79 lines
3.1 KiB
Text
79 lines
3.1 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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See README.lead-computer
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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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<!-- gunsight computer parameters -->
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<!-- start/stop the sight computer
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the computer will be reinitialized if the power is cycled -->
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<computer-on type="int">0</computer-on>
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<!-- offset of guns below sight line in feet -->
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<z-offsetFeet type="float">3.125</z-offsetFeet>
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<!-- average lateral offset of guns in feet relative to sight line -->
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<y-offsetFeet type="float">0.0</y-offsetFeet>
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<!-- elevation of guns relative to alpha in degrees -->
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<gunElevationDegrees type="float">1.0</gunElevationDegrees>
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<ballisticCoefficienct type="float">0.00136354</ballisticCoefficienct> <!-- 0.50 BMG -->
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<muzzleVelocity type="float">2900.0</muzzleVelocity> <!-- feet per second 0.50 BMG -->
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<!-- convergence distance in feet -->
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<gunHarminizationRangeFeet type="float">900.0</gunHarminizationRangeFeet>
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<timeStep type="float">0.2</timeStep> <!-- cycle rate of gun sight computer in seconds -->
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<!-- sight computer damping factor must be between 0.3 and 1.0 -->
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<dampingFactor type="float">1.0</dampingFactor>
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<gunsight-computer-initialized type="int">0</gunsight-computer-initialized>
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<maxAzimuth type="int">170</maxAzimuth> <!-- maximum sight deflection in mils -->
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<maxElevation type="int">170</maxElevation>
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<!-- K14 parameters -->
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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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<mask-off type="int">1</mask-off>
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<reticleSelectorPos type="int">0</reticleSelectorPos>
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<rocketLadder type="int">1</rocketLadder> <!-- set to 0 for K14 and 1 for other K14 models -->
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<!-- The next three are to setup the reticle to the correct starting values -->
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<span type="int">30</span>
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<mils type="float">0.0</mils>
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<range type="float">1000.0</range> <!-- in feet -->
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<fixedReticleOn type="int">0</fixedReticleOn>
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<zCenterLine type="float">0.7375</zCenterLine> <!-- sight line distance from model z axis in meters -->
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<K14C type="int">0</K14C> <!-- set to 1 for K14C -->
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<sunScreenDown type="int">1</sunScreenDown>
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</gunsight>
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...
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</controls>
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