/controls/lighting/cabin-norm</property>
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If you are using a different property for your cabin/cockpit lights you will need to map your
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lighting property to /controls/lighting/cabin-norm.
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Aircraft Specific Properties:
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The following properties will need to be set to configure the site for an aircraft.
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The following five values can be found in the submodels.xnl configuration file.
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/controls/armament/gunsight/z-gunOffsetFeet = Gun position on z axis relative to the sight line in feet.
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Will = <z-offset>offset value</z-offset> + distance from
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aircraft center line to sight line height.
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/controls/armament/gunsight/y-gunOffsetFeet = Gun position on y axis relative to the sight line in feet.
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Will = <y-offset>abs value</y-offset>
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/controls/armament/gunsight/gunElevationDegrees = <pitch-offset>gun pitch setting</pitch-offset>
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/controls/armament/gunsight/ballisticCoefficienct = <eda>xxxxx</eda>
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/controls/armament/gunsight/muzzleVelocity = <speed>xxxxx</speed> = In feet per second
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/controls/armament/gunsight/gunHarminizationRangeFeet = Range where the sight and the bullet
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path cross is level flight in feet.
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Below is an example from the P-51D using the K14A sight which needs some additional
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settings to control power and lighting for the sight.
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<controls>
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<armament>
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<gunsight>
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<power-on type="int">0</power-on>
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<intensity type="float">1.0</intensity>
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<z-offsetFeet type="float">-4.0</z-offsetFeet>
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<y-offsetFeet type="float">0.0</y-offsetFeet>
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<scale type="float">0.6</scale>
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<gunElevationDegrees type="float">3.8</gunElevationDegrees>
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<ballisticCoefficienct type="float">0.00136354</ballisticCoefficienct>
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<muzzleVelocity type="float">2900.0</muzzleVelocity>
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<gunHarminizationRangeFeet type="float">900.0</gunHarminizationRangeFeet>
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<range type="float">900.0</range> <!-- startup default -->
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</gunsight>
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</armament>
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...
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</controls>
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